Partially revert 111a6c0c5 (Refactor ConsoleProcessList)

Revert "Override center on launch setting when position specified on cmdline (#14229 )"
**REJECTED**: --pos and --size are not present in 1.15. This reverts commit 58ddc9a907.
2026-04-06 22:29:43 +00:00 · 2022-12-12 21:18:30 -06:00 · 2022-12-12 20:25:26 -06:00 · 2022-12-12 17:43:32 -06:00 · 2022-12-12 17:41:00 -06:00 · 2022-12-12 17:40:30 -06:00
996 changed files with 127245 additions and 16937 deletions
--- a/.github/ISSUE_TEMPLATE/Bug_Report.yml
+++ b/.github/ISSUE_TEMPLATE/Bug_Report.yml
@@ -1,6 +1,6 @@
 name: "Bug report 🐛"
 description: Report errors or unexpected behavior
-labels: [Issue-Bug, Needs-Triage]
+labels: [Issue-Bug]
 body:
 - type: markdown
  attributes:
--- a/.github/actions/spelling/expect/expect.txt
+++ b/.github/actions/spelling/expect/expect.txt
@@ -2183,6 +2183,7 @@ wnd
 WNDALLOC
 WNDCLASS
 WNDCLASSEX
+WNDCLASSEXW
 WNDCLASSW
 Wndproc
 WNegative
--- a/.github/workflows/addToProject.yml
+++ b/.github/workflows/addToProject.yml
@@ -1,20 +0,0 @@
-name: Add triaged bugs & tasks to project board
-# https://github.com/actions/add-to-project
-
-on:
-  issues:
-    types:
-      - labeled
-      - unlabeled
-
-jobs:
-  add-to-project:
-    name: Add issue to project
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/add-to-project@v0.3.0
-        with:
-          project-url: https://github.com/orgs/microsoft/projects/159
-          github-token: ${{ secrets.ADD_TO_PROJECT_PAT }}
-          labeled: Issue-Feature, Needs-Triage, Needs-Author-Feedback, Issue-Scenario
-          label-operator: NOT
--- a/.vsconfig
+++ b/.vsconfig
@@ -26,10 +26,10 @@
    "Microsoft.VisualStudio.Component.VC.Tools.x86.x64",
    "Microsoft.VisualStudio.Component.VC.Tools.ARM64",
    "Microsoft.VisualStudio.Component.VC.ASAN",
-    "Microsoft.VisualStudio.Component.VC.v143.x86.x64",
-    "Microsoft.VisualStudio.Component.VC.v143.ARM64",
+    "Microsoft.VisualStudio.Component.VC.v142.x86.x64",
+    "Microsoft.VisualStudio.Component.VC.v142.ARM64",
    "Microsoft.VisualStudio.ComponentGroup.UWP.VC",
-    "Microsoft.VisualStudio.ComponentGroup.UWP.VC.v143",
+    "Microsoft.VisualStudio.ComponentGroup.UWP.VC.v142",
    "Microsoft.VisualStudio.Component.UWP.VC.ARM64"
  ]
 }
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -81,7 +81,7 @@ When you hit "New Issue", select the type of issue closest to what you want to r
  Microsoft Windows [Version 10.0.18900.1001]
  ```

-* What tools and apps you're using (e.g. VS 2022, VSCode, etc.)
+* What tools and apps you're using (e.g. VS 2019, VSCode, etc.)
 * Don't assume we're experts in setting up YOUR environment and don't assume we are experts in `<your distro/tool of choice>`. Teach us to help you!
 * **We LOVE detailed repro steps!** What steps do we need to take to reproduce the issue? Assume we love to read repro steps. As much detail as you can stand is probably _barely_ enough detail for us!
 * If you're reporting a particular character/glyph not rendering correctly, the specific Unicode codepoint would be MOST welcome (e.g. U+1F4AF, U+4382)
--- a/NOTICE.md
+++ b/NOTICE.md
@@ -215,6 +215,39 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 ```

+
+## boost
+
+**Source**: [https://github.com/boostorg/boost](https://github.com/boostorg/boost)
+
+### License
+
+```
+Boost Software License - Version 1.0 - August 17th, 2003
+
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+```
+
 ## PCG Random Number Generation

 **Source**: [https://github.com/imneme/pcg-cpp](https://github.com/imneme/pcg-cpp)
@@ -243,39 +276,6 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 ```

-## wyhash
-
-**Source**: [https://github.com/wangyi-fudan/wyhash](https://github.com/wangyi-fudan/wyhash)
-
-### License
-
-```
-This is free and unencumbered software released into the public domain.
-
-Anyone is free to copy, modify, publish, use, compile, sell, or
-distribute this software, either in source code form or as a compiled
-binary, for any purpose, commercial or non-commercial, and by any
-means.
-
-In jurisdictions that recognize copyright laws, the author or authors
-of this software dedicate any and all copyright interest in the
-software to the public domain. We make this dedication for the benefit
-of the public at large and to the detriment of our heirs and
-successors. We intend this dedication to be an overt act of
-relinquishment in perpetuity of all present and future rights to this
-software under copyright law.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
-OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-OTHER DEALINGS IN THE SOFTWARE.
-
-For more information, please refer to <http://unlicense.org/>
-```
-
 ## ConEmu
 **Source**: [https://github.com/Maximus5/ConEmu](https://github.com/Maximus5/ConEmu)

--- a/OpenConsole.sln
+++ b/OpenConsole.sln
@@ -401,6 +401,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "UnitTests_Control", "src\ca
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WindowsTerminal.UIA.Tests", "src\cascadia\WindowsTerminal_UIATests\WindowsTerminal.UIA.Tests.csproj", "{F19DACD5-0C6E-40DC-B6E4-767A3200542C}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "api-ms-win-core-synch-l1-2-0", "src\api-ms-win-core-synch-l1-2-0\api-ms-win-core-synch-l1-2-0.vcxproj", "{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}"
+EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Utils", "Utils", "{61901E80-E97D-4D61-A9BB-E8F2FDA8B40C}"
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "RendererAtlas", "src\renderer\atlas\atlas.vcxproj", "{8222900C-8B6C-452A-91AC-BE95DB04B95F}"
@@ -643,7 +645,8 @@ Global
 		{DCF55140-EF6A-4736-A403-957E4F7430BB}.Debug|ARM.ActiveCfg = Debug|Win32
 		{DCF55140-EF6A-4736-A403-957E4F7430BB}.Debug|ARM64.ActiveCfg = Debug|ARM64
 		{DCF55140-EF6A-4736-A403-957E4F7430BB}.Debug|ARM64.Build.0 = Debug|ARM64
-		{DCF55140-EF6A-4736-A403-957E4F7430BB}.Debug|DotNet_x64Test.ActiveCfg = Debug|Win32
+		{DCF55140-EF6A-4736-A403-957E4F7430BB}.Debug|DotNet_x64Test.ActiveCfg = Debug|x64
+		{DCF55140-EF6A-4736-A403-957E4F7430BB}.Debug|DotNet_x64Test.Build.0 = Debug|x64
 		{DCF55140-EF6A-4736-A403-957E4F7430BB}.Debug|DotNet_x86Test.ActiveCfg = Debug|Win32
 		{DCF55140-EF6A-4736-A403-957E4F7430BB}.Debug|x64.ActiveCfg = Debug|x64
 		{DCF55140-EF6A-4736-A403-957E4F7430BB}.Debug|x64.Build.0 = Debug|x64
@@ -661,7 +664,8 @@ Global
 		{DCF55140-EF6A-4736-A403-957E4F7430BB}.Release|ARM.ActiveCfg = Release|Win32
 		{DCF55140-EF6A-4736-A403-957E4F7430BB}.Release|ARM64.ActiveCfg = Release|ARM64
 		{DCF55140-EF6A-4736-A403-957E4F7430BB}.Release|ARM64.Build.0 = Release|ARM64
-		{DCF55140-EF6A-4736-A403-957E4F7430BB}.Release|DotNet_x64Test.ActiveCfg = Release|Win32
+		{DCF55140-EF6A-4736-A403-957E4F7430BB}.Release|DotNet_x64Test.ActiveCfg = Release|x64
+		{DCF55140-EF6A-4736-A403-957E4F7430BB}.Release|DotNet_x64Test.Build.0 = Release|x64
 		{DCF55140-EF6A-4736-A403-957E4F7430BB}.Release|DotNet_x86Test.ActiveCfg = Release|Win32
 		{DCF55140-EF6A-4736-A403-957E4F7430BB}.Release|x64.ActiveCfg = Release|x64
 		{DCF55140-EF6A-4736-A403-957E4F7430BB}.Release|x64.Build.0 = Release|x64
@@ -2308,7 +2312,8 @@ Global
 		{48D21369-3D7B-4431-9967-24E81292CF63}.Debug|ARM.ActiveCfg = Debug|Win32
 		{48D21369-3D7B-4431-9967-24E81292CF63}.Debug|ARM64.ActiveCfg = Debug|ARM64
 		{48D21369-3D7B-4431-9967-24E81292CF63}.Debug|ARM64.Build.0 = Debug|ARM64
-		{48D21369-3D7B-4431-9967-24E81292CF63}.Debug|DotNet_x64Test.ActiveCfg = Debug|Win32
+		{48D21369-3D7B-4431-9967-24E81292CF63}.Debug|DotNet_x64Test.ActiveCfg = Debug|x64
+		{48D21369-3D7B-4431-9967-24E81292CF63}.Debug|DotNet_x64Test.Build.0 = Debug|x64
 		{48D21369-3D7B-4431-9967-24E81292CF63}.Debug|DotNet_x86Test.ActiveCfg = Debug|Win32
 		{48D21369-3D7B-4431-9967-24E81292CF63}.Debug|x64.ActiveCfg = Debug|x64
 		{48D21369-3D7B-4431-9967-24E81292CF63}.Debug|x64.Build.0 = Debug|x64
@@ -2325,7 +2330,8 @@ Global
 		{48D21369-3D7B-4431-9967-24E81292CF63}.Release|ARM.ActiveCfg = Release|Win32
 		{48D21369-3D7B-4431-9967-24E81292CF63}.Release|ARM64.ActiveCfg = Release|ARM64
 		{48D21369-3D7B-4431-9967-24E81292CF63}.Release|ARM64.Build.0 = Release|ARM64
-		{48D21369-3D7B-4431-9967-24E81292CF63}.Release|DotNet_x64Test.ActiveCfg = Release|Win32
+		{48D21369-3D7B-4431-9967-24E81292CF63}.Release|DotNet_x64Test.ActiveCfg = Release|x64
+		{48D21369-3D7B-4431-9967-24E81292CF63}.Release|DotNet_x64Test.Build.0 = Release|x64
 		{48D21369-3D7B-4431-9967-24E81292CF63}.Release|DotNet_x86Test.ActiveCfg = Release|Win32
 		{48D21369-3D7B-4431-9967-24E81292CF63}.Release|x64.ActiveCfg = Release|x64
 		{48D21369-3D7B-4431-9967-24E81292CF63}.Release|x64.Build.0 = Release|x64
@@ -3299,6 +3305,49 @@ Global
 		{F19DACD5-0C6E-40DC-B6E4-767A3200542C}.Release|x64.Build.0 = Release|x64
 		{F19DACD5-0C6E-40DC-B6E4-767A3200542C}.Release|x86.ActiveCfg = Release|Win32
 		{F19DACD5-0C6E-40DC-B6E4-767A3200542C}.Release|x86.Build.0 = Release|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.AuditMode|Any CPU.ActiveCfg = AuditMode|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.AuditMode|ARM.ActiveCfg = AuditMode|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.AuditMode|ARM64.ActiveCfg = AuditMode|ARM64
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.AuditMode|ARM64.Build.0 = AuditMode|ARM64
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.AuditMode|DotNet_x64Test.ActiveCfg = AuditMode|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.AuditMode|DotNet_x86Test.ActiveCfg = AuditMode|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.AuditMode|x64.ActiveCfg = AuditMode|x64
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.AuditMode|x64.Build.0 = AuditMode|x64
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.AuditMode|x86.ActiveCfg = AuditMode|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.AuditMode|x86.Build.0 = AuditMode|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Debug|Any CPU.ActiveCfg = Debug|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Debug|ARM.ActiveCfg = Debug|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Debug|ARM64.Build.0 = Debug|ARM64
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Debug|DotNet_x64Test.ActiveCfg = Debug|x64
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Debug|DotNet_x64Test.Build.0 = Debug|x64
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Debug|DotNet_x86Test.ActiveCfg = Debug|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Debug|DotNet_x86Test.Build.0 = Debug|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Debug|x64.ActiveCfg = Debug|x64
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Debug|x64.Build.0 = Debug|x64
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Debug|x86.ActiveCfg = Debug|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Debug|x86.Build.0 = Debug|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Fuzzing|Any CPU.ActiveCfg = Fuzzing|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Fuzzing|ARM.ActiveCfg = Fuzzing|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Fuzzing|ARM64.ActiveCfg = Fuzzing|ARM64
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Fuzzing|ARM64.Build.0 = Fuzzing|ARM64
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Fuzzing|DotNet_x64Test.ActiveCfg = Fuzzing|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Fuzzing|DotNet_x86Test.ActiveCfg = Fuzzing|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Fuzzing|x64.ActiveCfg = Fuzzing|x64
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Fuzzing|x86.ActiveCfg = Fuzzing|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Fuzzing|x86.Build.0 = Fuzzing|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Release|Any CPU.ActiveCfg = Release|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Release|ARM.ActiveCfg = Release|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Release|ARM64.ActiveCfg = Release|ARM64
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Release|ARM64.Build.0 = Release|ARM64
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Release|DotNet_x64Test.ActiveCfg = Release|x64
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Release|DotNet_x64Test.Build.0 = Release|x64
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Release|DotNet_x86Test.ActiveCfg = Release|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Release|DotNet_x86Test.Build.0 = Release|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Release|x64.ActiveCfg = Release|x64
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Release|x64.Build.0 = Release|x64
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Release|x86.ActiveCfg = Release|Win32
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5}.Release|x86.Build.0 = Release|Win32
 		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.AuditMode|Any CPU.ActiveCfg = AuditMode|Win32
 		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.AuditMode|ARM.ActiveCfg = AuditMode|Win32
 		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.AuditMode|ARM64.ActiveCfg = AuditMode|ARM64
@@ -3313,7 +3362,8 @@ Global
 		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.Debug|ARM.ActiveCfg = Debug|Win32
 		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.Debug|ARM64.ActiveCfg = Debug|ARM64
 		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.Debug|ARM64.Build.0 = Debug|ARM64
-		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.Debug|DotNet_x64Test.ActiveCfg = Debug|Win32
+		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.Debug|DotNet_x64Test.ActiveCfg = Debug|x64
+		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.Debug|DotNet_x64Test.Build.0 = Debug|x64
 		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.Debug|DotNet_x86Test.ActiveCfg = Debug|Win32
 		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.Debug|x64.ActiveCfg = Debug|x64
 		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.Debug|x64.Build.0 = Debug|x64
@@ -3333,7 +3383,8 @@ Global
 		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.Release|ARM.ActiveCfg = Release|Win32
 		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.Release|ARM64.ActiveCfg = Release|ARM64
 		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.Release|ARM64.Build.0 = Release|ARM64
-		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.Release|DotNet_x64Test.ActiveCfg = Release|Win32
+		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.Release|DotNet_x64Test.ActiveCfg = Release|x64
+		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.Release|DotNet_x64Test.Build.0 = Release|x64
 		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.Release|DotNet_x86Test.ActiveCfg = Release|Win32
 		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.Release|x64.ActiveCfg = Release|x64
 		{8222900C-8B6C-452A-91AC-BE95DB04B95F}.Release|x64.Build.0 = Release|x64
@@ -3547,6 +3598,7 @@ Global
 		{05D9052F-D78F-478F-968A-2DE38A6DB996} = {E8F24881-5E37-4362-B191-A3BA0ED7F4EB}
 		{C323DAEE-B307-4C7B-ACE5-7293CBEFCB5B} = {BDB237B6-1D1D-400F-84CC-40A58FA59C8E}
 		{F19DACD5-0C6E-40DC-B6E4-767A3200542C} = {BDB237B6-1D1D-400F-84CC-40A58FA59C8E}
+		{9CF74355-F018-4C19-81AD-9DC6B7F2C6F5} = {89CDCC5C-9F53-4054-97A4-639D99F169CD}
 		{61901E80-E97D-4D61-A9BB-E8F2FDA8B40C} = {59840756-302F-44DF-AA47-441A9D673202}
 		{8222900C-8B6C-452A-91AC-BE95DB04B95F} = {05500DEF-2294-41E3-AF9A-24E580B82836}
 		{06EC74CB-9A12-428C-B551-8537EC964726} = {E8F24881-5E37-4362-B191-A3BA0ED7F4EB}
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ Related repositories include:

 ## Installing and running Windows Terminal

-> **Note**: Windows Terminal requires Windows 10 2004 (build 19041) or later
+> 🔴 Note: Windows Terminal requires Windows 10 2004 (build 19041) or later

 ### Microsoft Store [Recommended]

@@ -52,10 +52,8 @@ fails for any reason, you can try the following command at a PowerShell prompt:
 Add-AppxPackage Microsoft.WindowsTerminal_<versionNumber>.msixbundle
 ```

-> **Note**: If you install Terminal manually:
+> 🔴 Note: If you install Terminal manually:
 >
-> * You may need to install the [VC++ v14 Desktop Framework Package](https://docs.microsoft.com/troubleshoot/cpp/c-runtime-packages-desktop-bridge#how-to-install-and-update-desktop-framework-packages).  
->   This should only be necessary on older builds of Windows 10 and only if you get an error about missing framework packages.
 > * Terminal will not auto-update when new builds are released so you will need
 >   to regularly install the latest Terminal release to receive all the latest
 >   fixes and improvements!
@@ -177,7 +175,7 @@ While overhauling Windows Console, we modernized its codebase considerably,
 cleanly separating logical entities into modules and classes, introduced some
 key extensibility points, replaced several old, home-grown collections and
 containers with safer, more efficient [STL
-containers](https://docs.microsoft.com/en-us/cpp/standard-library/stl-containers?view=vs-2022),
+containers](https://docs.microsoft.com/en-us/cpp/standard-library/stl-containers?view=vs-2019),
 and made the code simpler and safer by using Microsoft's [Windows Implementation
 Libraries - WIL](https://github.com/Microsoft/wil).

@@ -235,7 +233,7 @@ Cause: You're launching the incorrect solution in Visual Studio.
 Solution: Make sure you're building & deploying the `CascadiaPackage` project in
 Visual Studio.

-> **Note**: `OpenConsole.exe` is just a locally-built `conhost.exe`, the classic
+> ⚠ Note: `OpenConsole.exe` is just a locally-built `conhost.exe`, the classic
 > Windows Console that hosts Windows' command-line infrastructure. OpenConsole
 > is used by Windows Terminal to connect to and communicate with command-line
 > applications (via
@@ -266,7 +264,7 @@ help avoid any wasted or duplicate effort.
 The easiest way to communicate with the team is via GitHub issues.

 Please file new issues, feature requests and suggestions, but **DO search for
-similar open/closed preexisting issues before creating a new issue.**
+similar open/closed pre-existing issues before creating a new issue.**

 If you would like to ask a question that you feel doesn't warrant an issue
 (yet), please reach out to us via Twitter:
@@ -293,14 +291,14 @@ If you would like to ask a question that you feel doesn't warrant an issue
  SDK](https://developer.microsoft.com/en-us/windows/downloads/windows-sdk/)
  installed
 * You must have at least [VS
-  2022](https://visualstudio.microsoft.com/downloads/) installed
+  2019](https://visualstudio.microsoft.com/downloads/) installed
 * You must install the following Workloads via the VS Installer. Note: Opening
-  the solution in VS 2022 will [prompt you to install missing components
+  the solution in VS 2019 will [prompt you to install missing components
  automatically](https://devblogs.microsoft.com/setup/configure-visual-studio-across-your-organization-with-vsconfig/):
  * Desktop Development with C++
  * Universal Windows Platform Development
  * **The following Individual Components**
-    * C++ (v143) Universal Windows Platform Tools
+    * C++ (v142) Universal Windows Platform Tools
 * You must install the [.NET Framework Targeting Pack](https://docs.microsoft.com/dotnet/framework/install/guide-for-developers#to-install-the-net-framework-developer-pack-or-targeting-pack) to build test projects

 ## Building the Code
--- a/build/Helix/PrepareHelixPayload.ps1
+++ b/build/Helix/PrepareHelixPayload.ps1
@@ -55,9 +55,8 @@ Copy-Item "build\helix\runtests.cmd" $payloadDir
 Copy-Item "build\helix\InstallTestAppDependencies.ps1" "$payloadDir"
 Copy-Item "build\Helix\EnsureMachineState.ps1" "$payloadDir"

-# Copy the APPX package from the 'drop' artifact dir and Windows Kits
+# Copy the APPX package from the 'drop' artifact dir
 Copy-Item "$repoDirectory\Artifacts\$ArtifactName\appx\CascadiaPackage_0.0.1.0_$Platform.msix" $payloadDir\CascadiaPackage.zip
-Copy-Item "C:\program files (x86)\Microsoft SDKs\Windows Kits\10\ExtensionSDKs\Microsoft.VCLibs.Desktop\14.0\Appx\Retail\x64\Microsoft.VCLibs.x64.14.00.Desktop.appx" $payloadDir\VCLibs.zip

 # Rename it to extension of ZIP because Expand-Archive is real sassy on the build machines
 # and refuses to unzip it because of its file extension while on a desktop, it just
@@ -65,4 +64,3 @@ Copy-Item "C:\program files (x86)\Microsoft SDKs\Windows Kits\10\ExtensionSDKs\M

 # Extract the APPX package
 Expand-Archive -LiteralPath $payloadDir\CascadiaPackage.zip -DestinationPath $payloadDir\appx
-Expand-Archive -LiteralPath $payloadDir\VCLibs.zip -DestinationPath $payloadDir\appx -Force
--- a/build/pgo/Terminal.PGO.DB.nuspec
+++ b/build/pgo/Terminal.PGO.DB.nuspec
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0"?>
 <package xmlns="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd">
  <metadata>
    <id>Microsoft.Internal.Windows.Terminal.PGODatabase</id>
--- a/build/pgo/Terminal.PGO.props
+++ b/build/pgo/Terminal.PGO.props
@@ -9,7 +9,7 @@

  <PropertyGroup>
    <!-- Optional, defaults to main.  Name of the branch which will be used for calculating branch point. -->
-    <PGOBranch>main</PGOBranch>
+    <PGOBranch>release-1.15</PGOBranch>

    <!-- Mandatory.  Name of the NuGet package which will contain PGO databases for consumption by build system. -->
    <PGOPackageName>Microsoft.Internal.Windows.Terminal.PGODatabase</PGOPackageName>
--- a/build/pipelines/daily-loc-submission.yml
+++ b/build/pipelines/daily-loc-submission.yml
@@ -1,62 +0,0 @@
-trigger: none
-pr: none
-schedules:
-  - cron: "0 3 * * 2-6" # Run at 03:00 UTC Tuesday through Saturday (After the work day in Pacific, Mon-Fri)
-    displayName: "Nightly Localization Build"
-    branches:
-      include:
-        - main
-    always: false # only run if there's code changes!
-
-pool:
-  vmImage: windows-2019
-
-resources:
-  repositories:
-  - repository: self
-    type: git
-    ref: main
-  - repository: internal
-    type: git
-    name: Terminal.Internal
-    ref: main
-
-steps:
-
- checkout: self
-  clean: true
-  submodules: false
-  fetchDepth: 1 # Don't need a deep checkout for loc files!
-  persistCredentials: true
-  path: s # Adding a second repo made Azure DevOps change where we're checked out.
-
- checkout: internal
-  clean: true
-  submodules: false
-  fetchDepth: 1
-  persistCredentials: true
-  path: s/Terminal.Internal
-
- task: MicrosoftTDBuild.tdbuild-task.tdbuild-task.TouchdownBuildTask@1
-  displayName: 'Touchdown Build - 7105, PRODEXT'
-  inputs:
-    teamId: 7105
-    authId: '$(TouchdownApplicationID)'
-    authKey: '$(TouchdownApplicationKey)'
-    resourceFilePath: |
-     **\en-US\*.resw
-     Terminal.Internal\PDPs\Stable\PDPs\en-us\PDP.xml
-     Terminal.Internal\PDPs\Preview\PDPs\en-us\PDP.xml
-    outputDirectoryRoot: LocOutput
-    appendRelativeDir: true
-    pseudoSetting: Included
-
-# Saving one of these makes it really easy to inspect the loc output...
- powershell: 'tar czf LocOutput.tar.gz LocOutput'
-  displayName: 'Archive Loc Output for Submission'
-
- task: PublishBuildArtifacts@1
-  displayName: 'Publish Artifact: LocOutput'
-  inputs:
-    PathtoPublish: LocOutput.tar.gz
-    ArtifactName: LocOutput
--- a/build/pipelines/release.yml
+++ b/build/pipelines/release.yml
@@ -2,9 +2,9 @@
 trigger: none
 pr: none

-pool:
+pool: 
  name: WinDevPool-L
-  demands: ImageOverride -equals WinDevVS17-latest
+  demands: ImageOverride -equals WinDevVS16-latest

 parameters:
  - name: branding
@@ -193,6 +193,7 @@ jobs:
      condition: true
      inputs:
        solution: '**\OpenConsole.sln'
+        vsVersion: 16.0
        msbuildArgs: /p:WindowsTerminalOfficialBuild=true /p:WindowsTerminalBranding=${{ parameters.branding }};PGOBuildMode=${{ parameters.pgoBuildMode }} /t:Terminal\CascadiaPackage /p:WindowsTerminalReleaseBuild=true /bl:$(Build.SourcesDirectory)\msbuild.binlog
        platform: $(BuildPlatform)
        configuration: $(BuildConfiguration)
@@ -219,6 +220,7 @@ jobs:
      displayName: Build solution **\OpenConsole.sln for PublicTerminalCore
      inputs:
        solution: '**\OpenConsole.sln'
+        vsVersion: 16.0
        msbuildArgs: /p:WindowsTerminalOfficialBuild=true /p:WindowsTerminalBranding=${{ parameters.branding }};PGOBuildMode=${{ parameters.pgoBuildMode }} /p:WindowsTerminalReleaseBuild=true /t:Terminal\wpf\PublicTerminalCore
        platform: $(BuildPlatform)
        configuration: $(BuildConfiguration)
@@ -227,6 +229,7 @@ jobs:
      displayName: Build solution **\OpenConsole.sln for ConPTY
      inputs:
        solution: '**\OpenConsole.sln'
+        vsVersion: 16.0
        msbuildArgs: /p:WindowsTerminalOfficialBuild=true /p:WindowsTerminalBranding=${{ parameters.branding }};PGOBuildMode=${{ parameters.pgoBuildMode }} /p:WindowsTerminalReleaseBuild=true /t:Conhost\Host_EXE;Conhost\winconpty_DLL
        platform: $(BuildPlatform)
        configuration: $(BuildConfiguration)
@@ -299,6 +302,8 @@ jobs:
      inputs:
        Contents: >-
          **/PublicTerminalCore.dll
+
+          **/api-ms-win-core-synch-l1-2-0.dll
        TargetFolder: $(Build.ArtifactStagingDirectory)/wpf
        OverWrite: true
        flattenFolders: true
@@ -321,7 +326,7 @@ jobs:

 - ${{ if eq(parameters.runCompliance, true) }}:
  - template: ./templates/build-console-compliance-job.yml
-
+  
 - ${{ if eq(parameters.buildTerminal, true) }}:
  - job: BundleAndSign
    strategy:
@@ -548,6 +553,7 @@ jobs:
      displayName: Build solution **\OpenConsole.sln for WPF Control
      inputs:
        solution: '**\OpenConsole.sln'
+        vsVersion: 16.0
        msbuildArgs: /p:WindowsTerminalReleaseBuild=$(UseReleaseBranding);Version=$(XES_PACKAGEVERSIONNUMBER) /t:Pack
        platform: Any CPU
        configuration: $(BuildConfiguration)
--- a/build/pipelines/templates/build-console-audit-job.yml
+++ b/build/pipelines/templates/build-console-audit-job.yml
@@ -13,7 +13,7 @@ jobs:
      name: WinDevPoolOSS-L
    ${{ if ne(variables['System.CollectionUri'], 'https://dev.azure.com/ms/') }}:
      name: WinDevPool-L
-    demands: ImageOverride -equals WinDevVS17-latest
+    demands: ImageOverride -equals WinDevVS16-latest

  steps:
  - checkout: self
@@ -27,6 +27,7 @@ jobs:
    displayName: 'Build solution **\OpenConsole.sln'
    inputs:
      solution: '**\OpenConsole.sln'
+      vsVersion: 16.0
      platform: '$(BuildPlatform)'
      configuration: '$(BuildConfiguration)'
      msbuildArgs: ${{ parameters.additionalBuildArguments }}
--- a/build/pipelines/templates/build-console-ci.yml
+++ b/build/pipelines/templates/build-console-ci.yml
@@ -12,12 +12,12 @@ jobs:
    BuildPlatform: ${{ parameters.platform }}
    WindowsTerminalBranding: ${{ parameters.branding }}
    EnableRichCodeNavigation: true
-  pool:
+  pool: 
    ${{ if eq(variables['System.CollectionUri'], 'https://dev.azure.com/ms/') }}:
      name: WinDevPoolOSS-L
    ${{ if ne(variables['System.CollectionUri'], 'https://dev.azure.com/ms/') }}:
      name: WinDevPool-L
-    demands: ImageOverride -equals WinDevVS17-latest
+    demands: ImageOverride -equals WinDevVS16-latest

  steps:
  - template: build-console-steps.yml
--- a/build/pipelines/templates/build-console-compliance-job.yml
+++ b/build/pipelines/templates/build-console-compliance-job.yml
@@ -71,7 +71,7 @@ jobs:
  # 1ES Component Governance onboarding (Detects open source components). See https://docs.opensource.microsoft.com/tools/cg.html
  - task: ms.vss-governance-buildtask.governance-build-task-component-detection.ComponentGovernanceComponentDetection@0
    displayName: Component Detection
-
+    
  # # PREfast and PoliCheck need Node. Install that first.
  - task: NodeTool@0

@@ -82,7 +82,7 @@ jobs:
  # step instead that builds the code normally before calling them.
  # Also... PREfast will rebuild anyway so that's why we're not running a normal build first.
  # Waste of time to build twice.
-  # PREfast. See https://www.1eswiki.com/wiki/SDL_Native_Rules_Build_Task
+  # PREfast. See https://www.1eswiki.com/wiki/SDL_Native_Rules_Build_Task 

  # The following 1ES tasks all operate completely differently and have a different syntax for usage.
  # Most notable is every one of them has a different way of excluding things.
@@ -98,9 +98,7 @@ jobs:
    displayName: 'Run the PREfast SDL Native Rules for MSBuild'
    condition: succeededOrFailed()
    inputs:
-      setupCommandlines: '"C:\Program Files\Microsoft Visual Studio\2022\Enterprise\Common7\Tools\VsMSBuildCmd.bat"'
-      msBuildCommandline: msbuild.exe /nologo /m /p:WindowsTerminalOfficialBuild=true /p:WindowsTerminalBranding=${{ parameters.branding }} /p:WindowsTerminalReleaseBuild=true /p:platform=$(BuildPlatform) /p:configuration=$(BuildConfiguration) /t:Terminal\Window\WindowsTerminal /p:VisualStudioVersion=17.0 $(Build.SourcesDirectory)\OpenConsole.sln
-      msBuildVersion: "17.0"
+      msBuildCommandline: msbuild.exe /nologo /m /p:WindowsTerminalOfficialBuild=true /p:WindowsTerminalBranding=${{ parameters.branding }} /p:WindowsTerminalReleaseBuild=true /p:platform=$(BuildPlatform) /p:configuration=$(BuildConfiguration) /t:Terminal\Window\WindowsTerminal /p:VisualStudioVersion=16.0 $(Build.SourcesDirectory)\OpenConsole.sln

  # Copies output from PREfast SDL Native Rules task to expected location for consumption by PkgESSecComp
  - task: CopyFiles@1
@@ -148,7 +146,7 @@ jobs:
    continueOnError: true

  # Set XES_SERIALPOSTBUILDREADY to run Security and Compliance task once per build
-  - powershell: Write-Host "##vso[task.setvariable variable=XES_SERIALPOSTBUILDREADY;]true"
+  - powershell: Write-Host “##vso[task.setvariable variable=XES_SERIALPOSTBUILDREADY;]true”  
    displayName: 'Set XES_SERIALPOSTBUILDREADY Vars'

  # https://www.osgwiki.com/wiki/Package_ES_Security_and_Compliance
@@ -158,12 +156,12 @@ jobs:
  #   (PREfast, PoliCheck, Credscan)
  # - Runs Windows-specific compliance tasks inside the task
  #   + CheckCFlags - ensures that compiler and linker flags meet Windows standards
-  #   + CFGCheck/XFGCheck - ensures that Control Flow Guard (CFG) or
+  #   + CFGCheck/XFGCheck - ensures that Control Flow Guard (CFG) or 
  #                         eXtended Flow Guard (XFG) are enabled on binaries
  #                         NOTE: CFG is deprecated and XFG isn't fully ready yet.
  #                         NOTE2: CFG fails on an XFG'd binary
  # - Brokers all security/compliance task logs to "Trust Services Automation (TSA)" (https://aka.ms/tsa)
-  #   which is a system that maps all errors into the appropriate bug database
+  #   which is a system that maps all errors into the appropriate bug database 
  #   template for each organization since they all vary. It should also suppress
  #   new bugs when one already exists for the product.
  #   This one is set up to go to the OS repository and use the given parameters
@@ -200,4 +198,4 @@ jobs:
            - toolName: CredScan
              enable: false
            - toolName: XFGCheck
-              enable: false
+              enable: false
--- a/build/pipelines/templates/build-console-fuzzing.yml
+++ b/build/pipelines/templates/build-console-fuzzing.yml
@@ -9,12 +9,12 @@ jobs:
  variables:
    BuildConfiguration: ${{ parameters.configuration }}
    BuildPlatform: ${{ parameters.platform }}
-  pool:
+  pool: 
    ${{ if eq(variables['System.CollectionUri'], 'https://dev.azure.com/ms/') }}:
      name: WinDevPoolOSS-L
    ${{ if ne(variables['System.CollectionUri'], 'https://dev.azure.com/ms/') }}:
      name: WinDevPool-L
-    demands: ImageOverride -equals WinDevVS17-latest
+    demands: ImageOverride -equals WinDevVS16-latest

  steps:
  - checkout: self
@@ -32,11 +32,12 @@ jobs:
      echo VCToolsInstallDir = %VCToolsInstallDir%
      echo ##vso[task.setvariable variable=VCToolsInstallDir]%VCToolsInstallDir%
    displayName: 'Retrieve VC tools directory'
-
+  
  - task: VSBuild@1
    displayName: 'Build solution **\OpenConsole.sln'
    inputs:
      solution: '**\OpenConsole.sln'
+      vsVersion: 16.0
      platform: '$(BuildPlatform)'
      configuration: '$(BuildConfiguration)'
      msbuildArgs: "${{ parameters.additionalBuildArguments }}"
@@ -87,4 +88,4 @@ jobs:
    displayName: 'Publish All Build Artifacts'
    inputs:
      PathtoPublish: '$(Build.ArtifactStagingDirectory)'
-      ArtifactName: 'fuzzingBuildOutput'
+      ArtifactName: 'fuzzingBuildOutput'
--- a/build/pipelines/templates/build-console-pgo.yml
+++ b/build/pipelines/templates/build-console-pgo.yml
@@ -12,12 +12,12 @@ jobs:
    BuildConfiguration: ${{ parameters.configuration }}
    BuildPlatform: ${{ parameters.platform }}
    PGOBuildMode: 'Instrument'
-  pool:
+  pool: 
    ${{ if eq(variables['System.CollectionUri'], 'https://dev.azure.com/ms/') }}:
      name: WinDevPoolOSS-L
    ${{ if ne(variables['System.CollectionUri'], 'https://dev.azure.com/ms/') }}:
      name: WinDevPool-L
-    demands: ImageOverride -equals WinDevVS17-latest
+    demands: ImageOverride -equals WinDevVS16-latest

  steps:
  - template: build-console-steps.yml
@@ -34,7 +34,7 @@ jobs:
    configuration: ${{ parameters.configuration }}
    platform: ${{ parameters.platform }}
    rerunPassesRequiredToAvoidFailure: ${{ parameters.rerunPassesRequiredToAvoidFailure }}
-
+    
 - template: helix-processtestresults-job.yml
  parameters:
    name: 'ProcessTestResults'
--- a/build/pipelines/templates/build-console-steps.yml
+++ b/build/pipelines/templates/build-console-steps.yml
@@ -28,6 +28,7 @@ steps:
  displayName: 'Build solution **\OpenConsole.sln'
  inputs:
    solution: '**\OpenConsole.sln'
+    vsVersion: 16.0
    platform: '$(BuildPlatform)'
    configuration: '$(BuildConfiguration)'
    msbuildArgs: "${{ parameters.additionalBuildArguments }} /p:PGOBuildMode=$(PGOBuildMode) /bl:$(Build.SourcesDirectory)\\msbuild.binlog"
--- a/build/pipelines/templates/helix-runtests-job.yml
+++ b/build/pipelines/templates/helix-runtests-job.yml
@@ -43,9 +43,9 @@ jobs:
      filename: 'set'

  - task: NuGetToolInstaller@0
-    displayName: 'Use NuGet 6.3.0'
+    displayName: 'Use NuGet 5.2.0'
    inputs:
-      versionSpec: 6.3.0
+      versionSpec: 5.2.0

  - task: 333b11bd-d341-40d9-afcf-b32d5ce6f23b@2
    displayName: 'NuGet restore build/Helix/packages.config'
--- a/build/pipelines/templates/pgo-merge-pgd-job.yml
+++ b/build/pipelines/templates/pgo-merge-pgd-job.yml
@@ -27,9 +27,9 @@ jobs:
    displayName: 'Retrieve VC tools directory'

  - task: NuGetToolInstaller@0
-    displayName: 'Use NuGet 6.3.0'
+    displayName: 'Use NuGet 5.2.0'
    inputs:
-      versionSpec: 6.3.0
+      versionSpec: 5.2.0

  - task: NuGetAuthenticate@0

--- a/build/pipelines/templates/restore-nuget-steps.yml
+++ b/build/pipelines/templates/restore-nuget-steps.yml
@@ -1,8 +1,8 @@
 steps:
 - task: NuGetToolInstaller@0
-  displayName: 'Use NuGet 6.3.0'
+  displayName: 'Use NuGet 5.2.0'
  inputs:
-    versionSpec: 6.3.0
+    versionSpec: 5.2.0

 - task: NuGetAuthenticate@0

--- a/build/pipelines/templates/test-console-ci.yml
+++ b/build/pipelines/templates/test-console-ci.yml
@@ -11,12 +11,12 @@ jobs:
  variables:
    BuildConfiguration: ${{ parameters.configuration }}
    BuildPlatform: ${{ parameters.platform }}
-  pool:
+  pool: 
    ${{ if eq(variables['System.CollectionUri'], 'https://dev.azure.com/ms/') }}:
      name: WinDevPoolOSS-L
    ${{ if ne(variables['System.CollectionUri'], 'https://dev.azure.com/ms/') }}:
      name: WinDevPool-L
-    demands: ImageOverride -equals WinDevVS17-latest
+    demands: ImageOverride -equals WinDevVS16-latest

  steps:
  - checkout: self
--- a/build/rules/Branding.targets
+++ b/build/rules/Branding.targets
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <PropertyGroup>
    <_WTBrandingPreprocessorToken Condition="'$(WindowsTerminalBranding)'=='Preview'">WT_BRANDING_PREVIEW</_WTBrandingPreprocessorToken>
    <_WTBrandingPreprocessorToken Condition="'$(WindowsTerminalBranding)'=='Release'">WT_BRANDING_RELEASE</_WTBrandingPreprocessorToken>
--- a/build/rules/CollectWildcardResources.targets
+++ b/build/rules/CollectWildcardResources.targets
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="16.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <PropertyGroup>
  </PropertyGroup>

--- a/build/rules/GenerateFeatureFlags.proj
+++ b/build/rules/GenerateFeatureFlags.proj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="16.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <!-- THIS PROJECT CANNOT BE LOADED INTO THE SOLUTION. -->
  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />

--- a/build/rules/GenerateSxsManifestsFromWinmds.targets
+++ b/build/rules/GenerateSxsManifestsFromWinmds.targets
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="16.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <PropertyGroup>
    <BeforeLinkTargets Condition="'$(WindowsTargetPlatformVersion)' &gt;= '10.0.18362.0'">
      $(BeforeLinkTargets);
--- a/common.openconsole.props
+++ b/common.openconsole.props
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

  <!--
  This props file is a workaround for the fact that for wapproj projects,
--- a/consolegit2gitfilters.json
+++ b/consolegit2gitfilters.json
@@ -26,6 +26,7 @@
    "/doc/user-docs/",
    "/src/tools/MonarchPeasantSample/",
    "/src/tools/MonarchPeasantPackage/",
+    "/src/api-ms-win-core-synch-l1-2-0/",
    "/src/tools/ansi-color/",
    "/src/tools/ColorTool/",
    "/scratch/",
--- a/custom.props
+++ b/custom.props
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <!-- This file is read by XES, which we use in our Release builds. -->
  <PropertyGroup Label="Version">
    <!--
@@ -17,7 +17,7 @@
    <XesUseOneStoreVersioning>true</XesUseOneStoreVersioning>
    <XesBaseYearForStoreVersion>2022</XesBaseYearForStoreVersion>
    <VersionMajor>1</VersionMajor>
-    <VersionMinor>17</VersionMinor>
+    <VersionMinor>15</VersionMinor>
    <VersionInfoProductName>Windows Terminal</VersionInfoProductName>
  </PropertyGroup>
 </Project>
--- a/dep/Console/ConIoSrv.h
+++ b/dep/Console/ConIoSrv.h
@@ -13,10 +13,6 @@ Licensed under the MIT license.
 #define CIS_EVENT_TYPE_FOCUS         (1)
 #define CIS_EVENT_TYPE_FOCUS_ACK     (2)

-#define CIS_MSG_TYPE_MAPVIRTUALKEY   (0)
-#define CIS_MSG_TYPE_VKKEYSCAN       (1)
-#define CIS_MSG_TYPE_GETKEYSTATE     (2)
-
 #define CIS_MSG_TYPE_GETDISPLAYSIZE  (3)
 #define CIS_MSG_TYPE_GETFONTSIZE     (4)
 #define CIS_MSG_TYPE_SETCURSOR       (5)
@@ -35,22 +31,6 @@ typedef struct {
    UCHAR Type;

    union {
-        struct {
-            UINT Code;
-            UINT MapType;
-            UINT ReturnValue;
-        } MapVirtualKeyParams;
-
-        struct {
-            WCHAR Character;
-            SHORT ReturnValue;
-        } VkKeyScanParams;
-
-        struct {
-            int VirtualKey;
-            SHORT ReturnValue;
-        } GetKeyStateParams;
-
        struct {
            CD_IO_DISPLAY_SIZE DisplaySize;

--- a/dep/jsoncpp/README.md
+++ b/dep/jsoncpp/README.md
@@ -2,8 +2,8 @@

 [Amalgamated](https://github.com/open-source-parsers/jsoncpp/wiki/Amalgamated)
 from source commit
-[6aba23f](https://github.com/open-source-parsers/jsoncpp/commit/6aba23f4a8628d599a9ef7fa4811c4ff6e4070e2),
-release 1.9.3.
+[5defb4e](https://github.com/open-source-parsers/jsoncpp/commit/5defb4ed1a4293b8e2bf641e16b156fb9de498cc),
+release 1.9.5.

 > Generating amalgamated source and header JsonCpp is provided with a script to
 > generate a single header and a single source file to ease inclusion into an
--- a/dep/jsoncpp/cgmanifest.json
+++ b/dep/jsoncpp/cgmanifest.json
@@ -6,7 +6,7 @@
        "type": "git",
        "git": {
          "repositoryUrl": "https://github.com/open-source-parsers/jsoncpp",
-          "commitHash": "6aba23f4a8628d599a9ef7fa4811c4ff6e4070e2"
+          "commitHash": "5defb4ed1a4293b8e2bf641e16b156fb9de498cc"
        }
      }
    }
--- a/dep/jsoncpp/json/json-forwards.h
+++ b/dep/jsoncpp/json/json-forwards.h
@@ -7,28 +7,28 @@
 // //////////////////////////////////////////////////////////////////////

 /*
-The JsonCpp library's source code, including accompanying documentation, 
+The JsonCpp library's source code, including accompanying documentation,
 tests and demonstration applications, are licensed under the following
 conditions...

-Baptiste Lepilleur and The JsonCpp Authors explicitly disclaim copyright in all 
-jurisdictions which recognize such a disclaimer. In such jurisdictions, 
+Baptiste Lepilleur and The JsonCpp Authors explicitly disclaim copyright in all
+jurisdictions which recognize such a disclaimer. In such jurisdictions,
 this software is released into the Public Domain.

 In jurisdictions which do not recognize Public Domain property (e.g. Germany as of
 2010), this software is Copyright (c) 2007-2010 by Baptiste Lepilleur and
 The JsonCpp Authors, and is released under the terms of the MIT License (see below).

-In jurisdictions which recognize Public Domain property, the user of this 
-software may choose to accept it either as 1) Public Domain, 2) under the 
-conditions of the MIT License (see below), or 3) under the terms of dual 
+In jurisdictions which recognize Public Domain property, the user of this
+software may choose to accept it either as 1) Public Domain, 2) under the
+conditions of the MIT License (see below), or 3) under the terms of dual
 Public Domain/MIT License conditions described here, as they choose.

 The MIT License is about as close to Public Domain as a license can get, and is
 described in clear, concise terms at:

   http://en.wikipedia.org/wiki/MIT_License
-   
+
 The full text of the MIT License follows:

 ========================================================================
@@ -94,10 +94,10 @@ license you like.
 // 3. /CMakeLists.txt
 // IMPORTANT: also update the SOVERSION!!

-#define JSONCPP_VERSION_STRING "1.9.3"
+#define JSONCPP_VERSION_STRING "1.9.5"
 #define JSONCPP_VERSION_MAJOR 1
 #define JSONCPP_VERSION_MINOR 9
-#define JSONCPP_VERSION_PATCH 3
+#define JSONCPP_VERSION_PATCH 5
 #define JSONCPP_VERSION_QUALIFIER
 #define JSONCPP_VERSION_HEXA                                                   \
  ((JSONCPP_VERSION_MAJOR << 24) | (JSONCPP_VERSION_MINOR << 16) |             \
@@ -162,11 +162,10 @@ public:
   * Release memory which was allocated for N items at pointer P.
   *
   * The memory block is filled with zeroes before being released.
-   * The pointer argument is tagged as "volatile" to prevent the
-   * compiler optimizing out this critical step.
   */
-  void deallocate(volatile pointer p, size_type n) {
-    std::memset(p, 0, n * sizeof(T));
+  void deallocate(pointer p, size_type n) {
+    // memset_s is used because memset may be optimized away by the compiler
+    memset_s(p, n * sizeof(T), 0, n * sizeof(T));
    // free using "global operator delete"
    ::operator delete(p);
  }
--- a/dep/jsoncpp/json/json.h
+++ b/dep/jsoncpp/json/json.h
@@ -6,28 +6,28 @@
 // //////////////////////////////////////////////////////////////////////

 /*
-The JsonCpp library's source code, including accompanying documentation, 
+The JsonCpp library's source code, including accompanying documentation,
 tests and demonstration applications, are licensed under the following
 conditions...

-Baptiste Lepilleur and The JsonCpp Authors explicitly disclaim copyright in all 
-jurisdictions which recognize such a disclaimer. In such jurisdictions, 
+Baptiste Lepilleur and The JsonCpp Authors explicitly disclaim copyright in all
+jurisdictions which recognize such a disclaimer. In such jurisdictions,
 this software is released into the Public Domain.

 In jurisdictions which do not recognize Public Domain property (e.g. Germany as of
 2010), this software is Copyright (c) 2007-2010 by Baptiste Lepilleur and
 The JsonCpp Authors, and is released under the terms of the MIT License (see below).

-In jurisdictions which recognize Public Domain property, the user of this 
-software may choose to accept it either as 1) Public Domain, 2) under the 
-conditions of the MIT License (see below), or 3) under the terms of dual 
+In jurisdictions which recognize Public Domain property, the user of this
+software may choose to accept it either as 1) Public Domain, 2) under the
+conditions of the MIT License (see below), or 3) under the terms of dual
 Public Domain/MIT License conditions described here, as they choose.

 The MIT License is about as close to Public Domain as a license can get, and is
 described in clear, concise terms at:

   http://en.wikipedia.org/wiki/MIT_License
-   
+
 The full text of the MIT License follows:

 ========================================================================
@@ -93,10 +93,10 @@ license you like.
 // 3. /CMakeLists.txt
 // IMPORTANT: also update the SOVERSION!!

-#define JSONCPP_VERSION_STRING "1.9.3"
+#define JSONCPP_VERSION_STRING "1.9.5"
 #define JSONCPP_VERSION_MAJOR 1
 #define JSONCPP_VERSION_MINOR 9
-#define JSONCPP_VERSION_PATCH 3
+#define JSONCPP_VERSION_PATCH 5
 #define JSONCPP_VERSION_QUALIFIER
 #define JSONCPP_VERSION_HEXA                                                   \
  ((JSONCPP_VERSION_MAJOR << 24) | (JSONCPP_VERSION_MINOR << 16) |             \
@@ -161,11 +161,10 @@ public:
   * Release memory which was allocated for N items at pointer P.
   *
   * The memory block is filled with zeroes before being released.
-   * The pointer argument is tagged as "volatile" to prevent the
-   * compiler optimizing out this critical step.
   */
-  void deallocate(volatile pointer p, size_type n) {
-    std::memset(p, 0, n * sizeof(T));
+  void deallocate(pointer p, size_type n) {
+    // memset_s is used because memset may be optimized away by the compiler
+    memset_s(p, n * sizeof(T), 0, n * sizeof(T));
    // free using "global operator delete"
    ::operator delete(p);
  }
@@ -575,7 +574,7 @@ public:
 // be used by...
 #if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)
 #pragma warning(push)
-#pragma warning(disable : 4251)
+#pragma warning(disable : 4251 4275)
 #endif // if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)

 #pragma pack(push, 8)
@@ -788,10 +787,10 @@ private:
    CZString(ArrayIndex index);
    CZString(char const* str, unsigned length, DuplicationPolicy allocate);
    CZString(CZString const& other);
-    CZString(CZString&& other);
+    CZString(CZString&& other) noexcept;
    ~CZString();
    CZString& operator=(const CZString& other);
-    CZString& operator=(CZString&& other);
+    CZString& operator=(CZString&& other) noexcept;

    bool operator<(CZString const& other) const;
    bool operator==(CZString const& other) const;
@@ -867,14 +866,15 @@ public:
  Value(const StaticString& value);
  Value(const String& value);
  Value(bool value);
+  Value(std::nullptr_t ptr) = delete;
  Value(const Value& other);
-  Value(Value&& other);
+  Value(Value&& other) noexcept;
  ~Value();

  /// \note Overwrite existing comments. To preserve comments, use
  /// #swapPayload().
  Value& operator=(const Value& other);
-  Value& operator=(Value&& other);
+  Value& operator=(Value&& other) noexcept;

  /// Swap everything.
  void swap(Value& other);
@@ -1159,9 +1159,9 @@ private:
  public:
    Comments() = default;
    Comments(const Comments& that);
-    Comments(Comments&& that);
+    Comments(Comments&& that) noexcept;
    Comments& operator=(const Comments& that);
-    Comments& operator=(Comments&& that);
+    Comments& operator=(Comments&& that) noexcept;
    bool has(CommentPlacement slot) const;
    String get(CommentPlacement slot) const;
    void set(CommentPlacement slot, String comment);
@@ -1442,8 +1442,8 @@ public:
   *  because the returned references/pointers can be used
   *  to change state of the base class.
   */
-  reference operator*() { return deref(); }
-  pointer operator->() { return &deref(); }
+  reference operator*() const { return const_cast<reference>(deref()); }
+  pointer operator->() const { return const_cast<pointer>(&deref()); }
 };

 inline void swap(Value& a, Value& b) { a.swap(b); }
@@ -1506,8 +1506,7 @@ namespace Json {
 * \deprecated Use CharReader and CharReaderBuilder.
 */

-class JSONCPP_DEPRECATED(
-    "Use CharReader and CharReaderBuilder instead.") JSON_API Reader {
+class JSON_API Reader {
 public:
  using Char = char;
  using Location = const Char*;
@@ -1524,13 +1523,13 @@ public:
  };

  /** \brief Constructs a Reader allowing all features for parsing.
+    * \deprecated Use CharReader and CharReaderBuilder.
   */
-  JSONCPP_DEPRECATED("Use CharReader and CharReaderBuilder instead")
  Reader();

  /** \brief Constructs a Reader allowing the specified feature set for parsing.
+    * \deprecated Use CharReader and CharReaderBuilder.
   */
-  JSONCPP_DEPRECATED("Use CharReader and CharReaderBuilder instead")
  Reader(const Features& features);

  /** \brief Read a Value from a <a HREF="http://www.json.org">JSON</a>
@@ -1797,6 +1796,9 @@ public:
   * - `"allowSpecialFloats": false or true`
   *   - If true, special float values (NaNs and infinities) are allowed and
   *     their values are lossfree restorable.
+   * - `"skipBom": false or true`
+   *   - If true, if the input starts with the Unicode byte order mark (BOM),
+   *     it is skipped.
   *
   * You can examine 'settings_` yourself to see the defaults. You can also
   * write and read them just like any JSON Value.
@@ -2000,6 +2002,8 @@ public:
   *  - Number of precision digits for formatting of real values.
   *  - "precisionType": "significant"(default) or "decimal"
   *  - Type of precision for formatting of real values.
+   *  - "emitUTF8": false or true
+   *  - If true, outputs raw UTF8 strings instead of escaping them.

   *  You can examine 'settings_` yourself
   *  to see the defaults. You can also write and read them just like any
@@ -2035,7 +2039,7 @@ public:
 /** \brief Abstract class for writers.
 * \deprecated Use StreamWriter. (And really, this is an implementation detail.)
 */
-class JSONCPP_DEPRECATED("Use StreamWriter instead") JSON_API Writer {
+class JSON_API Writer {
 public:
  virtual ~Writer();

@@ -2055,7 +2059,7 @@ public:
 #pragma warning(push)
 #pragma warning(disable : 4996) // Deriving from deprecated class
 #endif
-class JSONCPP_DEPRECATED("Use StreamWriterBuilder instead") JSON_API FastWriter
+class JSON_API FastWriter
    : public Writer {
 public:
  FastWriter();
@@ -2115,7 +2119,7 @@ private:
 #pragma warning(push)
 #pragma warning(disable : 4996) // Deriving from deprecated class
 #endif
-class JSONCPP_DEPRECATED("Use StreamWriterBuilder instead") JSON_API
+class JSON_API
    StyledWriter : public Writer {
 public:
  StyledWriter();
@@ -2184,7 +2188,7 @@ private:
 #pragma warning(push)
 #pragma warning(disable : 4996) // Deriving from deprecated class
 #endif
-class JSONCPP_DEPRECATED("Use StreamWriterBuilder instead") JSON_API
+class JSON_API
    StyledStreamWriter {
 public:
  /**
--- a/dep/jsoncpp/jsoncpp.cpp
+++ b/dep/jsoncpp/jsoncpp.cpp
@@ -6,28 +6,28 @@
 // //////////////////////////////////////////////////////////////////////

 /*
-The JsonCpp library's source code, including accompanying documentation, 
+The JsonCpp library's source code, including accompanying documentation,
 tests and demonstration applications, are licensed under the following
 conditions...

-Baptiste Lepilleur and The JsonCpp Authors explicitly disclaim copyright in all 
-jurisdictions which recognize such a disclaimer. In such jurisdictions, 
+Baptiste Lepilleur and The JsonCpp Authors explicitly disclaim copyright in all
+jurisdictions which recognize such a disclaimer. In such jurisdictions,
 this software is released into the Public Domain.

 In jurisdictions which do not recognize Public Domain property (e.g. Germany as of
 2010), this software is Copyright (c) 2007-2010 by Baptiste Lepilleur and
 The JsonCpp Authors, and is released under the terms of the MIT License (see below).

-In jurisdictions which recognize Public Domain property, the user of this 
-software may choose to accept it either as 1) Public Domain, 2) under the 
-conditions of the MIT License (see below), or 3) under the terms of dual 
+In jurisdictions which recognize Public Domain property, the user of this
+software may choose to accept it either as 1) Public Domain, 2) under the
+conditions of the MIT License (see below), or 3) under the terms of dual
 Public Domain/MIT License conditions described here, as they choose.

 The MIT License is about as close to Public Domain as a license can get, and is
 described in clear, concise terms at:

   http://en.wikipedia.org/wiki/MIT_License
-   
+
 The full text of the MIT License follows:

 ========================================================================
@@ -202,14 +202,18 @@ template <typename Iter> void fixNumericLocaleInput(Iter begin, Iter end) {
 * Return iterator that would be the new end of the range [begin,end), if we
 * were to delete zeros in the end of string, but not the last zero before '.'.
 */
-template <typename Iter> Iter fixZerosInTheEnd(Iter begin, Iter end) {
+template <typename Iter>
+Iter fixZerosInTheEnd(Iter begin, Iter end, unsigned int precision) {
  for (; begin != end; --end) {
    if (*(end - 1) != '0') {
      return end;
    }
    // Don't delete the last zero before the decimal point.
-    if (begin != (end - 1) && *(end - 2) == '.') {
-      return end;
+    if (begin != (end - 1) && begin != (end - 2) && *(end - 2) == '.') {
+      if (precision) {
+        return end;
+      }
+      return end - 2;
    }
  }
  return end;
@@ -338,8 +342,7 @@ bool Reader::parse(std::istream& is, Value& root, bool collectComments) {

  // Since String is reference-counted, this at least does not
  // create an extra copy.
-  String doc;
-  std::getline(is, doc, static_cast<char> EOF);
+  String doc(std::istreambuf_iterator<char>(is), {});
  return parse(doc.data(), doc.data() + doc.size(), root, collectComments);
 }

@@ -1409,8 +1412,11 @@ bool OurReader::readToken(Token& token) {
    if (features_.allowSingleQuotes_) {
      token.type_ = tokenString;
      ok = readStringSingleQuote();
-      break;
-    } // else fall through
+    } else {
+      // If we don't allow single quotes, this is a failure case.
+      ok = false;
+    }
+    break;
  case '/':
    token.type_ = tokenComment;
    ok = readComment();
@@ -2152,7 +2158,7 @@ bool CharReaderBuilder::validate(Json::Value* invalid) const {
    if (valid_keys.count(key))
      continue;
    if (invalid)
-      (*invalid)[std::move(key)] = *si;
+      (*invalid)[key] = *si;
    else
      return false;
  }
@@ -2667,7 +2673,7 @@ Value::CZString::CZString(const CZString& other) {
  storage_.length_ = other.storage_.length_;
 }

-Value::CZString::CZString(CZString&& other)
+Value::CZString::CZString(CZString&& other) noexcept
    : cstr_(other.cstr_), index_(other.index_) {
  other.cstr_ = nullptr;
 }
@@ -2693,7 +2699,7 @@ Value::CZString& Value::CZString::operator=(const CZString& other) {
  return *this;
 }

-Value::CZString& Value::CZString::operator=(CZString&& other) {
+Value::CZString& Value::CZString::operator=(CZString&& other) noexcept {
  cstr_ = other.cstr_;
  index_ = other.index_;
  other.cstr_ = nullptr;
@@ -2841,7 +2847,7 @@ Value::Value(const Value& other) {
  dupMeta(other);
 }

-Value::Value(Value&& other) {
+Value::Value(Value&& other) noexcept {
  initBasic(nullValue);
  swap(other);
 }
@@ -2856,7 +2862,7 @@ Value& Value::operator=(const Value& other) {
  return *this;
 }

-Value& Value::operator=(Value&& other) {
+Value& Value::operator=(Value&& other) noexcept {
  other.swap(*this);
  return *this;
 }
@@ -3320,7 +3326,8 @@ void Value::resize(ArrayIndex newSize) {
  if (newSize == 0)
    clear();
  else if (newSize > oldSize)
-    this->operator[](newSize - 1);
+    for (ArrayIndex i = oldSize; i < newSize; ++i)
+      (*this)[i];
  else {
    for (ArrayIndex index = newSize; index < oldSize; ++index) {
      value_.map_->erase(index);
@@ -3781,14 +3788,15 @@ bool Value::isObject() const { return type() == objectValue; }
 Value::Comments::Comments(const Comments& that)
    : ptr_{cloneUnique(that.ptr_)} {}

-Value::Comments::Comments(Comments&& that) : ptr_{std::move(that.ptr_)} {}
+Value::Comments::Comments(Comments&& that) noexcept
+    : ptr_{std::move(that.ptr_)} {}

 Value::Comments& Value::Comments::operator=(const Comments& that) {
  ptr_ = cloneUnique(that.ptr_);
  return *this;
 }

-Value::Comments& Value::Comments::operator=(Comments&& that) {
+Value::Comments& Value::Comments::operator=(Comments&& that) noexcept {
  ptr_ = std::move(that.ptr_);
  return *this;
 }
@@ -3804,13 +3812,11 @@ String Value::Comments::get(CommentPlacement slot) const {
 }

 void Value::Comments::set(CommentPlacement slot, String comment) {
-  if (!ptr_) {
+  if (slot >= CommentPlacement::numberOfCommentPlacement)
+    return;
+  if (!ptr_)
    ptr_ = std::unique_ptr<Array>(new Array());
-  }
-  // check comments array boundry.
-  if (slot < CommentPlacement::numberOfCommentPlacement) {
-    (*ptr_)[slot] = std::move(comment);
-  }
+  (*ptr_)[slot] = std::move(comment);
 }

 void Value::setComment(String comment, CommentPlacement placement) {
@@ -4124,7 +4130,7 @@ Value& Path::make(Value& root) const {

 #if !defined(isnan)
 // IEEE standard states that NaN values will not compare to themselves
-#define isnan(x) (x != x)
+#define isnan(x) ((x) != (x))
 #endif

 #if !defined(__APPLE__)
@@ -4210,16 +4216,18 @@ String valueToString(double value, bool useSpecialFloats,

  buffer.erase(fixNumericLocale(buffer.begin(), buffer.end()), buffer.end());

-  // strip the zero padding from the right
-  if (precisionType == PrecisionType::decimalPlaces) {
-    buffer.erase(fixZerosInTheEnd(buffer.begin(), buffer.end()), buffer.end());
-  }
-
  // try to ensure we preserve the fact that this was given to us as a double on
  // input
  if (buffer.find('.') == buffer.npos && buffer.find('e') == buffer.npos) {
    buffer += ".0";
  }
+
+  // strip the zero padding from the right
+  if (precisionType == PrecisionType::decimalPlaces) {
+    buffer.erase(fixZerosInTheEnd(buffer.begin(), buffer.end(), precision),
+                 buffer.end());
+  }
+
  return buffer;
 }
 } // namespace
@@ -4231,11 +4239,11 @@ String valueToString(double value, unsigned int precision,

 String valueToString(bool value) { return value ? "true" : "false"; }

-static bool isAnyCharRequiredQuoting(char const* s, size_t n) {
+static bool doesAnyCharRequireEscaping(char const* s, size_t n) {
  assert(s || !n);

  return std::any_of(s, s + n, [](unsigned char c) {
-    return c == '\\' || c == '"' || !std::isprint(c);
+    return c == '\\' || c == '"' || c < 0x20 || c > 0x7F;
  });
 }

@@ -4326,12 +4334,12 @@ static void appendHex(String& result, unsigned ch) {
  result.append("\\u").append(toHex16Bit(ch));
 }

-static String valueToQuotedStringN(const char* value, unsigned length,
+static String valueToQuotedStringN(const char* value, size_t length,
                                   bool emitUTF8 = false) {
  if (value == nullptr)
    return "";

-  if (!isAnyCharRequiredQuoting(value, length))
+  if (!doesAnyCharRequireEscaping(value, length))
    return String("\"") + value + "\"";
  // We have to walk value and escape any special characters.
  // Appending to String is not efficient, but this should be rare.
@@ -4404,7 +4412,7 @@ static String valueToQuotedStringN(const char* value, unsigned length,
 }

 String valueToQuotedString(const char* value) {
-  return valueToQuotedStringN(value, static_cast<unsigned int>(strlen(value)));
+  return valueToQuotedStringN(value, strlen(value));
 }

 // Class Writer
@@ -4453,7 +4461,7 @@ void FastWriter::writeValue(const Value& value) {
    char const* end;
    bool ok = value.getString(&str, &end);
    if (ok)
-      document_ += valueToQuotedStringN(str, static_cast<unsigned>(end - str));
+      document_ += valueToQuotedStringN(str, static_cast<size_t>(end - str));
    break;
  }
  case booleanValue:
@@ -4476,8 +4484,7 @@ void FastWriter::writeValue(const Value& value) {
      const String& name = *it;
      if (it != members.begin())
        document_ += ',';
-      document_ += valueToQuotedStringN(name.data(),
-                                        static_cast<unsigned>(name.length()));
+      document_ += valueToQuotedStringN(name.data(), name.length());
      document_ += yamlCompatibilityEnabled_ ? ": " : ":";
      writeValue(value[name]);
    }
@@ -4522,7 +4529,7 @@ void StyledWriter::writeValue(const Value& value) {
    char const* end;
    bool ok = value.getString(&str, &end);
    if (ok)
-      pushValue(valueToQuotedStringN(str, static_cast<unsigned>(end - str)));
+      pushValue(valueToQuotedStringN(str, static_cast<size_t>(end - str)));
    else
      pushValue("");
    break;
@@ -4563,7 +4570,7 @@ void StyledWriter::writeValue(const Value& value) {
 }

 void StyledWriter::writeArrayValue(const Value& value) {
-  unsigned size = value.size();
+  size_t size = value.size();
  if (size == 0)
    pushValue("[]");
  else {
@@ -4572,7 +4579,7 @@ void StyledWriter::writeArrayValue(const Value& value) {
      writeWithIndent("[");
      indent();
      bool hasChildValue = !childValues_.empty();
-      unsigned index = 0;
+      ArrayIndex index = 0;
      for (;;) {
        const Value& childValue = value[index];
        writeCommentBeforeValue(childValue);
@@ -4595,7 +4602,7 @@ void StyledWriter::writeArrayValue(const Value& value) {
    {
      assert(childValues_.size() == size);
      document_ += "[ ";
-      for (unsigned index = 0; index < size; ++index) {
+      for (size_t index = 0; index < size; ++index) {
        if (index > 0)
          document_ += ", ";
        document_ += childValues_[index];
@@ -4740,7 +4747,7 @@ void StyledStreamWriter::writeValue(const Value& value) {
    char const* end;
    bool ok = value.getString(&str, &end);
    if (ok)
-      pushValue(valueToQuotedStringN(str, static_cast<unsigned>(end - str)));
+      pushValue(valueToQuotedStringN(str, static_cast<size_t>(end - str)));
    else
      pushValue("");
    break;
@@ -5014,8 +5021,8 @@ void BuiltStyledStreamWriter::writeValue(Value const& value) {
    char const* end;
    bool ok = value.getString(&str, &end);
    if (ok)
-      pushValue(valueToQuotedStringN(str, static_cast<unsigned>(end - str),
-                                     emitUTF8_));
+      pushValue(
+          valueToQuotedStringN(str, static_cast<size_t>(end - str), emitUTF8_));
    else
      pushValue("");
    break;
@@ -5038,8 +5045,8 @@ void BuiltStyledStreamWriter::writeValue(Value const& value) {
        String const& name = *it;
        Value const& childValue = value[name];
        writeCommentBeforeValue(childValue);
-        writeWithIndent(valueToQuotedStringN(
-            name.data(), static_cast<unsigned>(name.length()), emitUTF8_));
+        writeWithIndent(
+            valueToQuotedStringN(name.data(), name.length(), emitUTF8_));
        *sout_ << colonSymbol_;
        writeValue(childValue);
        if (++it == members.end()) {
@@ -5273,7 +5280,7 @@ bool StreamWriterBuilder::validate(Json::Value* invalid) const {
    if (valid_keys.count(key))
      continue;
    if (invalid)
-      (*invalid)[std::move(key)] = *si;
+      (*invalid)[key] = *si;
    else
      return false;
  }
--- a/doc/building.md
+++ b/doc/building.md
@@ -139,18 +139,3 @@ powershell -Command Set-Location -Path %OPENCON%\src\cascadia\CascadiaPackage\Ap
 (yes, the cmd version is just calling powershell to do the powershell version. Too lazy to convert the rest by hand, I'm already copying from `.vscode\tasks.json`)

 Building the package from VS generates the loose layout to begin with, and then registers the loose manifest, skipping the msix stop. It's a lot faster than the commandline inner loop here, unfortunately.
-
-### 2022 Update
-
-The following command can be used to build the terminal package, and then deploy it.
-
-```cmd
-pushd %OPENCON%\src\cascadia\CascadiaPackage
-bx
-"C:\Program Files\Microsoft Visual Studio\2022\Preview\Common7\IDE\DeployAppRecipe.exe" bin\%ARCH%\%_LAST_BUILD_CONF%\CascadiaPackage.build.appxrecipe
-popd
-```
-
-The `bx` will build just the Terminal package, critically, populating the `CascadiaPackage.build.appxrecipe` file. Once that's been built, then the `DeployAppRecipe.exe` command can be used to deploy a loose layout in the same way that Visual Studio does.
-
-Notably, this method of building the Terminal package can't leverage the FastUpToDate check in Visual Studio, so the builds end up being considerably slower for the whole package, as cppwinrt does a lot of work before confirming that it's up to date and doing nothing.
--- a/doc/cascadia/profiles.schema.json
+++ b/doc/cascadia/profiles.schema.json
@@ -14,12 +14,6 @@
      "type": "string",
      "format": "color"
    },
-    "ColorOrIndex": {
-      "default": "#",
-      "pattern": "^(?:#[A-Fa-f0-9]{3}(?:[A-Fa-f0-9]{3})?|i[A-Fa-f0-9]{2})$",
-      "type": "string",
-      "format": "color"
-    },
    "Coordinates": {
      "pattern": "^(-?\\d+)?(,\\s?(-?\\d+)?)?$",
      "type": "string"
@@ -64,20 +58,20 @@
      "default": "",
      "description": "Sets the file location of the sound played when the application emits a BEL character. If the path is invalid no sound will be played. This property also accepts an array of sounds and the terminal will pick one at random.",
      "oneOf": [
-        {
-          "type": [
-            "string",
-            "null"
-          ]
-        },
-        {
-          "type": "array",
-          "items": {
-            "type": "string"
-          }
+      {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      {
+        "type": "array",
+        "items": {
+          "type": "string"
        }
+      }
      ]
-    },
+    }, 
    "AppearanceConfig": {
      "properties": {
        "colorScheme": {
@@ -203,7 +197,7 @@
        },
        "intenseTextStyle": {
          "default": "bright",
-          "description": "Controls how 'intense' text is rendered. Values are \"bold\", \"bright\", \"all\" and \"none\"",
+          "description": "Controls how 'intense' text is rendered when unfocused. Values are \"bold\", \"bright\", \"all\" and \"none\"",
          "enum": [
            "none",
            "bold",
@@ -213,14 +207,8 @@
          "type": "string"
        },
        "adjustIndistinguishableColors": {
-          "default": "never",
-          "description": "Setting to adjust the foreground color to make it more visible, based on the background color. When set to \"indexed\", we will only adjust the colors if they came from the color scheme. Other possible values are \"never\" and \"always\".",
-          "enum": [
-            "never",
-            "indexed",
-            "always"
-          ],
-          "type": "string"
+          "description": "When set to true, we will (when necessary) adjust the foreground color to make it more visible, based on the background color.",
+          "type": "boolean"
        },
        "experimental.retroTerminalEffect": {
          "description": "When set to true, enable retro terminal effects when unfocused. This is an experimental feature, and its continued existence is not guaranteed.",
@@ -244,7 +232,7 @@
          "default": 12,
          "description": "Size of the font in points.",
          "minimum": 1,
-          "type": "number"
+          "type": "integer"
        },
        "weight": {
          "default": "normal",
@@ -312,7 +300,6 @@
      "enum": [
        "adjustFontSize",
        "clearBuffer",
-        "closeOtherPanes",
        "closeOtherTabs",
        "closePane",
        "closeTab",
@@ -321,7 +308,6 @@
        "commandPalette",
        "copy",
        "duplicateTab",
-        "expandSelectionToWord",
        "exportBuffer",
        "find",
        "findMatch",
@@ -384,7 +370,6 @@
        "scrollToMark",
        "clearMark",
        "clearAllMarks",
-        "experimental.colorSelection",
        "unbound"
      ],
      "type": "string"
@@ -845,43 +830,6 @@
        }
      ]
    },
-    "ColorSelectionAction": {
-      "description": "Arguments corresponding to a Color Selection Action",
-      "allOf": [
-        {
-          "$ref": "#/$defs/ShortcutAction"
-        },
-        {
-          "properties": {
-            "action": {
-              "type": "string",
-              "const": "experimental.colorSelection"
-            },
-            "matchMode": {
-              "type": "string",
-              "default": "none",
-              "description": "Specifies if only the selected text should be colored (0), or all instances of selected text (case-insensitive) (1).",
-              "enum": [
-                "none",
-                "all"
-              ]
-            },
-            "foreground": {
-              "$ref": "#/$defs/ColorOrIndex",
-              "type": "string",
-              "default": "",
-              "description": "The foreground color to use, as an RGB value (\"#rrggbb\"), or color index (\"iNN\"). If left unspecified it falls back to the default text foreground color."
-            },
-            "background": {
-              "$ref": "#/$defs/ColorOrIndex",
-              "type": "string",
-              "default": "",
-              "description": "The background color to use, as an RGB value (\"#rrggbb\"), or color index (\"iNN\"). If left unspecified it falls back to the default text background color."
-            }
-          }
-        }
-      ]
-    },
    "OpenSettingsAction": {
      "description": "Arguments corresponding to a Open Settings Action",
      "allOf": [
@@ -1657,9 +1605,6 @@
            {
              "$ref": "#/$defs/AdjustOpacityAction"
            },
-            {
-              "$ref": "#/$defs/ColorSelectionAction"
-            },
            {
              "type": "null"
            }
@@ -1782,9 +1727,14 @@
          "description": "When set to true, URLs will be detected by the Terminal. This will cause URLs to underline on hover and be clickable by pressing Ctrl.",
          "type": "boolean"
        },
-        "experimental.enableColorSelection": {
+        "experimental.autoMarkPrompts": {
          "default": false,
-          "description": "When set to true, adds preset \"Color Selection\" actions (keybindings) to allow colorizing selected text via keystroke, similar to the legacy conhost EnableColorSelection feature (such as alt+6 to color the selection red).",
+          "description": "When set to true, prompts will automatically be marked.",
+          "type": "boolean"
+        },
+        "experimental.showMarksOnScrollbar": {
+          "default": false,
+          "description": "When set to true, marks added to the buffer via the addMark action will appear on the scrollbar.",
          "type": "boolean"
        },
        "disableAnimations": {
@@ -2018,20 +1968,6 @@
            "useAnyExisting"
          ],
          "type": "string"
-        },
-        "newTabPosition": {
-          "default": "afterLastTab",
-          "description": "Position of newly created tabs. Possible values are \"afterLastTab\" and \"afterCurrentTab\".",
-          "enum": [
-            "afterLastTab",
-            "afterCurrentTab"
-          ],
-          "type": "string"
-        },
-        "autoHideWindow": {
-          "default": false,
-          "description": "If enabled, Terminal window will be hidden as soon as it loses focus.",
-          "type": "boolean"
        }
      },
      "required": [
@@ -2215,11 +2151,6 @@
          "default": false,
          "description": "When true, this profile should always open in an elevated context. If the window isn't running as an Administrator, then a new elevated window will be created."
        },
-        "experimental.autoMarkPrompts": {
-          "default": false,
-          "description": "When set to true, prompts will automatically be marked.",
-          "type": "boolean"
-        },
        "experimental.connection.passthroughMode": {
          "description": "When set to true, directs the PTY for this connection to use pass-through mode instead of the original Conhost PTY simulation engine. This is an experimental feature, and its continued existence is not guaranteed.",
          "type": "boolean"
@@ -2228,19 +2159,14 @@
          "description": "When set to true, enable retro terminal effects. This is an experimental feature, and its continued existence is not guaranteed.",
          "type": "boolean"
        },
-        "experimental.showMarksOnScrollbar": {
-          "default": false,
-          "description": "When set to true, marks added to the buffer via the addMark action will appear on the scrollbar.",
-          "type": "boolean"
-        },
        "experimental.pixelShaderPath": {
          "description": "Use to set a path to a pixel shader to use with the Terminal. Overrides `experimental.retroTerminalEffect`. This is an experimental feature, and its continued existence is not guaranteed.",
          "type": "string"
        },
-        "useAtlasEngine": {
-          "description": "Windows Terminal 1.16 and later ship with a new, performant text renderer. Set this to false to revert back to the old text renderer.",
+        "experimental.useAtlasEngine": {
+          "description": "Enable using the experimental new rendering engine for this profile. This is an experimental feature, and its continued existence is not guaranteed.",
          "type": "boolean",
-          "default": true
+          "default": false
        },
        "fontFace": {
          "default": "Cascadia Mono",
@@ -2252,7 +2178,7 @@
          "default": 12,
          "description": "[deprecated] Define 'size' within the 'font' object instead.",
          "minimum": 1,
-          "type": "number",
+          "type": "integer",
          "deprecated": true
        },
        "fontWeight": {
@@ -2283,6 +2209,17 @@
          ],
          "deprecated": true
        },
+        "intenseTextStyle": {
+          "default": "bright",
+          "description": "Controls how 'intense' text is rendered. Values are \"bold\", \"bright\", \"all\" and \"none\"",
+          "enum": [
+            "none",
+            "bold",
+            "bright",
+            "all"
+          ],
+          "type": "string"
+        },
        "foreground": {
          "$ref": "#/$defs/Color",
          "default": "#cccccc",
@@ -2336,22 +2273,15 @@
          ]
        },
        "adjustIndistinguishableColors": {
-          "default": "never",
-          "description": "Setting to adjust the foreground color to make it more visible, based on the background color. When set to \"indexed\", we will only adjust the colors if they came from the color scheme. Other possible values are \"never\" and \"always\".",
-          "enum": [
-            "never",
-            "indexed",
-            "always"
-          ],
-          "type": "string"
+          "description": "When set to true, we will (when necessary) adjust the foreground color to make it more visible, based on the background color.",
+          "type": "boolean"
        },
        "scrollbarState": {
          "default": "visible",
          "description": "Defines the visibility of the scrollbar.",
          "enum": [
            "visible",
-            "hidden",
-            "always"
+            "hidden"
          ],
          "type": "string"
        },
@@ -2385,7 +2315,10 @@
        },
        "startingDirectory": {
          "description": "The directory the shell starts in when it is loaded.",
-          "type": "string"
+          "type": [
+            "string",
+            "null"
+          ]
        },
        "suppressApplicationTitle": {
          "description": "When set to true, tabTitle overrides the default title of the tab and any title change messages from the application will be suppressed. When set to false, tabTitle behaves as normal.",
--- a/doc/feature_flags.md
+++ b/doc/feature_flags.md
@@ -5,7 +5,7 @@ Feature flags are controlled by an XML document stored at `src/features.xml`.
 ## Example Document

 ```xml
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0"?>
 <featureStaging xmlns="http://microsoft.com/TilFeatureStaging-Schema.xsd">
    <feature>
        <!-- This will produce Feature_XYZ::IsEnabled() and TIL_FEATURE_XYZ_ENABLED (preprocessor) -->
--- a/doc/specs/#1790
+++ b/doc/specs/#1790
@@ -74,7 +74,7 @@ Should not affect security.

 ### Reliability

-Aside from additional parsing required for the settings file (which inherently offers more locations for parsing to fail), we need to be careful about badly formed/nonexistent feature tags or axes specified in the user-defined dictionaries. We must make sure to ignore such declarations (perhaps alongside emitting a warning to the user) and only apply those that are correctly formed and exist.
+Aside from additional parsing required for the settings file (which inherently offers more locations for parsing to fail), we need to be careful about badly formed/non-existent feature tags or axes specified in the user-defined dictionaries. We must make sure to ignore such declarations (perhaps alongside emitting a warning to the user) and only apply those that are correctly formed and exist.

 ### Compatibility

--- a/Terminal/spec.md
+++ b/Terminal/spec.md
@@ -138,7 +138,7 @@ The delegation repeats the same dance as above as well:

 The terminal will be its own complete presentation and input solution on top of a ConPTY connection, separating the concerns between API servicing and the user experience.

-Today the Terminal knows how to start and then launches a ConPTY under it. The Terminal will need to be updated to accept a preexisting ConPTY connection on launch (or when the multi-process model arrives, as an inbound connection), and connect that to a new tab/pane instead of using the `winconpty.lib` libraries to make its own.
+Today the Terminal knows how to start and then launches a ConPTY under it. The Terminal will need to be updated to accept a pre-existing ConPTY connection on launch (or when the multi-process model arrives, as an inbound connection), and connect that to a new tab/pane instead of using the `winconpty.lib` libraries to make its own.

 For now, I'm considering only the fresh-start scenario.
 - The Terminal will have to detect the inbound connection through ~~its argument parsing (or through~~ a new entrypoint in the COM alternative ~~)~~ and store the PTY in/out/signal handles for that connection in the startup arguments information
--- a/Selection/Keyboard-Selection.md
+++ b/Selection/Keyboard-Selection.md
@@ -1,281 +0,0 @@
---
-author: Carlos Zamora @carlos-zamora
-created on: 2019-08-30
-last updated: 2022-07-06
-issue id: 715
---
-
-# Keyboard Selection
-
-## Abstract
-
-This spec describes a new set of key bindings that allows the user to create and update a selection without the use of a mouse or stylus.
-
-## Inspiration
-
-ConHost allows the user to modify a selection using the keyboard. Holding `Shift` allows the user to move the second selection endpoint in accordance with the arrow keys. The selection endpoint updates by one cell per key event, allowing the user to refine the selected region.
-
-### Creating a selection
-Mark Mode is a ConHost feature that allows the user to create a selection using only the keyboard. In CMD, pressing <kbd>ctrl+m</kbd> enters mark mode. The current cursor position becomes a selection endpoint. The user can use the arrow keys to move that endpoint. While the user then holds <kbd>shift</kbd>, the selection endpoint ('start') is anchored to it's current position, and the arrow keys move the other selection endpoint ('end').
-
-Additionally, pressing <kbd>shift+arrow</kbd> also initiates a selection, but it anchors the first selection endpoint to the cursor position.
-
-Other terminal emulators have different approaches to this feature. iTerm2, for example, has Copy Mode (documentation [linked here](https://iterm2.com/documentation-copymode.html)). Here, <kbd>cmd+shift+c</kbd> makes the current cursor position become a selection endpoint. The arrow keys can be used to move that endpoint. However, unlike Mark Mode, a key binding <kbd>c+space</kbd> is used to change the start/stop selecting. The first time it's pressed, the 'start' endpoint is anchored. The second time it's pressed, the 'end' endpoint is set. After this, you can still move a cursor, but the selection persists until a new selection is created (either by pressing the key binding again, or using the mouse).
-
-Though tmux is not a terminal emulator, it does also have Copy Mode that behaves fairly similarly to that of iTerm2's.
-
-
-## Solution Design
-
-The fundamental solution design for keyboard selection is that the responsibilities between the Terminal Control and Terminal Core must be very distinct. The Terminal Control is responsible for handling user interaction and directing the Terminal Core to update the selection. The Terminal Core will need to update the selection according to the direction of the Terminal Control. Terminal Core maintains the state of the selection.
-
-Relatively recently, TerminalControl was split into `TerminalControl`, `ControlInteractivity`, and `ControlCore`. Changes made to `ControlInteractivity`, `ControlCore`, and below propagate functionality to all consumers, meaning that the WPF terminal would benefit from these changes with no additional work required.
-
-### Fundamental Terminal Control Changes
-
-`ControlCore::TrySendKeyEvent()` is responsible for handling the key events after key bindings are dealt with in `TermControl`. At the time of writing this spec, there are 2 cases handled in this order:
- Clear the selection (except in a few key scenarios)
- Send Key Event
-
-The first branch will be updated to _modify_ the selection instead of usually _clearing_ it. This will happen by converting the key event into parameters to forward to `TerminalCore`, which then updates the selection appropriately.
-
-#### Abandoned Idea: Make keyboard selection a collection of standard keybindings
-One idea is to introduce an `updateSelection` action that conditionally works if a selection is active (similar to the `copy` action). For these key bindings, if there is no selection, the key events are forwarded to the application.
-
-Thanks to Keybinding Args, there would only be 1 new command:
-| Action | Keybinding Args | Description |
-|--|--|--|
-| `updateSelection` |                                                | If a selection exists, moves the last selection endpoint. |
-|                       | `Enum direction { up, down, left, right }` | The direction the selection will be moved in. |
-|                       | `Enum mode { char, word, view, buffer }`   | The context for which to move the selection endpoint to. (defaults to `char`) |
-
-
-By default, the following keybindings will be set:
-```JS
-// Character Selection
-{ "command": {"action": "updateSelection", "direction": "left",  "mode": "char" }, "keys": "shift+left" },
-{ "command": {"action": "updateSelection", "direction": "right", "mode": "char" }, "keys": "shift+right" },
-{ "command": {"action": "updateSelection", "direction": "up",    "mode": "char" }, "keys": "shift+up" },
-{ "command": {"action": "updateSelection", "direction": "down",  "mode": "char" }, "keys": "shift+down" },
-
-// Word Selection
-{ "command": {"action": "updateSelection", "direction": "left",  "mode": "word" }, "keys": "ctrl+shift+left" },
-{ "command": {"action": "updateSelection", "direction": "right", "mode": "word" }, "keys": "ctrl+shift+right" },
-
-// Viewport Selection
-{ "command": {"action": "updateSelection", "direction": "left",  "mode": "view" }, "keys": "shift+home" },
-{ "command": {"action": "updateSelection", "direction": "right", "mode": "view" }, "keys": "shift+end" },
-{ "command": {"action": "updateSelection", "direction": "up",    "mode": "view" }, "keys": "shift+pgup" },
-{ "command": {"action": "updateSelection", "direction": "down",  "mode": "view" }, "keys": "shift+pgdn" },
-
-// Buffer Corner Selection
-{ "command": {"action": "updateSelection", "direction": "up",    "mode": "buffer" }, "keys": "ctrl+shift+home" },
-{ "command": {"action": "updateSelection", "direction": "down",  "mode": "buffer" }, "keys": "ctrl+shift+end" },
-```
-These are in accordance with ConHost's keyboard selection model.
-
-This idea was abandoned due to several reasons:
-1. Keyboard selection should be a standard way to interact with a terminal across all consumers (i.e. WPF control, etc.)
-2. There isn't really another set of key bindings that makes sense for this. We already hardcoded <kbd>ESC</kbd> as a way to clear the selection. This is just an extension of that.
-3. Adding 12 conditionally effective key bindings takes the spot of 12 potential non-conditional key bindings. It would be nice if a different key binding could be set when the selection is not active, but that makes the settings design much more complicated.
-4. 12 new items in the command palette is also pretty excessive.
-5. If proven wrong when this is in WT Preview, we can revisit this and make them customizable then. It's better to add the ability to customize it later than take it away.
-
-#### Abandoned Idea: Make keyboard selection a simulation of mouse selection
-It may seem that some effort can be saved by making the keyboard selection act as a simulation of mouse selection. There is a union of mouse and keyboard activity that can be represented in a single set of selection motion interfaces that are commanded by the TermControl's Mouse/Keyboard handler and adapted into appropriate motions in the Terminal Core.
-
-However, the mouse handler operates by translating a pixel coordinate on the screen to a text buffer coordinate. This would have to be rewritten and the approach was deemed unworthy.
-
-
-### Fundamental Terminal Core Changes
-
-The Terminal Core will need to expose a `UpdateSelection()` function that is called by the keybinding handler. The following parameters will need to be passed in:
- `enum SelectionDirection`: the direction that the selection endpoint will attempt to move to. Possible values include `Up`, `Down`, `Left`, and `Right`.
- `enum SelectionExpansion`: the selection expansion mode that the selection endpoint will adhere to. Possible values include `Char`, `Word`, `View`, `Buffer`.
-
-#### Moving by Cell
-For `SelectionExpansion = Char`, the selection endpoint will be updated according to the buffer's output pattern. For **horizontal movements**, the selection endpoint will attempt to move left or right. If a viewport boundary is hit, the endpoint will wrap appropriately (i.e.: hitting the left boundary moves it to the last cell of the line above it).
-
-For **vertical movements**, the selection endpoint will attempt to move up or down. If a **viewport boundary** is hit and there is a scroll buffer, the endpoint will move and scroll accordingly by a line.
-
-If a **buffer boundary** is hit, the endpoint will not move. In this case, however, the event will still be considered handled.
-
-**NOTE**: An important thing to handle properly in all cases is wide glyphs. The user should not be allowed to select a portion of a wide glyph; it should be all or none of it. When calling `_ExpandWideGlyphSelection` functions, the result must be saved to the endpoint.
-
-#### Moving by Word
-For `SelectionExpansion = Word`, the selection endpoint will also be updated according to the buffer's output pattern, as above. However, the selection will be updated in accordance with "chunk selection" (performing a double-click and dragging the mouse to expand the selection). For **horizontal movements**, the selection endpoint will be updated according to the `_ExpandDoubleClickSelection` functions. The result must be saved to the endpoint. As before, if a boundary is hit, the endpoint will wrap appropriately. See [Future Considerations](#FutureConsiderations) for how this will interact with line wrapping.
-
-For **vertical movements**, the movement is a little more complicated than before. The selection will still respond to buffer and viewport boundaries as before. If the user is trying to move up, the selection endpoint will attempt to move up by one line, then selection will be expanded leftwards. Alternatively, if the user is trying to move down, the selection endpoint will attempt to move down by one line, then the selection will be expanded rightwards.
-
-#### Moving by Viewport
-For `SelectionExpansion = View`, the selection endpoint will be updated according to the viewport's height. Horizontal movements will be updated according to the viewport's width, thus resulting in the endpoint being moved to the left/right boundary of the viewport.
-
-#### Moving by Buffer
-
-For `SelectionExpansion = Buffer`, the selection endpoint will be moved to the beginning or end of all the text within the buffer. If moving up or left, set the position to 0,0 (the origin of the buffer). If moving down or right, set the position to the last character in the buffer.
-
-
-**NOTE**: In all cases, horizontal movements attempting to move past the left/right viewport boundaries result in a wrap. Vertical movements attempting to move past the top/bottom viewport boundaries will scroll such that the selection is at the edge of the screen. Vertical movements attempting to move past the top/bottom buffer boundaries will be clamped to be within buffer boundaries.
-
-**NOTE**: If `copyOnSelect` is enabled, we need to make sure we **DO NOT** update the clipboard on every change in selection. The user must explicitly choose to copy the selected text from the buffer.
-
-### Mark Mode
-
-Mark Mode is a mode where the user can create and modify a selection using only the keyboard.
-
-When no selection is present, the user may use the `markMode` action to enter mark mode. Upon doing so, a selection will be created at the current cursor position.
-
-When in mark mode, the user may...
- press <kbd>ESC</kbd> to clear the selection and exit mark mode
- invoke the `markMode` action to exit mark mode
- invoke the `copy` action (this includes right-clicking the terminal) to copy the selected text, clear the selection, and exit mark mode
- move the cursor in the following ways:
-    - arrow keys --> move by character
-    - ctrl + left/right --> move by word 
-    - ctrl + home/end --> move to the beginning/end of the buffer
-    - home/end --> move to the beginning/end of the line respectively
-    - pgup/pgdn --> move up/down by viewport respectively
- expand the selection in the following ways:
-    - shift + arrow keys --> move the "end" endpoint by character
-    - ctrl + shift + left/right --> move the "end" endpoint by word 
-    - ctrl + shift + home/end --> move the "end" endpoint to the beginning/end of the buffer
-    - shift + home/end --> move the "end" endpoint to the beginning/end of the line respectively
-    - shift + pgup/pgdn --> move the "end" endpoint up/down by viewport respectively
-
-As with mouse selections, keybindings are still respected and pressing a key that is not bound to a keybinding (or mentioned above) will clear the selection and exit mark mode.
-
-#### Corner cases
-
- In mark mode, if a selection was created via the keyboard, moving the cursor moves at the "end" endpoint. This is consistent with conhost.
- If a user creates a selection using the mouse, then enters mark mode, mark mode inherits the existing selection as if it was made using the keyboard.
- If `copyOnSelect` is enabled, the selection is copied when the selection operation is "complete". Thus, the selection is copied when the `copy` keybinding is used or the selection is copied using the mouse.
- If `copyOnSelect` is enabled, `ESC` is interpreted as "cancelling" the selection, so nothing is copied. Keys that generate input are also interpreted as "cancelling" the selection. Only the `copy` keybinding or copying using the mouse is considered "completing" the selection operation, and copying the content to the clipboard.
-
-**NOTE** - Related to #3884:
-    If the user has chosen to have selections persist after a copy operation, the selection created by Copy Mode is treated no differently than one created with the mouse. The selection will persist after a copy operation. However, if the user exits Copy Mode in any of the other situations, the selection is cleared.
-
-#### Block Selection
-A user can normally create a block selection by holding <kbd>alt</kbd> then creating a selection.
-
-If the user is in Mark Mode, and desires to make a block selection, they can use the `toggleBlockSelection()` action. `toggleBlockSelection()` takes an existing selection, and transforms it into a block selection (or vice-versa).
-
-All selections created in Mark Mode will have block selection disabled by default.
-
-#### Rendering during Copy Mode
-Since we are just moving the selection endpoints, rendering the selection rects should operate normally. We need to ensure that we still scroll when we move a selection point past the top/bottom of the viewport.
-
-In ConHost, output would be paused when a selection was present. Windows Terminal does not pause the output when a selection is present, however, it does not scroll to the new output.
-
-#### Interaction with Mouse Selection
-If a selection exists, the user is basically already in Copy Mode. The user should be modifying the "end" endpoint of the selection when using the `updateSelection()` bindings. The existing selection should not be cleared (contrary to prior behavior). However, the half-y-beam will not be drawn. Once the user presses the `copyMode` or `moveSelectionPoint` keybinding, the half-y-beam is drawn on the targeted endpoint (which will then be "start").
-
-During Copy Mode, if the user attempts to create a selection using the mouse, any existing selections are cleared and the mouse creates a selection normally. However, contrary to prior behavior, the user will still be in Copy Mode. The target endpoint being modified in Copy Mode, however, will be the "end" endpoint of the selection, instead of the cursor (as explained earlier in the flowchart).
-
-
-#### Abandoned Idea: Copy Mode
-Copy Mode is a more complex version of Mark Mode that is intended to provide a built-in way to switch the active selection endpoint. This idea was abandoned because we would then run into a user education issue. Rather than reinventing the wheel, selection should feel natural like that of a text editor, and any diversion from that model should be introduced separately (i.e. keybindings). Doing so ensures that users can "hit the ground running" when trying to make a selection, but won't be hindered by new functionality that is available.
-
-Copy Mode is a mode where the user can create and modify a selection using only the keyboard. The following flowchart covers how the new `copymode()` action works:
-
-![Copy Mode Flowchart][images/CopyModeFlowchart.png]
-
-**NOTE**: `copyMode()` refers to the action, whereas `updateSelection()` refers to the underlying function that is being called in the code.
-
-If a selection is not active, a "start" and "end" selection point is created at the cursor position. `updateSelection()` calls then move "start" and "end" together as one position.
-
-Invoking `copyMode()` again, will then anchor "start" (meaning that it will be kept in place). Subsequent `updateSelection()` calls move the "end" selection point.
-
-Invoking `copyMode()` essentially cycles between which selection point is targeted.
-
-## UI/UX Design
-
-### Key Bindings
-
-| Action | Keybinding Args | Description |
-|--|--|--|
-| `selectAll`                    | none | Select the entire text buffer. |
-| `markMode`                     | none | Toggle mark mode. If no selection exists, create a selection at the cursor position. Otherwise, use the existing selection as one in mark mode. |
-| `toggleBlockSelection`         | none | Transform the existing selection between a block selection and a line selection.  |
-| `switchSelectionEndpoint`      | none | If a selection is present, switch which selection endpoint is targeted when in mark mode or another keyboard selection mode (i.e. modified a mouse selection using the keyboard). |
-
-By default, the following key binding will be set:
-```JS
-{ "command": "selectAll", "keys": "ctrl+shift+a" },
-
-// Copy Mode
-{ "command": "copyMode", "keys": "ctrl+shift+m" },
-{ "command": "toggleBlockSelection" },
-{ "command": "switchSelectionEndpoint" },
-```
-
-### Selection Markers
-
-A y-beam will be used to identify which selection endpoint is currently being moved when in mark mode. The y-beam will match the cursor color and the font size so that it essentially fills a cell in the buffer.
-
-When we're moving the cursor (this happens when mark mode is entered from no existing selection), a full y-beam will be displayed at the cursor position.
-
-![Y-Beam Example](./images/Y-Beam.png)
-
-When <kbd>shift</kbd> is held, we're expanding the selection. In this case, the y-beam will be split, and the relevant half will be rendered on the active endpoint functioning as a selection marker.
-
-![Separated Y-Beam Example](./images/Half-Y-Beam.png)
-
-If the selection is up against the end (or beginning) of the line, the selection marker can't be rendered normally because there is no space to render it off the side of the terminal. Instead, the selection marker will be horizontally flipped. Alternatively, it can be rendered on the next available cell (i.e. end of line translates to the beginning of the next line), but that would cause issues when the selection is positioned at the beginning or end of the buffer, thus the idea was abandoned.
-
-If the active endpoint crosses the inactive endpoint, the selection marker will be flipped. In a sense, the flag will always point away from the selection.
-
-The y-beam doesn't make as much sense for block selections, so instead an L-shaped marker will be placed hugging the corner of the active selection endpoint.
-
-**NOTE:** Both half y-beams could have been presented as shown in the image below. This idea was omitted because then there is no indication for which half y-beam is currently focused.
-
-![Both Separated Y-Beams Example](./images/Split-Y-Beam.png)
-
-### Miscellaneous
-
-When mark mode is enabled, the cursor will stop blinking.
-
-## Capabilities
-
-### Accessibility
-
-Using the keyboard is generally a more accessible experience than using the mouse. Being able to modify a selection by using the keyboard is a good first step towards making selecting text more accessible.
-
-We will be expected to send "selection changed" events via UIA every time the cursor moves or selection updates (both are considered the same event).
-
-### Security
-
-N/A
-
-### Reliability
-
-With regards to the Terminal Core, the newly introduced code should rely on already existing and tested code. Thus no crash-related bugs are expected.
-
-With regards to Terminal Control and the settings model, crash-related bugs are not expected. However, ensuring that the selection is updated and cleared in general use-case scenarios must be ensured.
-
-### Compatibility
-
-N/A
-
-### Performance, Power, and Efficiency
-
-N/A
-
-## Potential Issues
-
-### Grapheme Clusters
-When grapheme cluster support is inevitably added to the Text Buffer, moving by "cell" is expected to move by "character" or "cluster". This is similar to how wide glyphs are handled today. Either all of it is selected, or none of it.
-
-### Circling the buffer
-As usual, if the buffer is circling, the selection should be updated to follow the content (and "scroll up" appropriately).
-
-In the event that one endpoint "scrolls" off the buffer, we must clamp "start" to the buffer origin. Conversely, in the event that both endpoints "scroll" off the buffer, the selection must be considered cleared.
-
-## Future considerations
-
-### Word Selection Wrap
-At the time of writing this spec, expanding or moving by word is interrupted by the beginning or end of the line, regardless of the wrap flag being set. In the future, selection and the accessibility models will respect the wrap flag on the text buffer.
-
-
-## Resources
-
- https://blogs.windows.com/windowsdeveloper/2014/10/07/console-improvements-in-the-windows-10-technical-preview/
--- a/Selection/images/CopyModeFlowchart.png
+++ b/Selection/images/CopyModeFlowchart.png
--- a/Selection/images/CopyModeFlowchart.vsdx
+++ b/Selection/images/CopyModeFlowchart.vsdx
--- a/Selection/images/Half-Y-Beam.png
+++ b/Selection/images/Half-Y-Beam.png
--- a/Selection/images/Split-Y-Beam.png
+++ b/Selection/images/Split-Y-Beam.png
--- a/Selection/images/Y-Beam.png
+++ b/Selection/images/Y-Beam.png
--- a/doc/specs/#754
+++ b/doc/specs/#754
@@ -659,7 +659,7 @@ loading until that generator is complete.
 However, if the user disables that generator entirely, we'll never display that
 profile to the user, even if they've done that setup before.

-So the trade-off with this design is that nonexistent dynamic profiles will
+So the trade-off with this design is that non-existent dynamic profiles will
 never roam to machines where they don't exist and aren't valid, but the
 generators _must_ be enabled to use the dynamic profiles.

--- a/doc/specs/#885
+++ b/doc/specs/#885
@@ -204,7 +204,7 @@ We need a way to determine where an action came from to minimize how many action
         - Construct the `Command` (basically the `Command::LayerJson` we have today)
         - Add it to the `ActionMap`
           - this should update the internal state of `ActionMap` appropriately
-           - if the newly added key chord conflicts with a preexisting one,
+           - if the newly added key chord conflicts with a pre-existing one,
              redirect `_KeyMap` to the newly added `Command` instead,
              and update the conflicting one.
 2. Load settings.json
--- a/doc/specs/Extensions.md
+++ b/doc/specs/Extensions.md
@@ -1,58 +0,0 @@
---
-author: <Christopher> <Nguyen> <chrnguyen-msft>/<chrnguyen@microsoft.com>
-created on: <2022-09-28>
-last updated: <yyyy-mm-dd>
-issue id: <github issue id>
---
-
-# Extensions
-
-## Abstract
-
-[comment]: # Outline what this spec describes
-
-## Inspiration
-
-[comment]: # What were the drivers/inspiration behind the creation of this spec.
-
-## Solution Design
-
-[comment]: # Outline the design of the solution. Feel free to include ASCII-art diagrams, etc.
-
-## UI/UX Design
-
-[comment]: # What will this fix/feature look like? How will it affect the end user?
-
-## Capabilities
-
-[comment]: # Discuss how the proposed fixes/features impact the following key considerations:
-
-### Accessibility
-
-[comment]: # How will the proposed change impact accessibility for users of screen readers, assistive input devices, etc.
-
-### Security
-
-[comment]: # How will the proposed change impact security?
-
-### Reliability
-
-[comment]: # Will the proposed change improve reliability? If not, why make the change?
-
-### Compatibility
-
-[comment]: # Will the proposed change break existing code/behaviors? If so, how, and is the breaking change "worth it"?
-
-### Performance, Power, and Efficiency
-
-## Potential Issues
-
-[comment]: # What are some of the things that might cause problems with the fixes/features proposed? Consider how the user might be negatively impacted.
-
-## Future considerations
-
-[comment]: # What are some of the things that the fixes/features might unlock in the future? Does the implementation of this spec enable scenarios?
-
-## Resources
-
-[comment]: # Be sure to add links to references, resources, footnotes, etc.
--- a/doc/specs/Keyboard-Selection.md
+++ b/doc/specs/Keyboard-Selection.md
@@ -0,0 +1,171 @@
+---
+author: Carlos Zamora @carlos-zamora
+created on: 2019-08-30
+last updated: 2021-09-17
+issue id: 715
+---
+
+# Keyboard Selection
+
+## Abstract
+
+This spec describes a new set of non-configurable keybindings that allows the user to update a selection without the use of a mouse or stylus.
+
+## Inspiration
+
+ConHost allows the user to modify a selection using the keyboard. Holding `Shift` allows the user to move the second selection endpoint in accordance with the arrow keys. The selection endpoint updates by one cell per key event, allowing the user to refine the selected region.
+
+Mark mode allows the user to create a selection using only the keyboard, then edit it as mentioned above.
+
+
+## Solution Design
+
+The fundamental solution design for keyboard selection is that the responsibilities between the Terminal Control and Terminal Core must be very distinct. The Terminal Control is responsible for handling user interaction and directing the Terminal Core to update the selection. The Terminal Core will need to update the selection according to the preferences of the Terminal Control.
+
+Relatively recently, TerminalControl was split into `TerminalControl`, `ControlInteractivity`, and `ControlCore`. Changes made to `ControlInteractivity`, `ControlCore`, and below propagate functionality to all consumers, meaning that the WPF terminal would benefit from these changes with no additional work required.
+
+### Fundamental Terminal Control Changes
+
+`ControlCore::TrySendKeyEvent()` is responsible for handling the key events after key bindings are dealt with in `TermControl`. At the time of writing this spec, there are 2 cases handled in this order:
+- Clear the selection (except in a few key scenarios)
+- Send Key Event
+
+The first branch will be updated to _modify_ the selection instead of usually _clearing_ it. This will happen by converting the key event into parameters to forward to `TerminalCore`, which then updates the selection appropriately.
+
+#### Idea: Make keyboard selection a collection of standard keybindings
+One idea is to introduce an `updateSelection` action that conditionally works if a selection is active (similar to the `copy` action). For these key bindings, if there is no selection, the key events are forwarded to the application.
+
+Thanks to Keybinding Args, there would only be 1 new command:
+| Action | Keybinding Args | Description |
+|--|--|--|
+| `updateSelection` |                                                | If a selection exists, moves the last selection endpoint. |
+|                       | `Enum direction { up, down, left, right }` | The direction the selection will be moved in. |
+|                       | `Enum mode { char, word, view, buffer }`   | The context for which to move the selection endpoint to. (defaults to `char`) |
+
+
+By default, the following keybindings will be set:
+```JS
+// Character Selection
+{ "command": {"action": "updateSelection", "direction": "left",  "mode": "char" }, "keys": "shift+left" },
+{ "command": {"action": "updateSelection", "direction": "right", "mode": "char" }, "keys": "shift+right" },
+{ "command": {"action": "updateSelection", "direction": "up",    "mode": "char" }, "keys": "shift+up" },
+{ "command": {"action": "updateSelection", "direction": "down",  "mode": "char" }, "keys": "shift+down" },
+
+// Word Selection
+{ "command": {"action": "updateSelection", "direction": "left",  "mode": "word" }, "keys": "ctrl+shift+left" },
+{ "command": {"action": "updateSelection", "direction": "right", "mode": "word" }, "keys": "ctrl+shift+right" },
+
+// Viewport Selection
+{ "command": {"action": "updateSelection", "direction": "left",  "mode": "view" }, "keys": "shift+home" },
+{ "command": {"action": "updateSelection", "direction": "right", "mode": "view" }, "keys": "shift+end" },
+{ "command": {"action": "updateSelection", "direction": "up",    "mode": "view" }, "keys": "shift+pgup" },
+{ "command": {"action": "updateSelection", "direction": "down",  "mode": "view" }, "keys": "shift+pgdn" },
+
+// Buffer Corner Selection
+{ "command": {"action": "updateSelection", "direction": "up",    "mode": "buffer" }, "keys": "ctrl+shift+home" },
+{ "command": {"action": "updateSelection", "direction": "down",  "mode": "buffer" }, "keys": "ctrl+shift+end" },
+```
+These are in accordance with ConHost's keyboard selection model.
+
+This idea was abandoned due to several reasons:
+1. Keyboard selection should be a standard way to interact with a terminal across all consumers (i.e. WPF control, etc.)
+2. There isn't really another set of key bindings that makes sense for this. We already hardcoded <kbd>ESC</kbd> as a way to clear the selection. This is just an extension of that.
+3. Adding 12 conditionally effective key bindings takes the spot of 12 potential non-conditional key bindings. It would be nice if a different key binding could be set when the selection is not active, but that makes the settings design much more complicated.
+4. 12 new items in the command palette is also pretty excessive.
+5. If proven wrong when this is in WT Preview, we can revisit this and make them customizable then. It's better to add the ability to customize it later than take it away.
+
+#### Idea: Make keyboard selection a simulation of mouse selection
+It may seem that some effort can be saved by making the keyboard selection act as a simulation of mouse selection. There is a union of mouse and keyboard activity that can be represented in a single set of selection motion interfaces that are commanded by the TermControl's Mouse/Keyboard handler and adapted into appropriate motions in the Terminal Core.
+
+However, the mouse handler operates by translating a pixel coordinate on the screen to a text buffer coordinate. This would have to be rewritten and the approach was deemed unworthy.
+
+
+### Fundamental Terminal Core Changes
+
+The Terminal Core will need to expose a `UpdateSelection()` function that is called by the keybinding handler. The following parameters will need to be passed in:
+- `enum SelectionDirection`: the direction that the selection endpoint will attempt to move to. Possible values include `Up`, `Down`, `Left`, and `Right`.
+- `enum SelectionExpansion`: the selection expansion mode that the selection endpoint will adhere to. Possible values include `Char`, `Word`, `View`, `Buffer`.
+
+#### Moving by Cell
+For `SelectionExpansion = Char`, the selection endpoint will be updated according to the buffer's output pattern. For **horizontal movements**, the selection endpoint will attempt to move left or right. If a viewport boundary is hit, the endpoint will wrap appropriately (i.e.: hitting the left boundary moves it to the last cell of the line above it).
+
+For **vertical movements**, the selection endpoint will attempt to move up or down. If a **viewport boundary** is hit and there is a scroll buffer, the endpoint will move and scroll accordingly by a line.
+
+If a **buffer boundary** is hit, the endpoint will not move. In this case, however, the event will still be considered handled.
+
+**NOTE**: An important thing to handle properly in all cases is wide glyphs. The user should not be allowed to select a portion of a wide glyph; it should be all or none of it. When calling `_ExpandWideGlyphSelection` functions, the result must be saved to the endpoint.
+
+#### Moving by Word
+For `SelectionExpansion = Word`, the selection endpoint will also be updated according to the buffer's output pattern, as above. However, the selection will be updated in accordance with "chunk selection" (performing a double-click and dragging the mouse to expand the selection). For **horizontal movements**, the selection endpoint will be updated according to the `_ExpandDoubleClickSelection` functions. The result must be saved to the endpoint. As before, if a boundary is hit, the endpoint will wrap appropriately. See [Future Considerations](#FutureConsiderations) for how this will interact with line wrapping.
+
+For **vertical movements**, the movement is a little more complicated than before. The selection will still respond to buffer and viewport boundaries as before. If the user is trying to move up, the selection endpoint will attempt to move up by one line, then selection will be expanded leftwards. Alternatively, if the user is trying to move down, the selection endpoint will attempt to move down by one line, then the selection will be expanded rightwards.
+
+#### Moving by Viewport
+For `SelectionExpansion = View`, the selection endpoint will be updated according to the viewport's height. Horizontal movements will be updated according to the viewport's width, thus resulting in the endpoint being moved to the left/right boundary of the viewport.
+
+#### Moving by Buffer
+
+For `SelectionExpansion = Buffer`, the selection endpoint will be moved to the beginning or end of all the text within the buffer. If moving up or left, set the position to 0,0 (the origin of the buffer). If moving down or right, set the position to the last character in the buffer.
+
+
+**NOTE**: In all cases, horizontal movements attempting to move past the left/right viewport boundaries result in a wrap. Vertical movements attempting to move past the top/bottom viewport boundaries will scroll such that the selection is at the edge of the screen. Vertical movements attempting to move past the top/bottom buffer boundaries will be clamped to be within buffer boundaries.
+
+Every combination of the `SelectionDirection` and `SelectionExpansion` will map to a keybinding. These pairings are shown below in the UI/UX Design --> Keybindings section.
+
+**NOTE**: If `copyOnSelect` is enabled, we need to make sure we **DO NOT** update the clipboard on every change in selection. The user must explicitly choose to copy the selected text from the buffer.
+
+
+## UI/UX Design
+
+### Key Bindings
+
+There will only be 1 new command that needs to be added:
+| Action | Keybinding Args | Description |
+|--|--|--|
+| `selectAll`  | | Select the entire text buffer.
+
+By default, the following key binding will be set:
+```JS
+{ "command": "selectAll", "keys": "ctrl+shift+a" },
+```
+
+## Capabilities
+
+### Accessibility
+
+Using the keyboard is generally a more accessible experience than using the mouse. Being able to modify a selection by using the keyboard is a good first step towards making selecting text more accessible.
+
+### Security
+
+N/A
+
+### Reliability
+
+With regards to the Terminal Core, the newly introduced code should rely on already existing and tested code. Thus no crash-related bugs are expected.
+
+With regards to Terminal Control and the settings model, crash-related bugs are not expected. However, ensuring that the selection is updated and cleared in general use-case scenarios must be ensured.
+
+### Compatibility
+
+N/A
+
+### Performance, Power, and Efficiency
+
+## Potential Issues
+
+### Grapheme Clusters
+When grapheme cluster support is inevitably added to the Text Buffer, moving by "cell" is expected to move by "character" or "cluster". This is similar to how wide glyphs are handled today. Either all of it is selected, or none of it.
+
+## Future considerations
+
+### Word Selection Wrap
+At the time of writing this spec, expanding or moving by word is interrupted by the beginning or end of the line, regardless of the wrap flag being set. In the future, selection and the accessibility models will respect the wrap flag on the text buffer.
+
+## Mark Mode
+
+This functionality will be expanded to create a feature similar to Mark Mode. This will allow a user to create a selection using only the keyboard.
+
+
+## Resources
+
+- https://blogs.windows.com/windowsdeveloper/2014/10/07/console-improvements-in-the-windows-10-technical-preview/
--- a/doc/specs/TerminalSettings-spec.md
+++ b/doc/specs/TerminalSettings-spec.md
@@ -17,7 +17,7 @@ This spec will outline how various terminal frontends will be able to interact w
  Terminal component.
 * **Terminal Layer**: This is the shared core implementation of the terminal.
  This is the Terminal Connection, Parser/Adapter, Buffer, and Renderer (but not
-  the UX-dependent RenderEngine).
+  the UX-dependant RenderEngine).

 ## User Stories
 1. "Project Cascadia" should be able to have both global settings (such as
--- a/doc/specs/drafts/#3327
+++ b/doc/specs/drafts/#3327
@@ -1,243 +0,0 @@
---
-author: Mike Griese @zadjii-msft
-created on: 2022-02-15
-last updated: 2022-04-25
-issue id: #10509
---
-
-
-# Mica in the Terminal
-
-## Abstract
-
-This document serves as a companion doc to the [Theming Spec], rather than a
-spec on it's own. The context of broader application-level theming support is
-necessary to understand the big picture of the designs in this discussion.
-
-
-This spec is intended to help understand the problem space of adding [Mica] to
-the Windows Terminal. Introduced in Windows 11, Mica is a new type of material
-that incorporates theme and desktop wallpaper to paint the background of
-windows. The effect results in a blurred, transparency-like effect, quite
-similar to [Acrylic]. However, the technical limitations of Mica make it more
-complicated to integrate seamlessly with the Terminal experience.
-
-## Background
-
-Mica is a material that can only be applied to the root of the UI tree, and
-applies to the entire background surface. It's recommended to be used at the
-`Page` level, in place of a solid brush like
-`ApplicationPageBackgroundThemeBrush`. If the developer wants a surface within
-the page to have a Mica background, they need to make sure to have that element
-(and all elements behind it up until the `Page`) have a `Transparent`
-background, so that Mica will be visible through the elements.
-
-This is contrasted with something like Acrylic, where the acrylic effect is
-specified at the Element layer itself. An element can request having a
-`HostBackdrop` brush for its background, and the element will have the Acrylic
-effect regardless of the structure of the rest of the elements in the UI tree.
-
-Another important use case here is "Vintage Transparency" (or "unblurred
-transparency"), which is an unblurred transparency effect for the Terminal
-window. This is achieved with the `TransparentBackground` API, which enables the
-Terminal to disable the emergency backstop of the XAML Island. When that's
-enabled, controls that are transparent will be blended, unblurred, with whatever
-is visible behind the window. This works because the entire tree of the Terminal
-window underneath the `TermControl`s are `Transparent`, all the way up to the
-window itself.
-
-Right now, the Terminal exposes three settings<sup>[[1]](#footnote-1)</sup>:
-* Background color
-* Background Opacity
-* Whether the user would like to enable acrylic or not
-
-These settings are exposed at the "Profile"<sup>[[2]](#footnote-2)</sup> level.
-Properties on a profile are roughly considered to be "what the terminal control
-will look like when I run this settings profile". Users can have one profile
-with acrylic, one without, and open [Panes] with these profiles side-by-side in
-the Terminal. It's entirely possible that a user would have both a pane with and
-acrylic background, and one with an unblurred background in the same window.
-
-### User Stories
-
-* The Terminal should be able to have Mica in the title bar, behind the tabs.
-* Users will want Mica in the control area, as well as in the titlebar
-* Users may want Mica in the control, but with a solid titlebar, or an accent
-  colored title bar, or an acrylic one...
-* Users will want mica in the titlebar with other effects (acrylic, vintage
-  transparency) in the control area
-
-This is where things get complicated. Given that a control can choose what type
-of material it has now, users would likely expect to be able to choose between
-acrylic, unblurred transparency, or Mica. However, Mica can only be applied at
-the root of the window. It's applied behind everything else in the window. From
-an implementation standpoint, Mica is a window-level property, not a control
-level one. If we want to have Mica under one control, we need to enable it for
-the _whole window_. If we enable Mica for the whole window, that would
-simultaneously prevent Vintage Transparency from working as expected. This is
-because the semi-transparent controls would no longer have a fully transparent
-window background to sit on top of - they'd be blended instead with the Mica
-background behind the window.
-
-## Solution design
-
-### Mica for `TermControl`s
-If we make enabling Mica for the control a per-profile setting, I believe that
-will lead to greater user confusion. It would result in "spooky action at a
-distance", where creating any pane with Mica would force the entire window to
-have a Mica background. This would change the appearance of any other unblurred
-transparent panes in the window, causing them to also be subjected to the Mica
-treatment as well.
-
-**Proposal**: create a window-level theme property `window.background.useMica`
-(or similar), which will enable Mica for the entire window. When enabled, users
-can use a fully transparent, unblurred background for their profile to achieve
-the Mica effect within the control. When enabled, users **won't** be able to see
-through to the desktop with any vintage opacity settings.
-
-By nesting Mica usage under `"window.background"`, it will be clearer that it's
-something that applies to the whole window, as the background for everything.
-I believe this is the most acceptable way to expose Mica to our users without
-"spooky action at a distance".
-
-An example of what mica in the control area might look like:
-
-![Mica in the TermControl](./mica-in-control-000.png)
-
-### Mica in the titlebar
-
-To achieve Mica in the titlebar, we'll similarly need to allow users to set the
-titlebar area to totally transparent, to allow the mica behind the window to be
-visible. A simple theme to achieve that might look like:
-
-```jsonc
-{
-    "theme": "My Mica Titlebar Theme",
-    "themes": [
-        {
-            "name": "My Mica Titlebar Theme",
-            "window":{
-                "background.useMica": true, // Use mica behind the window
-            },
-            "tabRow":{
-              "background": "#00000000", // Make the TabView Transparent
-            }
-        }
-    ]
-}
-```
-
-As noted before, due to the intentional limitations of the Mica material, if the
-user wants Mica in the tab row, they won't be able to use vintage opacity in any
-controls. The vintage opacity of the controls will show through to the Mica
-layer, instead of transparent through the whole window.
-
-## Considered implementations
-
-* We experimented with a new DWM API in SV2 which should enable us to set the
-  background of our window to Mica. This did seem to work for the root window.
-  It however, did not seem to work for the "drag window", the child HWND which
-  we use to intercept nonclient messages in our titlebar area. Apparently, that
-  API does not work at all for `WS_CHILD` windows, by design. This unfortunately
-  prevents us from allowing Mica only in the titlebar area, without also
-  applying it to the rest of the main window.
-* We considered rolling our own Mica brush to allow us to style individual
-  elements. This didn't seem terribly hard at face value, considering [the Mica
-  recipe] is basically open-source. However, it seems to rely on some
-  closed-source `IGraphicsEffect`s from the `Composition.Effects` namespace.
-  Apparently, those effects are only [implemented in Win2D]. It's unclear at
-  this time if the Terminal would be capable of ingesting Win2D now or in the
-  future. It does seem as though [Win2D is available via cppwinrt], so that's of
-  some solace.
-
-  **However**, that does leave us in the world where we're rolling our own
-  custom Mica brush, and would need to keep it up to date with the OS
-  implementation. We'd be firmly off the rails of the recommended Mica usage,
-  and our support would be likely very minimal. This is reason alone to
-  avoid this path, and instead push for a platform-supported solution.
-
-  **TODO!**: We should make sure to have a Future Considerations section on how
-  we'd implement per-element Mica, should that option be available to us in the
-  future.
-
-## Potential Issues
-
-This is not a particularly ergonomic design. From a UX perspective, the user
-needs to enable one setting in the UI to enable Mica, and then go to profile
-settings to set the profile to _transparent_ for each of the profiles they want
-with Mica. That's not very intuitive by any means.
-
-Mica would also impact our ability to enable the "acrylic on an unfocused
-window" functionality, requested in [#7158]. To support that feature, we need to
-have a transparent window backdrop, so that the in-app acrylic will magically
-use the desktop background. With Mica and this setting enabled, the acrylic
-would apply on top of the Mica layer. Either warnings would need to be
-displayed, or one setting would have to disable the other. At the very least,
-the documentation needs to be very clear about this.
-
-In [this comment], the poster shows a pretty cool mockup of what a background
-image for the _window_ might look like. This kinda fills a similar problem space
-as Mica. If there were a background image for the whole Terminal window, then
-in-app acrylic would apply on top of the image. Vintage transparency wouldn't
-work through the image, it would apply on _top_ of the image. Perhaps, because
-of these related concerns, there should be a singular `window.background`
-property, that contains an object of settings. Or, to follow the solely dot
-notation from before
-
-```jsonc
-{
-    "theme": "My Background Theme",
-    "themes": [
-        {
-            "name": "My Background Theme",
-            "window":{
-                "background.useMica": true, // Use mica behind the window
-                "background.image": "some/path/to/image", // Use a BG image
-                "background.imageOpacity": 25, // Image is mostly transparent
-            },
-            "tabRow":{
-              "background": "#00000000", // Make the TabView Transparent
-            }
-        }
-    ],
-    "profiles": {
-        "defaults": {
-            "opacity": 0 // Panes are all totally transparent
-        }
-    }
-}
-```
-
-## Future considerations
-
-* I believe Insiders builds have support for two different variants of Mica -
-  standard Mica, and "Thin" Mica. We may need to support a future enum value
-  here, with values `"none", "original", "thin"`. For compatibility with the
-  boolean values, `true=="original"`, `false=="none"`.
-
-## Resources
-
-
-### Footnotes
-
-<a name="footnote-1"><a>[1]: For simplicity of the spec, I'm ignoring the
-background image settings. I'm also ignoring the small quirk where (at the time
-of writing), vintage opacity doesn't work on Windows 10. That creates some weird
-quirks where acrylic is always enabled if the user wants transparency on Windows
-10. A full discussion of this would only serve to complicate what is
-fundamentally a Windows 11-centric discussion.
-
-<a name="footnote-2"><a>[2]: We're also gonna leave out a discussion of focused
-& unfocused "appearance" setting objects, again for brevity.
-
-[Theming Spec]: ./%233327%20-%20Application%20Theming.md
-[Mica]: https://docs.microsoft.com/en-us/windows/apps/design/style/mica
-[Acrylic]: https://docs.microsoft.com/en-us/windows/apps/design/style/acrylic
-[Panes]: https://docs.microsoft.com/en-us/windows/terminal/panes
-[#3327]: https://github.com/microsoft/terminal/issues/3327
-[#10509]: https://github.com/microsoft/terminal/issues/10509
-[#7158]: https://github.com/microsoft/terminal/issues/7158
-[this comment]: https://github.com/microsoft/terminal/issues/3327#issuecomment-765493313
-[the Mica recipe]: https://github.com/microsoft/microsoft-ui-xaml/blob/0db5d0398cb38d69b06e26ef734cbbdebdebe774/dev/Materials/Backdrop/SystemBackdropBrushFactory.cpp#L8-L54
-[implemented in Win2D]: https://docs.microsoft.com/en-us/uwp/api/windows.ui.composition.compositioneffectbrush?view=winrt-22000#remarks
-[Win2D is available via cppwinrt]: https://stackoverflow.com/questions/49342164/is-win2d-yet-available-in-c-winrt
--- a/doc/specs/drafts/#3327
+++ b/doc/specs/drafts/#3327
@@ -1,728 +0,0 @@
---
-author: Mike Griese @zadjii-msft
-created on: 2019-12-13
-last updated: 2022-04-25
-issue id: #3327
---
-
-
-TODO!S:
-* How do themes play with different window title settings? (different themes for different windows. `_quake` esp.))
-* any clever ideas for elevated themes?
-* Reconcile with global `experimental.useBackgroundImageForWindow` from [#12893]
-
-# Application Theming
-
-## Abstract
-
-This spec outlines how the Windows Terminal will enable users to create custom
-"themes" for the application, enabling further customization of the window.
-These themes will be implemented as objects containing a group of UI-specific
-properties, so users can quickly apply a group of properties atomically.
-
-## Inspiration
-
-Much of the inspiration for this feature comes from VsCode and its themes. These
-themes can be more than just different color palettes for the editor - these
-themes can control the appearance of a variety of UI elements of the VsCode
-window.
-
-## Solution Design
-
-### Requested Functionality ("User Stories")
-
-The following is a long list of ideas of elements of the window that the user
-should be able to customize:
-
-* [ ] Pane Border colors (both the background, and the "focused" color) ([#3061])
-* [ ] Pane border width ([#3062])
-* [ ] Tab _Row_ and _Item_ Background color ([#702]/[#1337]/[#2994]/[#3774]/[#1963])
-    - Some users want to set these to the accent color
-    - Some users want to set these to a specific custom color
-    - Some users want this to use the color straight from the active Terminal,
-      allowing the tab or titlebar to "blend into" the terminal
-* [ ] Feature Request: Setting to hide/remove close ("x") button from tabs ([#3335])
-* [ ] Various different tab sizing modes
-    - the current sizing, which is `SizeToContent`
-    - Setting a min/max width on tabs
-    - Configuring tabs to split the available space
-
-Other lower-priority ideas:
-* [ ] Enable hiding the tab icon altogether
-* [ ] Enable forcing tab icons to monochrome
-* [ ] Tab row height
-* [ ] Tab row font size, font face
-* [ ] Tab corner radius
-* [ ] Margin between tabs? Padding within the tab?
-* [ ] Left-justify / Center / right-justify tab text, when tabs are wider than
-  their text?
-* [ ] Control colors for light vs dark vs high-contrast modes
-* [ ] Enable/disable a shadow underneath the tab row, between tabs and content
-* [ ] Enable/disable a shadow cast by terminals on pane borders or a shadow cast
-  by pane borders on Terminal panes
-* [ ] Similarly to the tabs, styling the Status Bar ([#3459])
-    - Maybe enable it to have the same color as the active TermControl, causing
-      the same "seamless" effect (see [this
-      comment](https://github.com/microsoft/terminal/issues/3459#issuecomment-550501577))
-    - Change font size, face, colors
-    - Control the borders on the status bar - no top border would give the
-      impression it's "seamless"
-
-Additionally, the user should be able to easily switch from one installed theme
-to another. The user should be able to copy a simple blob of settings from the
-web and paste it into their settings to be able to easily try the theme out.
-
-### Difference between "Themes" and "Schemes"
-
-The avid follower of the Windows Terminal might know that the Terminal already
-contains support for "color schemes". What makes themes different from these
-schemes, and why should they be separate objects?
-
-**Color Schemes** are objects that generally control the appearance of the
-Terminal Control itself (the proverbial "black rectangle with text in it").
-Primarily, color schemes are used for setting the "color table" of a terminal
-instance, setting the values for each of the 16 colors in the terminal's color
-table, and the default foreground and background colors. These are properties
-that only apply to the contents of the terminal itself, and not necessarily the
-entire application. Individual terminal control instances can have different
-color schemes. Furthermore, these schemes are largely in-line with schemes
-available on other platform's terminals. These schemes were heavily inspired by
-the great work done at [iTerm2-Color-Schemes].
-
-Alternatively, **Themes** are sets of properties that apply primarily to the
-window of the application itself, but not necessarily the terminal content.
-These properties apply globally to the entire window, as opposed to controlling
-the appearance of individual terminals. These properties include things such as
-the coloration and styling of the tabs in the tab row.
-
-### Theme objects
-
-Themes will be implemented largely similar to the color schemes implementation.
-Currently, the terminal contains a list of available color schemes, and profiles
-can chose to apply a scheme from the list of schemes. We'll add a list of
-`themes`, and globally, the user will be able to specify one of these themes to
-apply.
-
-Take for example the following settings excerpt:
-
-```json
-{
-    "theme": "My Boxy Theme",
-    "themes": [
-        {
-            "name": "My Boxy Theme",
-            "window":{
-              "applicationTheme": "dark"
-            },
-            "tab": {
-              "radius": 0,
-              "padding": 5,
-              "background": "terminalBackground",
-              "textColor": "key:SystemAccentColorLight3",
-              "icon": "outline",
-              "closeButton": "hidden",
-            },
-            "tabRow":{
-              "background": "accent",
-              "shadows": false
-            }
-        },
-        {
-            "name": "My small light theme",
-            "window":{
-              "applicationTheme": "light"
-            },
-            "tab": {
-              "background": "#80ff0000",
-              "height": 8,
-              "icon": "hidden",
-              "closeButton": "hover"
-            },
-            "tabRow":{
-              "background": "#ffffffff",
-              "acrylicOpacity": 50,
-            }
-        }
-    ]
-}
-```
-
-In the above settings snippet, we see the following things:
-1. A list of `themes` that the user can pick from. Each theme has a `name`
-   property used to identify the theme, and a group of properties for the theme.
-2. The user has set the `theme` to `"My Boxy Theme"`, the first theme
-   in the list of themes. If the user wanted to switch to the other installed
-   theme, `"My small light theme"`, they'd simply need to change this property.
-
-> _note_: Initially, we had considered a `elementPropertyName`-like syntax as
-opposed to the object-grouped one above. We also considered a
-`element.propertyName`-like syntax. Overall, we liked the object based one best.
->
-> **For simplicity, we'll be using `element.propertyName` syntax throughout to**
-> **refer to these properties, when grouped under `element` objects in the theme.**
-
-These Theme objects are designed to make it simple for the user to be able to
-quickly download these as an extension in the future, and hot-switch between
-them. Imagine: an application that would provide a gallery of uploaded themes,
-and the user could install them as [fragment extensions].
-
-### Exposed theme properties
-
-Themes should be able to control a variety of elements of the Terminal UI. Some
-of these settings will be easier to implement than others. As such, below is a
-set of properties that seems appropriate to include as part of a "v1" theming
-implementation. In [Future Considerations](#future-considerations), we'll
-enumerate additional properties that could be added in the future to further
-control the UI.
-
-#### Highest priority theming properties
-
-These are the elements that have orders of magnitude more requests:
-* Customizing the titlebar color, including the unfocused titlebar color. This
-  includes merging with the existing `useAcrylicInTabRow` setting.
-* Customizing the tab color
-* Enabling Mica for the window
-
-These represent the most important asks of theming in the Terminal. Everything
-else that follows is merely "nice to have". The most important elements then
-are:
-
-* Properties:
-    - `tab.background`
-    - `tabRow.background`
-    - `tabRow.acrylicOpacity`
-    - `tabRow.unfocusedBackground`
-    - `window.background.useMica`
-* Theme color variants:
-    - `"#rrggbb"` or `"#rrggbbaa"`
-    - `"accent"`
-    - `"terminalBackground"`
-
-#### Additional theming v1 Properties
-
-These are additional settings that seem of higher priority or would be easier to
-implement. They are categorized by the element of the Terminal they are
-controlling:
-
-##### Individual Tabs
-
-* `tab.cornerRadius`: Control the radius of the corners of the tab items.
-  Accepts a `double`. If this is set to `0`, then the tabs will have squared-off
-  corners. No particular limit is set on the max value accepted, though larger
-  values might not be aesthetically pleasing.
-* `tab.bottomCornerRadius`: Control the radius of the bottom corners of the tab
-  items. This can be used to make the tabs look like "buttons" in the tab row,
-  instead of tabs.
-* `tab.closeButton`: Control the visibility of the close button for a tab item.
-  Accepts the following values:
-    - `visible`: The default behavior of the tab item close button - always
-      visible.
-    - `hover`: The close button on a tab item only appears when the tab is
-      hovered.
-    - `hidden`: The close button on a tab is always hidden.
-* `tab.icon`: Control the visibility, appearance of the tab icon
-    - `visible`: The default behavior of the tab item icon - always visible, and
-      in full color.
-    - `outline`: The icon is always visible, but is only drawn as an outline,
-      using `BitmapIconSource.ShowAsMonochrome(true)`
-    - `hidden`: The icon is hidden
-* `tab.background`: Control the color of the background of tab items. See below
-  for accepted colors.
-
-##### Tab Row / "Titlebar"
-
-* `tabRow.background`: Control the color of the background of the tab row. When
-  tabs in the titlebar are enabled, this sets the color of the titlebar. See
-  below for accepted colors.
-    - Notably, this is named `tabRow.background`, **not** `titlebar.background`.
-      Outside of tabs-in-titlebar mode, we can't control the window titlebar
-      color.
-    - This ignores any alpha and always uses 1.0 for the alpha channel. See
-      [Titlebar complications](#Titlebar-complications) for details.
-* `tabRow.unfocusedBackground`: Control the color of the background of the tab
-  row, when the window is unfocused. See below for accepted colors.
-    - **TODO!** When omitted, should this default to the `tabRow.background`
-      value (if set), or just the normal unfocused window color? "the normal
-      unfocused window color" is a SUBSTANTIALLY easier implementation.
-    - This ignores any alpha and always uses 1.0 for the alpha channel. See
-      [Titlebar complications](#Titlebar-complications) for details.
-* `tabRow.acrylicOpacity`: Optional integer representation of an opacity
-  (0-100). When provided, the `tabRow.background` color is treated as an acrylic
-  brush, with the given `TintOpacity`. When omitted, `tabRow.background` is
-  treated as a solid color.
-    - This is to replace the original `useAcrylicInTabRow` setting.
-    - This is NOT provided for the `tabRow.unfocusedBackground` setting. See
-      [Titlebar complications](#Titlebar-complications) for details.
-
-##### Panes
-
-* `pane.borderColor`: Control the color of the border used to separate panes.
-  This is the color of the inactive border between panes.
-* `pane.activeBorderColor`: Control the color of the border of the active pane
-* `pane.borderWidth`: Control the width of the borders used to separate panes.
-
-##### Window Properties
-
-* `window.applicationTheme`: If set, will set the XAML `RequestedTheme`
-  property. This can be one of `light`, `dark` or `system`. This controls how
-  XAML fundamentally styles UI elements. If not provided, will use the default
-  value "system", which will use whatever the system's default theme is.
-* `window.roundedCorners`: A boolean, to control whether the window has rounded
-  corners on Windows 11.
-* `window.background.useMica`: a boolean that enables/disables Mica. For more
-  discussion, see [Mica Spec].
-* `window.background.image`: a path to an image to use as the background for the
-  whole of the content of the Terminal, including in the tab row space.
-    - Additional properties to control the sizing of this image (`padding`,
-      `stretchMode`, `opacity`, etc) would also be exposed as
-      `window.background.imagePadding`, a la the similar Profile settings.
-
-#### Theme Colors
-
-For properties like `tab.background` and `tabRow.background`, these colors can
-be one of:
-* an `#rrggbb`, `#aarrggbb` color. (Alpha is ignored for `tabRow.background`)
-* `accent` for the _titlebar_ version of the accent color. Notably, this is
-  **not** just some `SystemAccentColor` value, it's apparently some other value.
-  This has a different value depending on if the window is focused or not. Refer
-  to Edge the "use accent color on titlebars" setting enabled as a reference.
-* `terminalBackground` to use the default background color of the active
-  terminal instance.
-* `terminalForeground` to use the default foreground color of the active
-  terminal instance.
-* `key:SomeXamlKey` to try and look `SomeXamlKey` up from our resources as a
-  `Color`, and use that color for the value.
-    - `accent` is NOT the same thing as `key:SystemAccentColor`? If it is, is it a reasonable
-      alias that we'd want to provide anyways?
-    - **TODO! DISCUSSION**: PR[#5280] suggested `{ "key": "SomeResourceKey" }` for
-      string resources, should we use that format for colors like this as well?
-
-This will enable users to not only provide custom colors, but also use the
-dynamic color of the active terminal instance as well.
-
-Using `terminalBackground` with multiple concurrent panes with different
-backgrounds could certainly lead to some odd behavior. The intention of the
-setting is to provide a way for the tab/titlebar to "seamlessly" connect to the
-terminal content. However, two panes side-by-side could have different
-background colors, which might have an unexpected appearance. Since the user
-must have opted in to this behavior, they'll need to decide personally if
-that's something that bothers them aesthetically. It's entirely possible that a
-user doesn't use panes, and this wouldn't even be a problem for them.
-
-<!-- We could maybe mitigate this by providing the user a way of specifying the
-`tab.background` color as having both a "single pane" and "multiple pane" mode,
-though I'm not sure I'm in love with this:
-
-```json
-    "tab.background": {"single": "terminalBackground", "multiple": null},
-    "tab.background": {"single": "terminalBackground", "multiple": "#ff0000"},
-    "tab.background": [ "terminalBackground", null ]
-```
-
- Also shown is an array based implementation, as an option. Overall I'm not
- happy with this, so I think it shouldn't be in the final draft of the spec, but
- I'm leaving it for now as an option.
-->
-
-### Implementation of theming
-
-Largely, whenever possible, we should be able to implement this theming support
-by modifying our application's `ResourceDictionary` with custom values to
-control the appearance of UI elements.
-
-For example, the `TabView` already exposes a number of XAML resources we can
-modify to adjust it's appearance.
-* `TabViewBackground` controls the appearance of the background of the tab view.
-  In `showTabsInTitlebar: true` mode, this is the color of the titlebar.
-* `TabViewItemHeaderBackground` and `TabViewItemHeaderBackgroundSelected`
-  control the appearance of an individual tab.
-
-By modifying the values of these brushes, we can control the appearance of the
-tabs. So long as we only in-place modify the resources, XAML is smart enough to
-be able to update it's appearance automatically. We can do this by querying the
-`ResourceDictionary` for a given resource, and changing it's value, rather than
-`insert`ing a new value into the `ResourceDictionary` to replace the old one.
-
-In addition to the above properties, I propose adding a couple of our own
-properties: `PaneBorderWidth`: To control the width of pane borders
-`PaneBorderBrush`: To control the appearance of _inactive_ pane borders
-`ActivePaneBorderBrush`: To control the appearance of _active_ pane borders
-
-In order to respond to the live-updating of the `TermControl`'s background
-color, we'll need to add some more specific logic beyond simply updating a XAML
-resource when settings change. Whenever a `TermControl`'s background color
-changes, or the active pane in a tab changes:
-* If `tab.background == "terminalBackground"`:
-    - If this control is the tab's active terminal control (and the tab doesn't
-      have a custom color set by the color picker), update the tab's own
-      `TabViewItem` with updated `TabViewItemHeaderBackground` and
-      `TabViewItemHeaderBackgroundSelected` values.
-        - Here, we _don't_ want to update the `App`'s resources, since those
-          apply globally, and each tab might have a control with a different
-          color.
-        - The color set by the color picker should override the color from the
-          theme (as the former is a run-time property set to override the
-          latter).
-* If `tabRow.background == "terminalBackground"`:
-    - If this control is the active terminal of the active `Tab`, then we need
-      to raise an event to communicate this updated value up to the window
-      layer. We'll raise a `"TabRowBackgroundBrush"` property changed event,
-      that the app host can listen for and use to set the titlebar's color, if
-      needed.
-    - The `TerminalPage` also will need to set the Background of the
-      `TabRowControl` to match.
-
-The `tab.cornerRadius` might be a bit trickier to implement. Currently, there's
-not a XAML resource that controls this, nor is this something that's exposed by
-the TabView control. Fortunately, this is something that's exposed to us
-programmatically. We'll need to manually set that value on each `TabViewItem` as
-we create new tabs. When we reload settings, we'll need to make sure to come
-through and update those values manually.
-
-> NOTE: [microsoft-ui-xaml#2201] suggested that this will be possible with a
-> future MUX version and changing the `OverlayCornerRadius`.
-
-### Tab Background Color, Overline Color, and the Tab Color Picker
-
-Concurrently with the writing of this spec, work is being done to add a "color
-picker" for tabs, that lets the user manually set a background color for tabs.
-This may in the future cause some complications with setting a color for tabs
-from the theme.
-
-When both features are combined, the color set at runtime but the color picker
-should override whatever color the user has set in the theme. When the color
-picker "clears" the color it has set for the tab, it should revert to the color
-from the theme (if one is set).
-
-Also mentioned in the implementation of the color picker feature was the ability
-to not set the entire color of the tab, but just the color of a tab "overline",
-similar to the way Firefox (by default) styles the focused tab.
-
-Currently, the `TabView` doesn't support a tab "overline" like this, however, in
-the future where this is possible, we'd love to also support such an overline.
-However, the story of setting the tab color manually becomes a bit more
-confusing now.
-
-* The user should be able to set both the `tab.background` and `tab.overline`
-  colors in a theme.
-* The user should be able to configure whether the color picker sets the
-  `background` or the `overline` color of the tab.
-
-The second setting added above will allow the user to change what's controlled
-by the color picker. Similarly to how the color picker can set the background of
-the tab to override the background from the theme, the user could configure the
-color picker to be able to change the overline color, not the background color
-of the tab. Then, when the user uses the color picker, the overline color will
-be overridden by the color picker, instead of the tab background color.
-
-**Other things to consider:**
-* Users might want to be able to set a tab color as a part of the profile. One
-  could imagine wanting to set the tab background color for Windows PowerShell
-  to `rgb(1, 36, 86)` automatically. If we make this property part of the
-  Profile, then we should use the profile's value as the runtime-override (of
-  the theme value) for this property. If the color picker is used to set the
-  color of the tab, then it'll override the runtime color for that tab.
-  - How does this interact with multiple Panes in a tab? Should the Tab
-    override color be per-terminal instance? If the terminal has a tab color,
-    then that would override the theme, but not the tab's own override color?
-    - If that were the case, the order of precedence would be:
-      1. A color set at runtime with the color picker
-      2. A color from the active terminal within the tab, if it has one
-      3. The tab color from the theme
-* Users might want to be able to configure the titlebar to use a color based off
-  the active tab color. We might need an additional special value like
-  `terminalBackground` that lets users say "I want to use the active tab color
-  as the titlebar color".
-  - During [#3789], there was a point where the terminal raised actually
-    implemented something like this. In it's implementation, the titlebar color
-    would be slightly lighter or darker than the tab color (to provide some
-    contrast). We'd want to make sure that the user could specify both "I want
-    to use the tab color with some contrast applied" or just literally "Use
-    whatever the active tab's color is."
-
-### Default Themes
-
-Late in 1.0, we renamed the old property `requestedTheme` to just `theme`.
-Currently, the user can use that property to simply set the XAML
-`RequestedTheme` property, which controls the theming of all the XAML UI
-elements. Currently, they can set that value to one of `light`, `dark` or
-`system`.
-
-To maintain backwards compatibility with that setting, we'll introduce _three_
-themes to `defaults.json`:
-
-```json
-    "themes": [
-        {
-            "name": "light",
-            "window":{
-              "applicationTheme": "light"
-            },
-        },
-        {
-            "name": "dark",
-            "window":{
-              "applicationTheme": "dark"
-            },
-        },
-        {
-            "name": "system",
-            "window":{
-              "applicationTheme": "system"
-            },
-        }
-    ]
-```
-
-Each of these themes will only define one property by default: the
-`window.applicationTheme` property, which is now responsible for setting the
-XAML `RequestedTheme` property. With these default themes, the user will still
-be able to use the old names seamlessly to get the same behavior.
-
-Additionally, the user will NOT be able to override these built-in themes.
-Experience trying to not serialize the default color schemes has proven
-exceptionally tricky, so we're not going to allow that for the built-in themes.
-The user will always need to fork them to create a new theme. If they're found
-in the user settings file, we'll just ignore them.
-
-
-## UI/UX Design
-
-[TODO!]: # TODO: We should include more mockups here. That would be nice.
-
-![Tab matches Terminal background](Tab-Matches-Terminal-Color-000.png)
-_fig 1_: Using a tab color set to "terminalBackground". The Windows PowerShell
-tab has also set its color with the color picker.
-
-![Acrylic in the titlebar](AcrylicInTitlebar.png)
-_fig 2_: Using an acrylic titlebar color, with a tab color set to
-"terminalBackground"
-
-![Titlebar matches Terminal background](AcrylicTerminalBackgroundInTitlebar.png)
-_fig 3_: Using an acrylic terminal background, and the titlebar color is set to
-"terminalBackground"
-
-![Whole window background image](whole-window-background-000.png) _fig
-4_: Using a single image as the background for the window, with a transparent
-tab row, and rounded bottoms on the TabViewItems. Courtesy of
-[@Shomnipotence](https://github.com/microsoft/terminal/issues/3327#issuecomment-765493313)
-
-![Tabs with bottom corner radius set](tab-buttons-000.png) _fig
-5_: Using a bottom corner radius to make tabs appear like buttons on the tab row. Courtesy of
-[@simioni](https://github.com/microsoft/terminal/issues/3774#issuecomment-609408305)
-
-
-[TODO!]: # TODO: Settings UI mocks? These pretty substantially affect the UI.
-<!-- We probably need to expose them in the UI in some way, and not just leave them as "power user settings" -->
-
-## Potential Issues
-
-It's totally possible for the user to set some sort of theme that just looks
-bad. This is absolutely a "beauty in the eye of the beholder" situation - not
-everyone is going to like the appearance of every theme. The goal of the
-Terminal is to provide a basic theme that's appropriate for anyone, but empower
-users to customize the terminal however they see fit. If the user chooses a
-theme that's not particularly appealing, they can always change it back.
-
-### Accessibility
-
-For people using the default theming, there should not be any particular
-regressions. However, this change does open up the Terminal to changes that
-might make the Terminal less accessible with certain theme configurations. As
-these themes would all be user-defined and controlled by the user, we're not
-concerned that this will be much of an issue. If a user finds one of their
-themes is less accessible, they can always change the theme to be more
-appropriate for them, or even switch to another theme.
-
-Furthermore, this might _help_ certain accessibility stories. Users could pick
-themes with _even more_ contrast than the Terminal provides by default, or
-larger font sizes, which might help make parts of the Terminal _more_ visible
-than the default UI.
-
-### Security
-
-This should not introduce any _new_ security concerns. We're relying on the
-security of jsoncpp for parsing json. Adding new keys to the settings file
-will rely on jsoncpp's ability to securely parse those json values.
-
-### Reliability
-
-This change should not have any particular reliability concerns.
-
-### Compatibility
-
-The biggest compatibility concern is regarding the existing values for the
-`theme` property, which is addressed above.
-
-#### `useAcrylicInTabRow` migration
-
-[TODO!]: # TODO: Deprecating the current titlebar acrylic setting, or totally overriding in theme.
-
-#### `experimental.useBackgroundImageForWindow` migration
-
-[TODO!]: # TODO: Deprecating the current setting or migrating or whatever
-
-
-### Performance, Power, and Efficiency
-
-This change should not have any particular performance concerns. Additional
-acrylic usage might impact battery life. There's not much concern for any
-substantial new impacts, however.
-
-### Branding
-
-Are we concerned that by enabling theming, the appearance of the Terminal won't
-be as static, and won't necessarily have as specific a look? It might be harder
-for potential users see a screenshot of the Terminal and _know_ "Thats the
-Windows Terminal". Is this something we're really all that concerned about
-though? If this is something users want (it is), then shouldn't that be what
-matters?
-
-### Titlebar complications
-
-Unfortunately, the original User32 titlebar is actually always drawn underneath
-our titlebar. Even when the tabs are in the titlebar, that's actually just XAML
-content drawn on top of the original frame. The rest of the window is
-transparent, but the titlebar is there.
-
-Our design to enable unfocused acrylic to work relies on in-app acrylic to allow
-the acrylic to blur with the transparent window contents. However, since the
-User32 titlebar is always there, in-app acrylic would end up always blurring
-_the original titlebar_, which looks ridiculous. This means we can't have
-unfocused acrylic without showing that titlebar. We'd rather remove that
-foot gun, and make it explicit that this setting does not exist.
-
-### Light & dark mode theming
-
-One request that comes up with frequency is the ability to change the color
-scheme of a profile automatically based on the system theme. Many users have
-scripts that automatically change between light and dark theme in the OS based
-on time of day.
-
-One thing this design does not do well is account for such theme-switching
-scenarios. This design assumes a static set of colors for a whole Terminal
-theme, regardless of whatever `window.applicationTheme` is set to. Should the
-user leave `window.applicationTheme` set to `system`, it's entirely likely that
-they would like the rest of their colors to automatically update to match.
-
-To address this, we'll allow the window-level `theme` property to not only allow
-a string for a name-based lookup in the list of themes, but als an object. That
-object will accept two properties: `light` and `dark`. Each of these accepts a
-string representing the name of a theme to use for that specific OS theme. These
-strings will default to `"light"` and `"dark"` respectively.
-```jsonc
-{
-    "theme": {
-        "light": "my light theme",
-        "dark": "my dark theme"
-    }
-}
-```
-
-<!-- Also considered: allow the user to set their own brushes as part of a theme, like:
-```jsonc
-{
-    "name": "My theme aware theme",
-    "brushes": {
-        "light": {
-            "Foo": "#ff0000"
-        },
-        "dark": {
-            "Foo": "#00ff00"
-        }
-    },
-    "window.applicationTheme": "system",
-    "tabRow.background": "key:Foo",
-}
-```
-This seemed far too complicated to actually understand. -->
-
-### Admin window themes
-
-[TODO!]: # TODO! Any clever ideas?
-
-Same idea as the light vs dark mode theme ideas. How should users be able to
-style admin vs regular windows?
-
-## Addenda
-
-This spec also has a follow-up spec which elaborates on the complexities of Mica
-in the Terminal. Please also refer to:
-
-* [Mica in the Terminal]
-
-## Future considerations
-
-* Mentioned in [#7005] was the idea of shipping a default theme that had values
-  aligned with the appearance of the Edge browser. Perhaps something like:
-  ```jsonc
-  {
-      "name": "Edge",
-      "window":{
-        "applicationTheme": "system"
-      },
-      "tab": {
-        "background": "#whatever-color-edge-is" // Might need a "key:" resource here for light/dark theme switching
-      },
-      "tabRow":{
-        "background": "accent",
-      }
-  },
-  ```
-* Applications should be able to install themes as fragments.
-  - We probably shouldn't allow layering for fragment themes - don't want
-    `foo.exe` installing a `light` theme that totally overrides the built-in
-    one. Right? **TODO! DISCUSSION**
-* ~I don't think it's unreasonable to implement support for `theme` as either a
-  string or an object. If `theme` is a string, then we can do a name-based
-  lookup in a table of themes. If it's an object, we can just use that object
-  immediately. Doing this might provide a simpler implementation plan whereby we
-  allow `"default"|"light"|"dark"|{object}` at first, and then later add the
-  list of themes.~
-  - This was a cool idea, but ultimately discarded in favor of the OS light/dark
-    theme switching, which needed the object version of `theme` to be reserved
-    for the OS mode lookup.
-* A cool idea from discussion: `window.highContrastSchemes` as a theme member
-  that controls a per-control property. This would override the color scheme of
-  any pane with a high contrast version, ignoring any colors emitted by the
-  client application. Details are left for a future spec.
-
-#### Theming v2 Properties
-
-* `tab.padding`: Control the padding _within_ a tab between the text and the
-  "sides" of the tab
-* `tab.textColor`: Change the color of the text on a tab
-* `tabRow.shadows`: Enable/disable the tab "shadows"
-  - note that they're enabled by default and already nearly impossible to see in
-    dark mode.
-* `tabRow.height`: Change the height of the tab row.
-* `tabRow.underlineHeight`: Controls the height of a border placed between the
-  tab row and the Terminal panes beneath it. This border doesn't exist
-  currently.
-* `tabRow.underlineColor`: Controls the color of the aforementioned underline
-* `window.frameColor`: The `DWMWA_BORDER_COLOR` DWM attribute is [SUPER fun to
-  play with], and trivial to set. We should definitely exposed it.
-
-<!-- Footnotes -->
-
-[iTerm2-Color-Schemes]: https://github.com/mbadolato/iTerm2-Color-Schemes
-[#3061]: https://github.com/microsoft/terminal/issues/3061
-[#3062]: https://github.com/microsoft/terminal/issues/3062
-[#702]: https://github.com/microsoft/terminal/issues/702
-[#1337]: https://github.com/microsoft/terminal/issues/1337
-[#2994]: https://github.com/microsoft/terminal/issues/2994
-[#3774]: https://github.com/microsoft/terminal/issues/3774
-[#3789]: https://github.com/microsoft/terminal/pull/3789
-[#1963]: https://github.com/microsoft/terminal/issues/1963
-[#3335]: https://github.com/microsoft/terminal/issues/3335
-[#3459]: https://github.com/microsoft/terminal/issues/3459
-[#7005]: https://github.com/microsoft/terminal/issues/7005
-
-[#5280]: https://github.com/microsoft/terminal/pull/5280
-
-[microsoft-ui-xaml#2201]: https://github.com/microsoft/microsoft-ui-xaml/pull/2201#issuecomment-606888293
-[#12893]: https://github.com/microsoft/terminal/pull/12893
-[Mica in the Terminal]: ./%2310509%20-%20Mica.md
-[Mica Spec]: ./%2310509%20-%20Mica.md
-[SUPER fun to play with]: https://github.com/microsoft/terminal/issues/12950
-[fragment extensions]: https://docs.microsoft.com/en-us/windows/terminal/json-fragment-extensions
--- a/Theming/AcrylicInTitlebar.png
+++ b/Theming/AcrylicInTitlebar.png
--- a/Theming/AcrylicTerminalBackgroundInTitlebar.png
+++ b/Theming/AcrylicTerminalBackgroundInTitlebar.png
--- a/Theming/Tab-Matches-Terminal-Color-000.png
+++ b/Theming/Tab-Matches-Terminal-Color-000.png
--- a/Theming/mica-in-control-000.png
+++ b/Theming/mica-in-control-000.png
--- a/Theming/tab-buttons-000.png
+++ b/Theming/tab-buttons-000.png
--- a/Theming/whole-window-background-000.png
+++ b/Theming/whole-window-background-000.png
--- a/doc/specs/drafts/576-ProfilesJumplistSpec.md
+++ b/doc/specs/drafts/576-ProfilesJumplistSpec.md
@@ -114,7 +114,7 @@ The jumplist will have to be saved each time a profile change occurs but the fre

 #### Should it open a new instance of the terminal or open in a new tab?

-#### What should happen if a nonexistent profile is launched
+#### What should happen if a non existent profile is launched
 The jumplist is only updated when the application is running so the profiles could be modified or deleted outside and the jumplist will not be updated. Handling will be done by whatever handles the command line parsing.

 ## Future considerations
--- a/oss/boost/MAINTAINER_README.md
+++ b/oss/boost/MAINTAINER_README.md
@@ -0,0 +1,15 @@
+### Notes for Future Maintainers
+
+This was originally imported by @Austin-Lamb in December 2020.
+
+The provenance information (where it came from and which commit) is stored in the file `cgmanifest.json` in the same directory as this readme.
+Please update the provenance information in that file when ingesting an updated version of the dependent library.
+That provenance file is automatically read and inventoried by Microsoft systems to ensure compliance with appropriate governance standards.
+
+## What should be done to update this in the future?
+
+1. Download the version of boost you want from boost.org.
+2. Take the parts you want, but leave most of it behind since it's HUGE and will bloat the repo to take it all.  At the time of this writing, we only use small_vector.hpp and its dependencies as a header-only library.
+3. Validate that the license in the root of the repository didn't change and update it if so. It is sitting in a version-specific subdirectory below this readme. 
+   If it changed dramatically, ensure that it is still compatible with our license scheme. Also update the NOTICE file in the root of our repository to declare the third-party usage.
+4. Submit the pull.
--- a/oss/boost/boost_1_73_0/LICENSE_1_0.txt
+++ b/oss/boost/boost_1_73_0/LICENSE_1_0.txt
@@ -0,0 +1,23 @@
+Boost Software License - Version 1.0 - August 17th, 2003
+
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
--- a/oss/boost/boost_1_73_0/README.md
+++ b/oss/boost/boost_1_73_0/README.md
@@ -0,0 +1,11 @@
+# Boost C++ Libraries
+
+The Boost project provides free peer-reviewed portable C++ source libraries.
+
+We emphasize libraries that work well with the C++ Standard Library. Boost
+libraries are intended to be widely useful, and usable across a broad spectrum
+of applications. The Boost license encourages both commercial and non-commercial use
+and does not require attribution for binary use.
+
+The project website is www.boost.org, where you can obtain more information and
+[download](https://www.boost.org/users/download/) the current release.
--- a/oss/boost/boost_1_73_0/boost/assert.hpp
+++ b/oss/boost/boost_1_73_0/boost/assert.hpp
@@ -0,0 +1,85 @@
+//
+//  boost/assert.hpp - BOOST_ASSERT(expr)
+//                     BOOST_ASSERT_MSG(expr, msg)
+//                     BOOST_VERIFY(expr)
+//                     BOOST_VERIFY_MSG(expr, msg)
+//                     BOOST_ASSERT_IS_VOID
+//
+//  Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
+//  Copyright (c) 2007, 2014 Peter Dimov
+//  Copyright (c) Beman Dawes 2011
+//  Copyright (c) 2015 Ion Gaztanaga
+//
+//  Distributed under the Boost Software License, Version 1.0.
+//  See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt
+//
+//  Note: There are no include guards. This is intentional.
+//
+//  See http://www.boost.org/libs/assert/assert.html for documentation.
+//
+
+//
+// Stop inspect complaining about use of 'assert':
+//
+// boostinspect:naassert_macro
+//
+
+//
+// BOOST_ASSERT, BOOST_ASSERT_MSG, BOOST_ASSERT_IS_VOID
+//
+
+#undef BOOST_ASSERT
+#undef BOOST_ASSERT_MSG
+#undef BOOST_ASSERT_IS_VOID
+
+#if defined(BOOST_DISABLE_ASSERTS) || ( defined(BOOST_ENABLE_ASSERT_DEBUG_HANDLER) && defined(NDEBUG) )
+
+# define BOOST_ASSERT(expr) ((void)0)
+# define BOOST_ASSERT_MSG(expr, msg) ((void)0)
+# define BOOST_ASSERT_IS_VOID
+
+#elif defined(BOOST_ENABLE_ASSERT_HANDLER) || ( defined(BOOST_ENABLE_ASSERT_DEBUG_HANDLER) && !defined(NDEBUG) )
+
+#include <boost/config.hpp> // for BOOST_LIKELY
+#include <boost/current_function.hpp>
+
+namespace boost
+{
+    void assertion_failed(char const * expr, char const * function, char const * file, long line); // user defined
+    void assertion_failed_msg(char const * expr, char const * msg, char const * function, char const * file, long line); // user defined
+} // namespace boost
+
+#define BOOST_ASSERT(expr) (BOOST_LIKELY(!!(expr))? ((void)0): ::boost::assertion_failed(#expr, BOOST_CURRENT_FUNCTION, __FILE__, __LINE__))
+#define BOOST_ASSERT_MSG(expr, msg) (BOOST_LIKELY(!!(expr))? ((void)0): ::boost::assertion_failed_msg(#expr, msg, BOOST_CURRENT_FUNCTION, __FILE__, __LINE__))
+
+#else
+
+# include <assert.h> // .h to support old libraries w/o <cassert> - effect is the same
+
+# define BOOST_ASSERT(expr) assert(expr)
+# define BOOST_ASSERT_MSG(expr, msg) assert((expr)&&(msg))
+#if defined(NDEBUG)
+# define BOOST_ASSERT_IS_VOID
+#endif
+
+#endif
+
+//
+// BOOST_VERIFY, BOOST_VERIFY_MSG
+//
+
+#undef BOOST_VERIFY
+#undef BOOST_VERIFY_MSG
+
+#if defined(BOOST_DISABLE_ASSERTS) || ( !defined(BOOST_ENABLE_ASSERT_HANDLER) && defined(NDEBUG) )
+
+# define BOOST_VERIFY(expr) ((void)(expr))
+# define BOOST_VERIFY_MSG(expr, msg) ((void)(expr))
+
+#else
+
+# define BOOST_VERIFY(expr) BOOST_ASSERT(expr)
+# define BOOST_VERIFY_MSG(expr, msg) BOOST_ASSERT_MSG(expr,msg)
+
+#endif
--- a/oss/boost/boost_1_73_0/boost/config.hpp
+++ b/oss/boost/boost_1_73_0/boost/config.hpp
@@ -0,0 +1,67 @@
+//  Boost config.hpp configuration header file  ------------------------------//
+
+//  (C) Copyright John Maddock 2002.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/config for most recent version.
+
+//  Boost config.hpp policy and rationale documentation has been moved to
+//  http://www.boost.org/libs/config
+//
+//  CAUTION: This file is intended to be completely stable -
+//           DO NOT MODIFY THIS FILE!
+//
+
+#ifndef BOOST_CONFIG_HPP
+#define BOOST_CONFIG_HPP
+
+// if we don't have a user config, then use the default location:
+#if !defined(BOOST_USER_CONFIG) && !defined(BOOST_NO_USER_CONFIG)
+#  define BOOST_USER_CONFIG <boost/config/user.hpp>
+#if 0
+// For dependency trackers:
+#  include <boost/config/user.hpp>
+#endif
+#endif
+// include it first:
+#ifdef BOOST_USER_CONFIG
+#  include BOOST_USER_CONFIG
+#endif
+
+// if we don't have a compiler config set, try and find one:
+#if !defined(BOOST_COMPILER_CONFIG) && !defined(BOOST_NO_COMPILER_CONFIG) && !defined(BOOST_NO_CONFIG)
+#  include <boost/config/detail/select_compiler_config.hpp>
+#endif
+// if we have a compiler config, include it now:
+#ifdef BOOST_COMPILER_CONFIG
+#  include BOOST_COMPILER_CONFIG
+#endif
+
+// if we don't have a std library config set, try and find one:
+#if !defined(BOOST_STDLIB_CONFIG) && !defined(BOOST_NO_STDLIB_CONFIG) && !defined(BOOST_NO_CONFIG) && defined(__cplusplus)
+#  include <boost/config/detail/select_stdlib_config.hpp>
+#endif
+// if we have a std library config, include it now:
+#ifdef BOOST_STDLIB_CONFIG
+#  include BOOST_STDLIB_CONFIG
+#endif
+
+// if we don't have a platform config set, try and find one:
+#if !defined(BOOST_PLATFORM_CONFIG) && !defined(BOOST_NO_PLATFORM_CONFIG) && !defined(BOOST_NO_CONFIG)
+#  include <boost/config/detail/select_platform_config.hpp>
+#endif
+// if we have a platform config, include it now:
+#ifdef BOOST_PLATFORM_CONFIG
+#  include BOOST_PLATFORM_CONFIG
+#endif
+
+// get config suffix code:
+#include <boost/config/detail/suffix.hpp>
+
+#ifdef BOOST_HAS_PRAGMA_ONCE
+#pragma once
+#endif
+
+#endif  // BOOST_CONFIG_HPP
--- a/oss/boost/boost_1_73_0/boost/config/abi/borland_prefix.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/abi/borland_prefix.hpp
@@ -0,0 +1,27 @@
+//  (C) Copyright John Maddock 2003. 
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  for C++ Builder the following options effect the ABI:
+//
+//  -b (on or off - effect emum sizes)
+//  -Vx  (on or off - empty members)
+//  -Ve (on or off - empty base classes)
+//  -aX (alignment - 5 options).
+//  -pX (Calling convention - 4 options)
+//  -VmX (member pointer size and layout - 5 options)
+//  -VC (on or off, changes name mangling)
+//  -Vl (on or off, changes struct layout).
+
+//  In addition the following warnings are sufficiently annoying (and
+//  unfixable) to have them turned off by default:
+//
+//  8027 - functions containing [for|while] loops are not expanded inline
+//  8026 - functions taking class by value arguments are not expanded inline
+
+#pragma nopushoptwarn
+#  pragma option push -a8 -Vx- -Ve- -b- -pc -Vmv -VC- -Vl- -w-8027 -w-8026
+
+
+
--- a/oss/boost/boost_1_73_0/boost/config/abi/borland_suffix.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/abi/borland_suffix.hpp
@@ -0,0 +1,12 @@
+//  (C) Copyright John Maddock 2003. 
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#  pragma option pop
+#pragma nopushoptwarn
+
+
+
+
+
--- a/oss/boost/boost_1_73_0/boost/config/abi/msvc_prefix.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/abi/msvc_prefix.hpp
@@ -0,0 +1,22 @@
+//  (C) Copyright John Maddock 2003. 
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//
+// Boost binaries are built with the compiler's default ABI settings,
+// if the user changes their default alignment in the VS IDE then their
+// code will no longer be binary compatible with the bjam built binaries
+// unless this header is included to force Boost code into a consistent ABI.
+//
+// Note that inclusion of this header is only necessary for libraries with 
+// separate source, header only libraries DO NOT need this as long as all
+// translation units are built with the same options.
+//
+#if defined(_M_X64)
+#  pragma pack(push,16)
+#else
+#  pragma pack(push,8)
+#endif
+
+
--- a/oss/boost/boost_1_73_0/boost/config/abi/msvc_suffix.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/abi/msvc_suffix.hpp
@@ -0,0 +1,8 @@
+//  (C) Copyright John Maddock 2003. 
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#pragma pack(pop)
+
+
--- a/oss/boost/boost_1_73_0/boost/config/abi_prefix.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/abi_prefix.hpp
@@ -0,0 +1,25 @@
+//  abi_prefix header  -------------------------------------------------------//
+
+// (c) Copyright John Maddock 2003
+   
+// Use, modification and distribution are subject to the Boost Software License,
+// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt).
+
+#ifndef BOOST_CONFIG_ABI_PREFIX_HPP
+# define BOOST_CONFIG_ABI_PREFIX_HPP
+#else
+# error double inclusion of header boost/config/abi_prefix.hpp is an error
+#endif
+
+#include <boost/config.hpp>
+
+// this must occur after all other includes and before any code appears:
+#ifdef BOOST_HAS_ABI_HEADERS
+#  include BOOST_ABI_PREFIX
+#endif
+
+#if defined( __BORLANDC__ )
+#pragma nopushoptwarn
+#endif
+
--- a/oss/boost/boost_1_73_0/boost/config/abi_suffix.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/abi_suffix.hpp
@@ -0,0 +1,27 @@
+//  abi_sufffix header  -------------------------------------------------------//
+
+// (c) Copyright John Maddock 2003
+   
+// Use, modification and distribution are subject to the Boost Software License,
+// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt).
+
+// This header should be #included AFTER code that was preceded by a #include
+// <boost/config/abi_prefix.hpp>.
+
+#ifndef BOOST_CONFIG_ABI_PREFIX_HPP
+# error Header boost/config/abi_suffix.hpp must only be used after boost/config/abi_prefix.hpp
+#else
+# undef BOOST_CONFIG_ABI_PREFIX_HPP
+#endif
+
+// the suffix header occurs after all of our code:
+#ifdef BOOST_HAS_ABI_HEADERS
+#  include BOOST_ABI_SUFFIX
+#endif
+
+#if defined( __BORLANDC__ )
+#pragma nopushoptwarn
+#endif
+
+
--- a/oss/boost/boost_1_73_0/boost/config/auto_link.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/auto_link.hpp
@@ -0,0 +1,485 @@
+//  (C) Copyright John Maddock 2003.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+ /*
+  *   LOCATION:    see http://www.boost.org for most recent version.
+  *   FILE         auto_link.hpp
+  *   VERSION      see <boost/version.hpp>
+  *   DESCRIPTION: Automatic library inclusion for Borland/Microsoft compilers.
+  */
+
+/*************************************************************************
+
+USAGE:
+~~~~~~
+
+Before including this header you must define one or more of define the following macros:
+
+BOOST_LIB_NAME:           Required: A string containing the basename of the library,
+                          for example boost_regex.
+BOOST_LIB_TOOLSET:        Optional: the base name of the toolset.
+BOOST_DYN_LINK:           Optional: when set link to dll rather than static library.
+BOOST_LIB_DIAGNOSTIC:     Optional: when set the header will print out the name
+                          of the library selected (useful for debugging).
+BOOST_AUTO_LINK_NOMANGLE: Specifies that we should link to BOOST_LIB_NAME.lib,
+                          rather than a mangled-name version.
+BOOST_AUTO_LINK_TAGGED:   Specifies that we link to libraries built with the --layout=tagged option.
+                          This is essentially the same as the default name-mangled version, but without
+                          the compiler name and version, or the Boost version.  Just the build options.
+BOOST_AUTO_LINK_SYSTEM:   Specifies that we link to libraries built with the --layout=system option.
+                          This is essentially the same as the non-name-mangled version, but with
+                          the prefix to differentiate static and dll builds
+
+These macros will be undef'ed at the end of the header, further this header
+has no include guards - so be sure to include it only once from your library!
+
+Algorithm:
+~~~~~~~~~~
+
+Libraries for Borland and Microsoft compilers are automatically
+selected here, the name of the lib is selected according to the following
+formula:
+
+BOOST_LIB_PREFIX
+   + BOOST_LIB_NAME
+   + "_"
+   + BOOST_LIB_TOOLSET
+   + BOOST_LIB_THREAD_OPT
+   + BOOST_LIB_RT_OPT
+   + BOOST_LIB_ARCH_AND_MODEL_OPT
+   "-"
+   + BOOST_LIB_VERSION
+
+These are defined as:
+
+BOOST_LIB_PREFIX:     "lib" for static libraries otherwise "".
+
+BOOST_LIB_NAME:       The base name of the lib ( for example boost_regex).
+
+BOOST_LIB_TOOLSET:    The compiler toolset name (vc6, vc7, bcb5 etc).
+
+BOOST_LIB_THREAD_OPT: "-mt" for multithread builds, otherwise nothing.
+
+BOOST_LIB_RT_OPT:     A suffix that indicates the runtime library used,
+                      contains one or more of the following letters after
+                      a hyphen:
+
+                      s      static runtime (dynamic if not present).
+                      g      debug/diagnostic runtime (release if not present).
+                      y      Python debug/diagnostic runtime (release if not present).
+                      d      debug build (release if not present).
+                      p      STLport build.
+                      n      STLport build without its IOStreams.
+
+BOOST_LIB_ARCH_AND_MODEL_OPT: The architecture and address model
+                              (-x32 or -x64 for x86/32 and x86/64 respectively)
+
+BOOST_LIB_VERSION:    The Boost version, in the form x_y, for Boost version x.y.
+
+
+***************************************************************************/
+
+#ifdef __cplusplus
+#  ifndef BOOST_CONFIG_HPP
+#     include <boost/config.hpp>
+#  endif
+#elif defined(_MSC_VER) && !defined(__MWERKS__) && !defined(__EDG_VERSION__)
+//
+// C language compatability (no, honestly)
+//
+#  define BOOST_MSVC _MSC_VER
+#  define BOOST_STRINGIZE(X) BOOST_DO_STRINGIZE(X)
+#  define BOOST_DO_STRINGIZE(X) #X
+#endif
+//
+// Only include what follows for known and supported compilers:
+//
+#if defined(BOOST_MSVC) \
+    || defined(__BORLANDC__) \
+    || (defined(__MWERKS__) && defined(_WIN32) && (__MWERKS__ >= 0x3000)) \
+    || (defined(__ICL) && defined(_MSC_EXTENSIONS) && (_MSC_VER >= 1200)) \
+    || (defined(BOOST_CLANG) && defined(BOOST_WINDOWS) && defined(_MSC_VER) && (__clang_major__ >= 4))
+
+#ifndef BOOST_VERSION_HPP
+#  include <boost/version.hpp>
+#endif
+
+#ifndef BOOST_LIB_NAME
+#  error "Macro BOOST_LIB_NAME not set (internal error)"
+#endif
+
+//
+// error check:
+//
+#if defined(__MSVC_RUNTIME_CHECKS) && !defined(_DEBUG)
+#  pragma message("Using the /RTC option without specifying a debug runtime will lead to linker errors")
+#  pragma message("Hint: go to the code generation options and switch to one of the debugging runtimes")
+#  error "Incompatible build options"
+#endif
+//
+// select toolset if not defined already:
+//
+#ifndef BOOST_LIB_TOOLSET
+#  if defined(BOOST_MSVC) && (BOOST_MSVC < 1200)
+    // Note: no compilers before 1200 are supported
+#  elif defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
+
+#    ifdef UNDER_CE
+       // eVC4:
+#      define BOOST_LIB_TOOLSET "evc4"
+#    else
+       // vc6:
+#      define BOOST_LIB_TOOLSET "vc6"
+#    endif
+
+#  elif defined(BOOST_MSVC) && (BOOST_MSVC < 1310)
+
+     // vc7:
+#    define BOOST_LIB_TOOLSET "vc7"
+
+#  elif defined(BOOST_MSVC) && (BOOST_MSVC < 1400)
+
+     // vc71:
+#    define BOOST_LIB_TOOLSET "vc71"
+
+#  elif defined(BOOST_MSVC) && (BOOST_MSVC < 1500)
+
+     // vc80:
+#    define BOOST_LIB_TOOLSET "vc80"
+
+#  elif defined(BOOST_MSVC) && (BOOST_MSVC < 1600)
+
+     // vc90:
+#    define BOOST_LIB_TOOLSET "vc90"
+
+#  elif defined(BOOST_MSVC) && (BOOST_MSVC < 1700)
+
+     // vc10:
+#    define BOOST_LIB_TOOLSET "vc100"
+
+#  elif defined(BOOST_MSVC) && (BOOST_MSVC < 1800)
+
+     // vc11:
+#    define BOOST_LIB_TOOLSET "vc110"
+
+#  elif defined(BOOST_MSVC) && (BOOST_MSVC < 1900)
+
+     // vc12:
+#    define BOOST_LIB_TOOLSET "vc120"
+
+#  elif defined(BOOST_MSVC) && (BOOST_MSVC < 1910)
+
+     // vc14:
+#    define BOOST_LIB_TOOLSET "vc140"
+
+#  elif defined(BOOST_MSVC) && (BOOST_MSVC < 1920)
+
+     // vc14.1:
+#    define BOOST_LIB_TOOLSET "vc141"
+
+#  elif defined(BOOST_MSVC)
+
+     // vc14.2:
+#    define BOOST_LIB_TOOLSET "vc142"
+
+#  elif defined(__BORLANDC__)
+
+     // CBuilder 6:
+#    define BOOST_LIB_TOOLSET "bcb"
+
+#  elif defined(__ICL)
+
+     // Intel C++, no version number:
+#    define BOOST_LIB_TOOLSET "iw"
+
+#  elif defined(__MWERKS__) && (__MWERKS__ <= 0x31FF )
+
+     // Metrowerks CodeWarrior 8.x
+#    define BOOST_LIB_TOOLSET "cw8"
+
+#  elif defined(__MWERKS__) && (__MWERKS__ <= 0x32FF )
+
+     // Metrowerks CodeWarrior 9.x
+#    define BOOST_LIB_TOOLSET "cw9"
+
+#  elif defined(BOOST_CLANG) && defined(BOOST_WINDOWS) && defined(_MSC_VER) && (__clang_major__ >= 4)
+
+     // Clang on Windows
+#    define BOOST_LIB_TOOLSET "clangw" BOOST_STRINGIZE(__clang_major__)
+
+#  endif
+#endif // BOOST_LIB_TOOLSET
+
+//
+// select thread opt:
+//
+#if defined(_MT) || defined(__MT__)
+#  define BOOST_LIB_THREAD_OPT "-mt"
+#else
+#  define BOOST_LIB_THREAD_OPT
+#endif
+
+#if defined(_MSC_VER) || defined(__MWERKS__)
+
+#  ifdef _DLL
+
+#     if (defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION)) && (defined(_STLP_OWN_IOSTREAMS) || defined(__STL_OWN_IOSTREAMS))
+
+#        if defined(_DEBUG) && (defined(__STL_DEBUG) || defined(_STLP_DEBUG))\
+               && defined(BOOST_DEBUG_PYTHON) && defined(BOOST_LINKING_PYTHON)
+#            define BOOST_LIB_RT_OPT "-gydp"
+#        elif defined(_DEBUG) && (defined(__STL_DEBUG) || defined(_STLP_DEBUG))
+#            define BOOST_LIB_RT_OPT "-gdp"
+#        elif defined(_DEBUG)\
+               && defined(BOOST_DEBUG_PYTHON) && defined(BOOST_LINKING_PYTHON)
+#            define BOOST_LIB_RT_OPT "-gydp"
+#            pragma message("warning: STLport debug versions are built with /D_STLP_DEBUG=1")
+#            error "Build options aren't compatible with pre-built libraries"
+#        elif defined(_DEBUG)
+#            define BOOST_LIB_RT_OPT "-gdp"
+#            pragma message("warning: STLport debug versions are built with /D_STLP_DEBUG=1")
+#            error "Build options aren't compatible with pre-built libraries"
+#        else
+#            define BOOST_LIB_RT_OPT "-p"
+#        endif
+
+#     elif defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION)
+
+#        if defined(_DEBUG) && (defined(__STL_DEBUG) || defined(_STLP_DEBUG))\
+               && defined(BOOST_DEBUG_PYTHON) && defined(BOOST_LINKING_PYTHON)
+#            define BOOST_LIB_RT_OPT "-gydpn"
+#        elif defined(_DEBUG) && (defined(__STL_DEBUG) || defined(_STLP_DEBUG))
+#            define BOOST_LIB_RT_OPT "-gdpn"
+#        elif defined(_DEBUG)\
+               && defined(BOOST_DEBUG_PYTHON) && defined(BOOST_LINKING_PYTHON)
+#            define BOOST_LIB_RT_OPT "-gydpn"
+#            pragma message("warning: STLport debug versions are built with /D_STLP_DEBUG=1")
+#            error "Build options aren't compatible with pre-built libraries"
+#        elif defined(_DEBUG)
+#            define BOOST_LIB_RT_OPT "-gdpn"
+#            pragma message("warning: STLport debug versions are built with /D_STLP_DEBUG=1")
+#            error "Build options aren't compatible with pre-built libraries"
+#        else
+#            define BOOST_LIB_RT_OPT "-pn"
+#        endif
+
+#     else
+
+#        if defined(_DEBUG) && defined(BOOST_DEBUG_PYTHON) && defined(BOOST_LINKING_PYTHON)
+#            define BOOST_LIB_RT_OPT "-gyd"
+#        elif defined(_DEBUG)
+#            define BOOST_LIB_RT_OPT "-gd"
+#        else
+#            define BOOST_LIB_RT_OPT
+#        endif
+
+#     endif
+
+#  else
+
+#     if (defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION)) && (defined(_STLP_OWN_IOSTREAMS) || defined(__STL_OWN_IOSTREAMS))
+
+#        if defined(_DEBUG) && (defined(__STL_DEBUG) || defined(_STLP_DEBUG))\
+               && defined(BOOST_DEBUG_PYTHON) && defined(BOOST_LINKING_PYTHON)
+#            define BOOST_LIB_RT_OPT "-sgydp"
+#        elif defined(_DEBUG) && (defined(__STL_DEBUG) || defined(_STLP_DEBUG))
+#            define BOOST_LIB_RT_OPT "-sgdp"
+#        elif defined(_DEBUG)\
+               && defined(BOOST_DEBUG_PYTHON) && defined(BOOST_LINKING_PYTHON)
+#             define BOOST_LIB_RT_OPT "-sgydp"
+#            pragma message("warning: STLport debug versions are built with /D_STLP_DEBUG=1")
+#            error "Build options aren't compatible with pre-built libraries"
+#        elif defined(_DEBUG)
+#             define BOOST_LIB_RT_OPT "-sgdp"
+#            pragma message("warning: STLport debug versions are built with /D_STLP_DEBUG=1")
+#            error "Build options aren't compatible with pre-built libraries"
+#        else
+#            define BOOST_LIB_RT_OPT "-sp"
+#        endif
+
+#     elif defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION)
+
+#        if defined(_DEBUG) && (defined(__STL_DEBUG) || defined(_STLP_DEBUG))\
+               && defined(BOOST_DEBUG_PYTHON) && defined(BOOST_LINKING_PYTHON)
+#            define BOOST_LIB_RT_OPT "-sgydpn"
+#        elif defined(_DEBUG) && (defined(__STL_DEBUG) || defined(_STLP_DEBUG))
+#            define BOOST_LIB_RT_OPT "-sgdpn"
+#        elif defined(_DEBUG)\
+               && defined(BOOST_DEBUG_PYTHON) && defined(BOOST_LINKING_PYTHON)
+#             define BOOST_LIB_RT_OPT "-sgydpn"
+#            pragma message("warning: STLport debug versions are built with /D_STLP_DEBUG=1")
+#            error "Build options aren't compatible with pre-built libraries"
+#        elif defined(_DEBUG)
+#             define BOOST_LIB_RT_OPT "-sgdpn"
+#            pragma message("warning: STLport debug versions are built with /D_STLP_DEBUG=1")
+#            error "Build options aren't compatible with pre-built libraries"
+#        else
+#            define BOOST_LIB_RT_OPT "-spn"
+#        endif
+
+#     else
+
+#        if defined(_DEBUG)\
+               && defined(BOOST_DEBUG_PYTHON) && defined(BOOST_LINKING_PYTHON)
+#             define BOOST_LIB_RT_OPT "-sgyd"
+#        elif defined(_DEBUG)
+#             define BOOST_LIB_RT_OPT "-sgd"
+#        else
+#            define BOOST_LIB_RT_OPT "-s"
+#        endif
+
+#     endif
+
+#  endif
+
+#elif defined(__BORLANDC__)
+
+//
+// figure out whether we want the debug builds or not:
+//
+#if __BORLANDC__ > 0x561
+#pragma defineonoption BOOST_BORLAND_DEBUG -v
+#endif
+//
+// sanity check:
+//
+#if defined(__STL_DEBUG) || defined(_STLP_DEBUG)
+#error "Pre-built versions of the Boost libraries are not provided in STLport-debug form"
+#endif
+
+#  ifdef _RTLDLL
+
+#     if defined(BOOST_BORLAND_DEBUG)\
+               && defined(BOOST_DEBUG_PYTHON) && defined(BOOST_LINKING_PYTHON)
+#         define BOOST_LIB_RT_OPT "-yd"
+#     elif defined(BOOST_BORLAND_DEBUG)
+#         define BOOST_LIB_RT_OPT "-d"
+#     elif defined(BOOST_DEBUG_PYTHON) && defined(BOOST_LINKING_PYTHON)
+#         define BOOST_LIB_RT_OPT -y
+#     else
+#         define BOOST_LIB_RT_OPT
+#     endif
+
+#  else
+
+#     if defined(BOOST_BORLAND_DEBUG)\
+               && defined(BOOST_DEBUG_PYTHON) && defined(BOOST_LINKING_PYTHON)
+#         define BOOST_LIB_RT_OPT "-syd"
+#     elif defined(BOOST_BORLAND_DEBUG)
+#         define BOOST_LIB_RT_OPT "-sd"
+#     elif defined(BOOST_DEBUG_PYTHON) && defined(BOOST_LINKING_PYTHON)
+#         define BOOST_LIB_RT_OPT "-sy"
+#     else
+#         define BOOST_LIB_RT_OPT "-s"
+#     endif
+
+#  endif
+
+#endif
+
+//
+// BOOST_LIB_ARCH_AND_MODEL_OPT
+//
+
+#if defined( _M_IX86 )
+#  define BOOST_LIB_ARCH_AND_MODEL_OPT "-x32"
+#elif defined( _M_X64 )
+#  define BOOST_LIB_ARCH_AND_MODEL_OPT "-x64"
+#elif defined( _M_ARM )
+#  define BOOST_LIB_ARCH_AND_MODEL_OPT "-a32"
+#elif defined( _M_ARM64 )
+#  define BOOST_LIB_ARCH_AND_MODEL_OPT "-a64"
+#endif
+
+//
+// select linkage opt:
+//
+#if (defined(_DLL) || defined(_RTLDLL)) && defined(BOOST_DYN_LINK)
+#  define BOOST_LIB_PREFIX
+#elif defined(BOOST_DYN_LINK)
+#  error "Mixing a dll boost library with a static runtime is a really bad idea..."
+#else
+#  define BOOST_LIB_PREFIX "lib"
+#endif
+
+//
+// now include the lib:
+//
+#if defined(BOOST_LIB_NAME) \
+      && defined(BOOST_LIB_PREFIX) \
+      && defined(BOOST_LIB_TOOLSET) \
+      && defined(BOOST_LIB_THREAD_OPT) \
+      && defined(BOOST_LIB_RT_OPT) \
+      && defined(BOOST_LIB_ARCH_AND_MODEL_OPT) \
+      && defined(BOOST_LIB_VERSION)
+
+#ifdef BOOST_AUTO_LINK_TAGGED
+#  pragma comment(lib, BOOST_LIB_PREFIX BOOST_STRINGIZE(BOOST_LIB_NAME) BOOST_LIB_THREAD_OPT BOOST_LIB_RT_OPT BOOST_LIB_ARCH_AND_MODEL_OPT ".lib")
+#  ifdef BOOST_LIB_DIAGNOSTIC
+#     pragma message ("Linking to lib file: " BOOST_LIB_PREFIX BOOST_STRINGIZE(BOOST_LIB_NAME) BOOST_LIB_THREAD_OPT BOOST_LIB_RT_OPT BOOST_LIB_ARCH_AND_MODEL_OPT ".lib")
+#  endif
+#elif defined(BOOST_AUTO_LINK_SYSTEM)
+#  pragma comment(lib, BOOST_LIB_PREFIX BOOST_STRINGIZE(BOOST_LIB_NAME) ".lib")
+#  ifdef BOOST_LIB_DIAGNOSTIC
+#     pragma message ("Linking to lib file: " BOOST_LIB_PREFIX BOOST_STRINGIZE(BOOST_LIB_NAME) ".lib")
+#  endif
+#elif defined(BOOST_AUTO_LINK_NOMANGLE)
+#  pragma comment(lib, BOOST_STRINGIZE(BOOST_LIB_NAME) ".lib")
+#  ifdef BOOST_LIB_DIAGNOSTIC
+#     pragma message ("Linking to lib file: " BOOST_STRINGIZE(BOOST_LIB_NAME) ".lib")
+#  endif
+#elif defined(BOOST_LIB_BUILDID)
+#  pragma comment(lib, BOOST_LIB_PREFIX BOOST_STRINGIZE(BOOST_LIB_NAME) "-" BOOST_LIB_TOOLSET BOOST_LIB_THREAD_OPT BOOST_LIB_RT_OPT BOOST_LIB_ARCH_AND_MODEL_OPT "-" BOOST_LIB_VERSION "-" BOOST_STRINGIZE(BOOST_LIB_BUILDID) ".lib")
+#  ifdef BOOST_LIB_DIAGNOSTIC
+#     pragma message ("Linking to lib file: " BOOST_LIB_PREFIX BOOST_STRINGIZE(BOOST_LIB_NAME) "-" BOOST_LIB_TOOLSET BOOST_LIB_THREAD_OPT BOOST_LIB_RT_OPT BOOST_LIB_ARCH_AND_MODEL_OPT "-" BOOST_LIB_VERSION "-" BOOST_STRINGIZE(BOOST_LIB_BUILDID) ".lib")
+#  endif
+#else
+#  pragma comment(lib, BOOST_LIB_PREFIX BOOST_STRINGIZE(BOOST_LIB_NAME) "-" BOOST_LIB_TOOLSET BOOST_LIB_THREAD_OPT BOOST_LIB_RT_OPT BOOST_LIB_ARCH_AND_MODEL_OPT "-" BOOST_LIB_VERSION ".lib")
+#  ifdef BOOST_LIB_DIAGNOSTIC
+#     pragma message ("Linking to lib file: " BOOST_LIB_PREFIX BOOST_STRINGIZE(BOOST_LIB_NAME) "-" BOOST_LIB_TOOLSET BOOST_LIB_THREAD_OPT BOOST_LIB_RT_OPT BOOST_LIB_ARCH_AND_MODEL_OPT "-" BOOST_LIB_VERSION ".lib")
+#  endif
+#endif
+
+#else
+#  error "some required macros where not defined (internal logic error)."
+#endif
+
+
+#endif // _MSC_VER || __BORLANDC__
+
+//
+// finally undef any macros we may have set:
+//
+#ifdef BOOST_LIB_PREFIX
+#  undef BOOST_LIB_PREFIX
+#endif
+#if defined(BOOST_LIB_NAME)
+#  undef BOOST_LIB_NAME
+#endif
+// Don't undef this one: it can be set by the user and should be the 
+// same for all libraries:
+//#if defined(BOOST_LIB_TOOLSET)
+//#  undef BOOST_LIB_TOOLSET
+//#endif
+#if defined(BOOST_LIB_THREAD_OPT)
+#  undef BOOST_LIB_THREAD_OPT
+#endif
+#if defined(BOOST_LIB_RT_OPT)
+#  undef BOOST_LIB_RT_OPT
+#endif
+#if defined(BOOST_LIB_ARCH_AND_MODEL_OPT)
+#  undef BOOST_LIB_ARCH_AND_MODEL_OPT
+#endif
+#if defined(BOOST_LIB_LINK_OPT)
+#  undef BOOST_LIB_LINK_OPT
+#endif
+#if defined(BOOST_LIB_DEBUG_OPT)
+#  undef BOOST_LIB_DEBUG_OPT
+#endif
+#if defined(BOOST_DYN_LINK)
+#  undef BOOST_DYN_LINK
+#endif
+
+
--- a/oss/boost/boost_1_73_0/boost/config/compiler/borland.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/borland.hpp
@@ -0,0 +1,336 @@
+//  (C) Copyright John Maddock 2001 - 2003.
+//  (C) Copyright David Abrahams 2002 - 2003.
+//  (C) Copyright Aleksey Gurtovoy 2002.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+//  Borland C++ compiler setup:
+
+//
+// versions check:
+// we don't support Borland prior to version 5.4:
+#if __BORLANDC__ < 0x540
+#  error "Compiler not supported or configured - please reconfigure"
+#endif
+
+// last known compiler version:
+#if (__BORLANDC__ > 0x613)
+//#  if defined(BOOST_ASSERT_CONFIG)
+#     error "boost: Unknown compiler version - please run the configure tests and report the results"
+//#  else
+//#     pragma message( "boost: Unknown compiler version - please run the configure tests and report the results")
+//#  endif
+#elif (__BORLANDC__ == 0x600)
+#  error "CBuilderX preview compiler is no longer supported"
+#endif
+
+//
+// Support macros to help with standard library detection
+#if (__BORLANDC__ < 0x560) || defined(_USE_OLD_RW_STL)
+#  define BOOST_BCB_WITH_ROGUE_WAVE
+#elif __BORLANDC__ < 0x570
+#  define BOOST_BCB_WITH_STLPORT
+#else
+#  define BOOST_BCB_WITH_DINKUMWARE
+#endif
+
+//
+// Version 5.0 and below:
+#   if __BORLANDC__ <= 0x0550
+// Borland C++Builder 4 and 5:
+#     define BOOST_NO_MEMBER_TEMPLATE_FRIENDS
+#     if __BORLANDC__ == 0x0550
+// Borland C++Builder 5, command-line compiler 5.5:
+#       define BOOST_NO_OPERATORS_IN_NAMESPACE
+#     endif
+// Variadic macros do not exist for C++ Builder versions 5 and below
+#define BOOST_NO_CXX11_VARIADIC_MACROS
+#   endif
+
+// Version 5.51 and below:
+#if (__BORLANDC__ <= 0x551)
+#  define BOOST_NO_CV_SPECIALIZATIONS
+#  define BOOST_NO_CV_VOID_SPECIALIZATIONS
+#  define BOOST_NO_DEDUCED_TYPENAME
+// workaround for missing WCHAR_MAX/WCHAR_MIN:
+#ifdef __cplusplus
+#include <climits>
+#include <cwchar>
+#else
+#include <limits.h>
+#include <wchar.h>
+#endif // __cplusplus
+#ifndef WCHAR_MAX
+#  define WCHAR_MAX 0xffff
+#endif
+#ifndef WCHAR_MIN
+#  define WCHAR_MIN 0
+#endif
+#endif
+
+// Borland C++ Builder 6 and below:
+#if (__BORLANDC__ <= 0x564)
+
+#  if defined(NDEBUG) && defined(__cplusplus)
+      // fix broken <cstring> so that Boost.test works:
+#     include <cstring>
+#     undef strcmp
+#  endif
+   // fix broken errno declaration:
+#  include <errno.h>
+#  ifndef errno
+#     define errno errno
+#  endif
+
+#endif
+
+//
+// new bug in 5.61:
+#if (__BORLANDC__ >= 0x561) && (__BORLANDC__ <= 0x580)
+   // this seems to be needed by the command line compiler, but not the IDE:
+#  define BOOST_NO_MEMBER_FUNCTION_SPECIALIZATIONS
+#endif
+
+// Borland C++ Builder 2006 Update 2 and below:
+#if (__BORLANDC__ <= 0x582)
+#  define BOOST_NO_SFINAE
+#  define BOOST_BCB_PARTIAL_SPECIALIZATION_BUG
+#  define BOOST_NO_TEMPLATE_TEMPLATES
+
+#  define BOOST_NO_PRIVATE_IN_AGGREGATE
+
+#  ifdef _WIN32
+#     define BOOST_NO_SWPRINTF
+#  elif defined(linux) || defined(__linux__) || defined(__linux)
+      // we should really be able to do without this
+      // but the wcs* functions aren't imported into std::
+#     define BOOST_NO_STDC_NAMESPACE
+      // _CPPUNWIND doesn't get automatically set for some reason:
+#     pragma defineonoption BOOST_CPPUNWIND -x
+#  endif
+#endif
+
+#if (__BORLANDC__ <= 0x613)  // Beman has asked Alisdair for more info
+   // we shouldn't really need this - but too many things choke
+   // without it, this needs more investigation:
+#  define BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
+#  define BOOST_NO_IS_ABSTRACT
+#  define BOOST_NO_FUNCTION_TYPE_SPECIALIZATIONS
+#  define BOOST_NO_USING_TEMPLATE
+#  define BOOST_SP_NO_SP_CONVERTIBLE
+
+// Temporary workaround
+#define BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
+#endif
+
+// Borland C++ Builder 2008 and below:
+#  define BOOST_NO_INTEGRAL_INT64_T
+#  define BOOST_FUNCTION_SCOPE_USING_DECLARATION_BREAKS_ADL
+#  define BOOST_NO_DEPENDENT_NESTED_DERIVATIONS
+#  define BOOST_NO_MEMBER_TEMPLATE_FRIENDS
+#  define BOOST_NO_TWO_PHASE_NAME_LOOKUP
+#  define BOOST_NO_USING_DECLARATION_OVERLOADS_FROM_TYPENAME_BASE
+#  define BOOST_NO_NESTED_FRIENDSHIP
+#  define BOOST_NO_TYPENAME_WITH_CTOR
+#if (__BORLANDC__ < 0x600)
+#  define BOOST_ILLEGAL_CV_REFERENCES
+#endif
+
+//
+//  Positive Feature detection
+//
+// Borland C++ Builder 2008 and below:
+#if (__BORLANDC__ >= 0x599)
+#  pragma defineonoption BOOST_CODEGEAR_0X_SUPPORT -Ax
+#endif
+//
+// C++0x Macros:
+//
+#if !defined( BOOST_CODEGEAR_0X_SUPPORT ) || (__BORLANDC__ < 0x610)
+#  define BOOST_NO_CXX11_CHAR16_T
+#  define BOOST_NO_CXX11_CHAR32_T
+#  define BOOST_NO_CXX11_DECLTYPE
+#  define BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+#  define BOOST_NO_CXX11_EXTERN_TEMPLATE
+#  define BOOST_NO_CXX11_RVALUE_REFERENCES
+#  define BOOST_NO_CXX11_SCOPED_ENUMS
+#  define BOOST_NO_CXX11_STATIC_ASSERT
+#else
+#  define BOOST_HAS_ALIGNOF
+#  define BOOST_HAS_CHAR16_T
+#  define BOOST_HAS_CHAR32_T
+#  define BOOST_HAS_DECLTYPE
+#  define BOOST_HAS_EXPLICIT_CONVERSION_OPS
+#  define BOOST_HAS_REF_QUALIFIER
+#  define BOOST_HAS_RVALUE_REFS
+#  define BOOST_HAS_STATIC_ASSERT
+#endif
+
+#define BOOST_NO_CXX11_AUTO_DECLARATIONS
+#define BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
+#define BOOST_NO_CXX11_CONSTEXPR
+#define BOOST_NO_CXX11_DECLTYPE_N3276
+#define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#define BOOST_NO_CXX11_DEFAULTED_MOVES
+#define BOOST_NO_CXX11_DELETED_FUNCTIONS
+#define BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#define BOOST_NO_CXX11_HDR_INITIALIZER_LIST
+#define BOOST_NO_CXX11_LAMBDAS
+#define BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#define BOOST_NO_CXX11_NULLPTR
+#define BOOST_NO_CXX11_RANGE_BASED_FOR
+#define BOOST_NO_CXX11_RAW_LITERALS
+#define BOOST_NO_CXX11_RVALUE_REFERENCES
+#define BOOST_NO_CXX11_SCOPED_ENUMS
+#define BOOST_NO_SFINAE_EXPR
+#define BOOST_NO_CXX11_SFINAE_EXPR
+#define BOOST_NO_CXX11_TEMPLATE_ALIASES
+#define BOOST_NO_CXX11_UNICODE_LITERALS    // UTF-8 still not supported
+#define BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#define BOOST_NO_CXX11_NOEXCEPT
+#define BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#define BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#define BOOST_NO_CXX11_ALIGNAS
+#define BOOST_NO_CXX11_TRAILING_RESULT_TYPES
+#define BOOST_NO_CXX11_INLINE_NAMESPACES
+#define BOOST_NO_CXX11_REF_QUALIFIERS
+#define BOOST_NO_CXX11_FINAL
+#define BOOST_NO_CXX11_THREAD_LOCAL
+#define BOOST_NO_CXX11_UNRESTRICTED_UNION
+
+// C++ 14:
+#if !defined(__cpp_aggregate_nsdmi) || (__cpp_aggregate_nsdmi < 201304)
+#  define BOOST_NO_CXX14_AGGREGATE_NSDMI
+#endif
+#if !defined(__cpp_binary_literals) || (__cpp_binary_literals < 201304)
+#  define BOOST_NO_CXX14_BINARY_LITERALS
+#endif
+#if !defined(__cpp_constexpr) || (__cpp_constexpr < 201304)
+#  define BOOST_NO_CXX14_CONSTEXPR
+#endif
+#if !defined(__cpp_decltype_auto) || (__cpp_decltype_auto < 201304)
+#  define BOOST_NO_CXX14_DECLTYPE_AUTO
+#endif
+#if (__cplusplus < 201304) // There's no SD6 check for this....
+#  define BOOST_NO_CXX14_DIGIT_SEPARATORS
+#endif
+#if !defined(__cpp_generic_lambdas) || (__cpp_generic_lambdas < 201304)
+#  define BOOST_NO_CXX14_GENERIC_LAMBDAS
+#endif
+#if !defined(__cpp_init_captures) || (__cpp_init_captures < 201304)
+#  define BOOST_NO_CXX14_INITIALIZED_LAMBDA_CAPTURES
+#endif
+#if !defined(__cpp_return_type_deduction) || (__cpp_return_type_deduction < 201304)
+#  define BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION
+#endif
+#if !defined(__cpp_variable_templates) || (__cpp_variable_templates < 201304)
+#  define BOOST_NO_CXX14_VARIABLE_TEMPLATES
+#endif
+
+// C++17
+#if !defined(__cpp_structured_bindings) || (__cpp_structured_bindings < 201606)
+#  define BOOST_NO_CXX17_STRUCTURED_BINDINGS
+#endif
+#if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606)
+#  define BOOST_NO_CXX17_INLINE_VARIABLES
+#endif
+#if !defined(__cpp_fold_expressions) || (__cpp_fold_expressions < 201603)
+#  define BOOST_NO_CXX17_FOLD_EXPRESSIONS
+#endif
+#if !defined(__cpp_if_constexpr) || (__cpp_if_constexpr < 201606)
+#  define BOOST_NO_CXX17_IF_CONSTEXPR
+#endif
+
+#if __BORLANDC__ >= 0x590
+#  define BOOST_HAS_TR1_HASH
+
+#  define BOOST_HAS_MACRO_USE_FACET
+#endif
+
+//
+// Post 0x561 we have long long and stdint.h:
+#if __BORLANDC__ >= 0x561
+#  ifndef __NO_LONG_LONG
+#     define BOOST_HAS_LONG_LONG
+#  else
+#     define BOOST_NO_LONG_LONG
+#  endif
+   // On non-Win32 platforms let the platform config figure this out:
+#  ifdef _WIN32
+#      define BOOST_HAS_STDINT_H
+#  endif
+#endif
+
+// Borland C++Builder 6 defaults to using STLPort.  If _USE_OLD_RW_STL is
+// defined, then we have 0x560 or greater with the Rogue Wave implementation
+// which presumably has the std::DBL_MAX bug.
+#if defined( BOOST_BCB_WITH_ROGUE_WAVE )
+// <climits> is partly broken, some macros define symbols that are really in
+// namespace std, so you end up having to use illegal constructs like
+// std::DBL_MAX, as a fix we'll just include float.h and have done with:
+#include <float.h>
+#endif
+//
+// __int64:
+//
+#if (__BORLANDC__ >= 0x530) && !defined(__STRICT_ANSI__)
+#  define BOOST_HAS_MS_INT64
+#endif
+//
+// check for exception handling support:
+//
+#if !defined(_CPPUNWIND) && !defined(BOOST_CPPUNWIND) && !defined(__EXCEPTIONS) && !defined(BOOST_NO_EXCEPTIONS)
+#  define BOOST_NO_EXCEPTIONS
+#endif
+//
+// all versions have a <dirent.h>:
+//
+#ifndef __STRICT_ANSI__
+#  define BOOST_HAS_DIRENT_H
+#endif
+//
+// all versions support __declspec:
+//
+#if defined(__STRICT_ANSI__)
+// config/platform/win32.hpp will define BOOST_SYMBOL_EXPORT, etc., unless already defined
+#  define BOOST_SYMBOL_EXPORT
+#endif
+//
+// ABI fixing headers:
+//
+#if __BORLANDC__ != 0x600 // not implemented for version 6 compiler yet
+#ifndef BOOST_ABI_PREFIX
+#  define BOOST_ABI_PREFIX "boost/config/abi/borland_prefix.hpp"
+#endif
+#ifndef BOOST_ABI_SUFFIX
+#  define BOOST_ABI_SUFFIX "boost/config/abi/borland_suffix.hpp"
+#endif
+#endif
+//
+// Disable Win32 support in ANSI mode:
+//
+#if __BORLANDC__ < 0x600
+#  pragma defineonoption BOOST_DISABLE_WIN32 -A
+#elif defined(__STRICT_ANSI__)
+#  define BOOST_DISABLE_WIN32
+#endif
+//
+// MSVC compatibility mode does some nasty things:
+// TODO: look up if this doesn't apply to the whole 12xx range
+//
+#if defined(_MSC_VER) && (_MSC_VER <= 1200)
+#  define BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP
+#  define BOOST_NO_VOID_RETURNS
+#endif
+
+// Borland did not implement value-initialization completely, as I reported
+// in 2007, Borland Report 51854, "Value-initialization: POD struct should be
+// zero-initialized", http://qc.embarcadero.com/wc/qcmain.aspx?d=51854
+// See also: http://www.boost.org/libs/utility/value_init.htm#compiler_issues
+// (Niels Dekker, LKEB, April 2010)
+#define BOOST_NO_COMPLETE_VALUE_INITIALIZATION
+
+#define BOOST_COMPILER "Borland C++ version " BOOST_STRINGIZE(__BORLANDC__)
--- a/oss/boost/boost_1_73_0/boost/config/compiler/clang.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/clang.hpp
@@ -0,0 +1,352 @@
+// (C) Copyright Douglas Gregor 2010
+//
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+// Clang compiler setup.
+
+#define BOOST_HAS_PRAGMA_ONCE
+
+// Detecting `-fms-extension` compiler flag assuming that _MSC_VER defined when that flag is used.
+#if defined (_MSC_VER) && (__clang_major__ > 3 || (__clang_major__ == 3 && __clang_minor__ >= 4))
+#   define BOOST_HAS_PRAGMA_DETECT_MISMATCH
+#endif
+
+// When compiling with clang before __has_extension was defined,
+// even if one writes 'defined(__has_extension) && __has_extension(xxx)',
+// clang reports a compiler error. So the only workaround found is:
+
+#ifndef __has_extension
+#define __has_extension __has_feature
+#endif
+
+#ifndef __has_attribute
+#define __has_attribute(x) 0
+#endif
+
+#ifndef __has_cpp_attribute
+#define __has_cpp_attribute(x) 0
+#endif
+
+#if !__has_feature(cxx_exceptions) && !defined(BOOST_NO_EXCEPTIONS)
+#  define BOOST_NO_EXCEPTIONS
+#endif
+
+#if !__has_feature(cxx_rtti) && !defined(BOOST_NO_RTTI)
+#  define BOOST_NO_RTTI
+#endif
+
+#if !__has_feature(cxx_rtti) && !defined(BOOST_NO_TYPEID)
+#  define BOOST_NO_TYPEID
+#endif
+
+#if !__has_feature(cxx_thread_local)
+#  define BOOST_NO_CXX11_THREAD_LOCAL
+#endif
+
+#ifdef __is_identifier
+#if !__is_identifier(__int64) && !defined(__GNUC__)
+#  define BOOST_HAS_MS_INT64
+#endif
+#endif
+
+#if __has_include(<stdint.h>)
+#  define BOOST_HAS_STDINT_H
+#endif
+
+#if (defined(linux) || defined(__linux) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__)) && !defined(_CRAYC)
+#if (__clang_major__ >= 4) && defined(__has_include)
+#if __has_include(<quadmath.h>)
+#  define BOOST_HAS_FLOAT128
+#endif
+#endif
+#endif
+
+
+#define BOOST_HAS_NRVO
+
+// Branch prediction hints
+#if !defined (__c2__) && defined(__has_builtin)
+#if __has_builtin(__builtin_expect)
+#define BOOST_LIKELY(x) __builtin_expect(x, 1)
+#define BOOST_UNLIKELY(x) __builtin_expect(x, 0)
+#endif
+#endif
+
+// Clang supports "long long" in all compilation modes.
+#define BOOST_HAS_LONG_LONG
+
+//
+// We disable this if the compiler is really nvcc with C++03 as it
+// doesn't actually support __int128 as of CUDA_VERSION=7500
+// even though it defines __SIZEOF_INT128__.
+// See https://svn.boost.org/trac/boost/ticket/10418
+//     https://svn.boost.org/trac/boost/ticket/11852
+// Only re-enable this for nvcc if you're absolutely sure
+// of the circumstances under which it's supported.
+// Similarly __SIZEOF_INT128__ is defined when targetting msvc
+// compatibility even though the required support functions are absent.
+//
+#if defined(__CUDACC__)
+#  if defined(BOOST_GCC_CXX11)
+#    define BOOST_NVCC_CXX11
+#  else
+#    define BOOST_NVCC_CXX03
+#  endif
+#endif
+
+#if defined(__SIZEOF_INT128__) && !defined(BOOST_NVCC_CXX03) && !defined(_MSC_VER)
+#  define BOOST_HAS_INT128
+#endif
+
+
+//
+// Dynamic shared object (DSO) and dynamic-link library (DLL) support
+//
+#if defined(_WIN32) || defined(__WIN32__) || defined(WIN32) || defined(__CYGWIN__)
+#  define BOOST_HAS_DECLSPEC
+#  define BOOST_SYMBOL_EXPORT __attribute__((__dllexport__))
+#  define BOOST_SYMBOL_IMPORT __attribute__((__dllimport__))
+#else
+#  define BOOST_SYMBOL_EXPORT __attribute__((__visibility__("default")))
+#  define BOOST_SYMBOL_VISIBLE __attribute__((__visibility__("default")))
+#  define BOOST_SYMBOL_IMPORT
+#endif
+
+//
+// The BOOST_FALLTHROUGH macro can be used to annotate implicit fall-through
+// between switch labels.
+//
+#if __cplusplus >= 201103L && defined(__has_warning)
+#  if __has_feature(cxx_attributes) && __has_warning("-Wimplicit-fallthrough")
+#    define BOOST_FALLTHROUGH [[clang::fallthrough]]
+#  endif
+#endif
+
+#if !__has_feature(cxx_auto_type)
+#  define BOOST_NO_CXX11_AUTO_DECLARATIONS
+#  define BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
+#endif
+
+//
+// Currently clang on Windows using VC++ RTL does not support C++11's char16_t or char32_t
+//
+#if (defined(_MSC_VER) && (_MSC_VER < 1900)) || !(defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L)
+#  define BOOST_NO_CXX11_CHAR16_T
+#  define BOOST_NO_CXX11_CHAR32_T
+#endif
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1800) && !defined(__GNUC__)
+#define BOOST_HAS_EXPM1
+#define BOOST_HAS_LOG1P
+#endif
+
+#if !__has_feature(cxx_constexpr)
+#  define BOOST_NO_CXX11_CONSTEXPR
+#endif
+
+#if !__has_feature(cxx_decltype)
+#  define BOOST_NO_CXX11_DECLTYPE
+#endif
+
+#if !__has_feature(cxx_decltype_incomplete_return_types)
+#  define BOOST_NO_CXX11_DECLTYPE_N3276
+#endif
+
+#if !__has_feature(cxx_defaulted_functions)
+#  define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#endif
+
+#if !__has_feature(cxx_deleted_functions)
+#  define BOOST_NO_CXX11_DELETED_FUNCTIONS
+#endif
+
+#if !__has_feature(cxx_explicit_conversions)
+#  define BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+#endif
+
+#if !__has_feature(cxx_default_function_template_args)
+#  define BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#endif
+
+#if !__has_feature(cxx_generalized_initializers)
+#  define BOOST_NO_CXX11_HDR_INITIALIZER_LIST
+#endif
+
+#if !__has_feature(cxx_lambdas)
+#  define BOOST_NO_CXX11_LAMBDAS
+#endif
+
+#if !__has_feature(cxx_local_type_template_args)
+#  define BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#endif
+
+#if !__has_feature(cxx_noexcept)
+#  define BOOST_NO_CXX11_NOEXCEPT
+#endif
+
+#if !__has_feature(cxx_nullptr)
+#  define BOOST_NO_CXX11_NULLPTR
+#endif
+
+#if !__has_feature(cxx_range_for)
+#  define BOOST_NO_CXX11_RANGE_BASED_FOR
+#endif
+
+#if !__has_feature(cxx_raw_string_literals)
+#  define BOOST_NO_CXX11_RAW_LITERALS
+#endif
+
+#if !__has_feature(cxx_reference_qualified_functions)
+#  define BOOST_NO_CXX11_REF_QUALIFIERS
+#endif
+
+#if !__has_feature(cxx_generalized_initializers)
+#  define BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#endif
+
+#if !__has_feature(cxx_rvalue_references)
+#  define BOOST_NO_CXX11_RVALUE_REFERENCES
+#endif
+
+#if !__has_feature(cxx_strong_enums)
+#  define BOOST_NO_CXX11_SCOPED_ENUMS
+#endif
+
+#if !__has_feature(cxx_static_assert)
+#  define BOOST_NO_CXX11_STATIC_ASSERT
+#endif
+
+#if !__has_feature(cxx_alias_templates)
+#  define BOOST_NO_CXX11_TEMPLATE_ALIASES
+#endif
+
+#if !__has_feature(cxx_unicode_literals)
+#  define BOOST_NO_CXX11_UNICODE_LITERALS
+#endif
+
+#if !__has_feature(cxx_variadic_templates)
+#  define BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#endif
+
+#if !__has_feature(cxx_user_literals)
+#  define BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#endif
+
+#if !__has_feature(cxx_alignas)
+#  define BOOST_NO_CXX11_ALIGNAS
+#endif
+
+#if !__has_feature(cxx_trailing_return)
+#  define BOOST_NO_CXX11_TRAILING_RESULT_TYPES
+#endif
+
+#if !__has_feature(cxx_inline_namespaces)
+#  define BOOST_NO_CXX11_INLINE_NAMESPACES
+#endif
+
+#if !__has_feature(cxx_override_control)
+#  define BOOST_NO_CXX11_FINAL
+#endif
+
+#if !__has_feature(cxx_unrestricted_unions)
+#  define BOOST_NO_CXX11_UNRESTRICTED_UNION
+#endif
+
+#if !(__has_feature(__cxx_binary_literals__) || __has_extension(__cxx_binary_literals__))
+#  define BOOST_NO_CXX14_BINARY_LITERALS
+#endif
+
+#if !__has_feature(__cxx_decltype_auto__)
+#  define BOOST_NO_CXX14_DECLTYPE_AUTO
+#endif
+
+#if !__has_feature(__cxx_aggregate_nsdmi__)
+#  define BOOST_NO_CXX14_AGGREGATE_NSDMI
+#endif
+
+#if !__has_feature(__cxx_init_captures__)
+#  define BOOST_NO_CXX14_INITIALIZED_LAMBDA_CAPTURES
+#endif
+
+#if !__has_feature(__cxx_generic_lambdas__)
+#  define BOOST_NO_CXX14_GENERIC_LAMBDAS
+#endif
+
+// clang < 3.5 has a defect with dependent type, like following.
+//
+//  template <class T>
+//  constexpr typename enable_if<pred<T> >::type foo(T &)
+//  { } // error: no return statement in constexpr function
+//
+// This issue also affects C++11 mode, but C++11 constexpr requires return stmt.
+// Therefore we don't care such case.
+//
+// Note that we can't check Clang version directly as the numbering system changes depending who's
+// creating the Clang release (see https://github.com/boostorg/config/pull/39#issuecomment-59927873)
+// so instead verify that we have a feature that was introduced at the same time as working C++14
+// constexpr (generic lambda's in this case):
+//
+#if !__has_feature(__cxx_generic_lambdas__) || !__has_feature(__cxx_relaxed_constexpr__)
+#  define BOOST_NO_CXX14_CONSTEXPR
+#endif
+
+#if !__has_feature(__cxx_return_type_deduction__)
+#  define BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION
+#endif
+
+#if !__has_feature(__cxx_variable_templates__)
+#  define BOOST_NO_CXX14_VARIABLE_TEMPLATES
+#endif
+
+#if !defined(__cpp_structured_bindings) || (__cpp_structured_bindings < 201606)
+#  define BOOST_NO_CXX17_STRUCTURED_BINDINGS
+#endif
+
+#if !defined(__cpp_if_constexpr) || (__cpp_if_constexpr < 201606)
+#  define BOOST_NO_CXX17_IF_CONSTEXPR
+#endif
+
+// Clang 3.9+ in c++1z
+#if !__has_cpp_attribute(fallthrough) || __cplusplus < 201406L
+#  define BOOST_NO_CXX17_INLINE_VARIABLES
+#  define BOOST_NO_CXX17_FOLD_EXPRESSIONS
+#endif
+
+#if __cplusplus < 201103L
+#define BOOST_NO_CXX11_SFINAE_EXPR
+#endif
+
+#if __cplusplus < 201400
+// All versions with __cplusplus above this value seem to support this:
+#  define BOOST_NO_CXX14_DIGIT_SEPARATORS
+#endif
+//
+// __builtin_unreachable:
+#if defined(__has_builtin) && __has_builtin(__builtin_unreachable)
+#define BOOST_UNREACHABLE_RETURN(x) __builtin_unreachable();
+#endif
+
+#if (__clang_major__ == 3) && (__clang_minor__ == 0)
+// Apparently a clang bug:
+#  define BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS
+#endif
+
+// Clang has supported the 'unused' attribute since the first release.
+#define BOOST_ATTRIBUTE_UNUSED __attribute__((__unused__))
+
+// Type aliasing hint.
+#if __has_attribute(__may_alias__)
+#  define BOOST_MAY_ALIAS __attribute__((__may_alias__))
+#endif
+
+#ifndef BOOST_COMPILER
+#  define BOOST_COMPILER "Clang version " __clang_version__
+#endif
+
+// Macro used to identify the Clang compiler.
+#define BOOST_CLANG 1
+
--- a/oss/boost/boost_1_73_0/boost/config/compiler/codegear.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/codegear.hpp
@@ -0,0 +1,240 @@
+//  (C) Copyright John Maddock 2001 - 2003.
+//  (C) Copyright David Abrahams 2002 - 2003.
+//  (C) Copyright Aleksey Gurtovoy 2002.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+//  CodeGear C++ compiler setup:
+
+#if !defined( BOOST_WITH_CODEGEAR_WARNINGS )
+// these warnings occur frequently in optimized template code
+# pragma warn -8004 // var assigned value, but never used
+# pragma warn -8008 // condition always true/false
+# pragma warn -8066 // dead code can never execute
+# pragma warn -8104 // static members with ctors not threadsafe
+# pragma warn -8105 // reference member in class without ctors
+#endif
+//
+// versions check:
+// last known and checked version is 0x621
+#if (__CODEGEARC__ > 0x621)
+#  if defined(BOOST_ASSERT_CONFIG)
+#     error "boost: Unknown compiler version - please run the configure tests and report the results"
+#  else
+#     pragma message( "boost: Unknown compiler version - please run the configure tests and report the results")
+#  endif
+#endif
+
+// CodeGear C++ Builder 2009
+#if (__CODEGEARC__ <= 0x613)
+#  define BOOST_NO_INTEGRAL_INT64_T
+#  define BOOST_NO_DEPENDENT_NESTED_DERIVATIONS
+#  define BOOST_NO_PRIVATE_IN_AGGREGATE
+#  define BOOST_NO_USING_DECLARATION_OVERLOADS_FROM_TYPENAME_BASE
+   // we shouldn't really need this - but too many things choke
+   // without it, this needs more investigation:
+#  define BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
+#  define BOOST_SP_NO_SP_CONVERTIBLE
+#endif
+
+// CodeGear C++ Builder 2010
+#if (__CODEGEARC__ <= 0x621)
+#  define BOOST_NO_TYPENAME_WITH_CTOR    // Cannot use typename keyword when making temporaries of a dependant type
+#  define BOOST_FUNCTION_SCOPE_USING_DECLARATION_BREAKS_ADL
+#  define BOOST_NO_MEMBER_TEMPLATE_FRIENDS
+#  define BOOST_NO_NESTED_FRIENDSHIP     // TC1 gives nested classes access rights as any other member
+#  define BOOST_NO_USING_TEMPLATE
+#  define BOOST_NO_TWO_PHASE_NAME_LOOKUP
+// Temporary hack, until specific MPL preprocessed headers are generated
+#  define BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
+
+// CodeGear has not yet completely implemented value-initialization, for
+// example for array types, as I reported in 2010: Embarcadero Report 83751,
+// "Value-initialization: arrays should have each element value-initialized",
+// http://qc.embarcadero.com/wc/qcmain.aspx?d=83751
+// Last checked version: Embarcadero C++ 6.21
+// See also: http://www.boost.org/libs/utility/value_init.htm#compiler_issues
+// (Niels Dekker, LKEB, April 2010)
+#  define BOOST_NO_COMPLETE_VALUE_INITIALIZATION
+
+#  if defined(NDEBUG) && defined(__cplusplus)
+      // fix broken <cstring> so that Boost.test works:
+#     include <cstring>
+#     undef strcmp
+#  endif
+   // fix broken errno declaration:
+#  include <errno.h>
+#  ifndef errno
+#     define errno errno
+#  endif
+
+#endif
+
+// Reportedly, #pragma once is supported since C++ Builder 2010
+#if (__CODEGEARC__ >= 0x620)
+#  define BOOST_HAS_PRAGMA_ONCE
+#endif
+
+//
+// C++0x macros:
+//
+#if (__CODEGEARC__ <= 0x620)
+#define BOOST_NO_CXX11_STATIC_ASSERT
+#else
+#define BOOST_HAS_STATIC_ASSERT
+#endif
+#define BOOST_HAS_CHAR16_T
+#define BOOST_HAS_CHAR32_T
+#define BOOST_HAS_LONG_LONG
+// #define BOOST_HAS_ALIGNOF
+#define BOOST_HAS_DECLTYPE
+#define BOOST_HAS_EXPLICIT_CONVERSION_OPS
+// #define BOOST_HAS_RVALUE_REFS
+#define BOOST_HAS_SCOPED_ENUM
+// #define BOOST_HAS_STATIC_ASSERT
+#define BOOST_HAS_STD_TYPE_TRAITS
+
+#define BOOST_NO_CXX11_AUTO_DECLARATIONS
+#define BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
+#define BOOST_NO_CXX11_CONSTEXPR
+#define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#define BOOST_NO_CXX11_DELETED_FUNCTIONS
+#define BOOST_NO_CXX11_EXTERN_TEMPLATE
+#define BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#define BOOST_NO_CXX11_LAMBDAS
+#define BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#define BOOST_NO_CXX11_NOEXCEPT
+#define BOOST_NO_CXX11_NULLPTR
+#define BOOST_NO_CXX11_RANGE_BASED_FOR
+#define BOOST_NO_CXX11_RAW_LITERALS
+#define BOOST_NO_CXX11_RVALUE_REFERENCES
+#define BOOST_NO_SFINAE_EXPR
+#define BOOST_NO_CXX11_SFINAE_EXPR
+#define BOOST_NO_CXX11_TEMPLATE_ALIASES
+#define BOOST_NO_CXX11_UNICODE_LITERALS
+#define BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#define BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#define BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#define BOOST_NO_CXX11_ALIGNAS
+#define BOOST_NO_CXX11_TRAILING_RESULT_TYPES
+#define BOOST_NO_CXX11_INLINE_NAMESPACES
+#define BOOST_NO_CXX11_REF_QUALIFIERS
+#define BOOST_NO_CXX11_FINAL
+#define BOOST_NO_CXX11_THREAD_LOCAL
+#define BOOST_NO_CXX11_UNRESTRICTED_UNION
+
+// C++ 14:
+#if !defined(__cpp_aggregate_nsdmi) || (__cpp_aggregate_nsdmi < 201304)
+#  define BOOST_NO_CXX14_AGGREGATE_NSDMI
+#endif
+#if !defined(__cpp_binary_literals) || (__cpp_binary_literals < 201304)
+#  define BOOST_NO_CXX14_BINARY_LITERALS
+#endif
+#if !defined(__cpp_constexpr) || (__cpp_constexpr < 201304)
+#  define BOOST_NO_CXX14_CONSTEXPR
+#endif
+#if !defined(__cpp_decltype_auto) || (__cpp_decltype_auto < 201304)
+#  define BOOST_NO_CXX14_DECLTYPE_AUTO
+#endif
+#if (__cplusplus < 201304) // There's no SD6 check for this....
+#  define BOOST_NO_CXX14_DIGIT_SEPARATORS
+#endif
+#if !defined(__cpp_generic_lambdas) || (__cpp_generic_lambdas < 201304)
+#  define BOOST_NO_CXX14_GENERIC_LAMBDAS
+#endif
+#if !defined(__cpp_init_captures) || (__cpp_init_captures < 201304)
+#  define BOOST_NO_CXX14_INITIALIZED_LAMBDA_CAPTURES
+#endif
+#if !defined(__cpp_return_type_deduction) || (__cpp_return_type_deduction < 201304)
+#  define BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION
+#endif
+#if !defined(__cpp_variable_templates) || (__cpp_variable_templates < 201304)
+#  define BOOST_NO_CXX14_VARIABLE_TEMPLATES
+#endif
+
+// C++17
+#if !defined(__cpp_structured_bindings) || (__cpp_structured_bindings < 201606)
+#  define BOOST_NO_CXX17_STRUCTURED_BINDINGS
+#endif
+
+#if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606)
+#  define BOOST_NO_CXX17_INLINE_VARIABLES
+#endif
+
+#if !defined(__cpp_fold_expressions) || (__cpp_fold_expressions < 201603)
+#  define BOOST_NO_CXX17_FOLD_EXPRESSIONS
+#endif
+
+#if !defined(__cpp_if_constexpr) || (__cpp_if_constexpr < 201606)
+#  define BOOST_NO_CXX17_IF_CONSTEXPR
+#endif
+
+//
+// TR1 macros:
+//
+#define BOOST_HAS_TR1_HASH
+#define BOOST_HAS_TR1_TYPE_TRAITS
+#define BOOST_HAS_TR1_UNORDERED_MAP
+#define BOOST_HAS_TR1_UNORDERED_SET
+
+#define BOOST_HAS_MACRO_USE_FACET
+
+#define BOOST_NO_CXX11_HDR_INITIALIZER_LIST
+
+// On non-Win32 platforms let the platform config figure this out:
+#ifdef _WIN32
+#  define BOOST_HAS_STDINT_H
+#endif
+
+//
+// __int64:
+//
+#if !defined(__STRICT_ANSI__)
+#  define BOOST_HAS_MS_INT64
+#endif
+//
+// check for exception handling support:
+//
+#if !defined(_CPPUNWIND) && !defined(BOOST_CPPUNWIND) && !defined(__EXCEPTIONS) && !defined(BOOST_NO_EXCEPTIONS)
+#  define BOOST_NO_EXCEPTIONS
+#endif
+//
+// all versions have a <dirent.h>:
+//
+#if !defined(__STRICT_ANSI__)
+#  define BOOST_HAS_DIRENT_H
+#endif
+//
+// all versions support __declspec:
+//
+#if defined(__STRICT_ANSI__)
+// config/platform/win32.hpp will define BOOST_SYMBOL_EXPORT, etc., unless already defined
+#  define BOOST_SYMBOL_EXPORT
+#endif
+//
+// ABI fixing headers:
+//
+#ifndef BOOST_ABI_PREFIX
+#  define BOOST_ABI_PREFIX "boost/config/abi/borland_prefix.hpp"
+#endif
+#ifndef BOOST_ABI_SUFFIX
+#  define BOOST_ABI_SUFFIX "boost/config/abi/borland_suffix.hpp"
+#endif
+//
+// Disable Win32 support in ANSI mode:
+//
+#  pragma defineonoption BOOST_DISABLE_WIN32 -A
+//
+// MSVC compatibility mode does some nasty things:
+// TODO: look up if this doesn't apply to the whole 12xx range
+//
+#if defined(_MSC_VER) && (_MSC_VER <= 1200)
+#  define BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP
+#  define BOOST_NO_VOID_RETURNS
+#endif
+
+#define BOOST_COMPILER "CodeGear C++ version " BOOST_STRINGIZE(__CODEGEARC__)
+
--- a/oss/boost/boost_1_73_0/boost/config/compiler/comeau.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/comeau.hpp
@@ -0,0 +1,59 @@
+//  (C) Copyright John Maddock 2001. 
+//  (C) Copyright Douglas Gregor 2001. 
+//  (C) Copyright Peter Dimov 2001. 
+//  (C) Copyright Aleksey Gurtovoy 2003. 
+//  (C) Copyright Beman Dawes 2003. 
+//  (C) Copyright Jens Maurer 2003. 
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+//  Comeau C++ compiler setup:
+
+#include <boost/config/compiler/common_edg.hpp>
+
+#if (__COMO_VERSION__ <= 4245)
+
+#  if defined(_MSC_VER) && _MSC_VER <= 1300
+#     if _MSC_VER > 100
+         // only set this in non-strict mode:
+#        define BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP
+#     endif
+#  endif
+
+// Void returns don't work when emulating VC 6 (Peter Dimov)
+// TODO: look up if this doesn't apply to the whole 12xx range
+#  if defined(_MSC_VER) && (_MSC_VER < 1300)
+#     define BOOST_NO_VOID_RETURNS
+#  endif
+
+#endif  // version 4245
+
+//
+// enable __int64 support in VC emulation mode
+//
+#  if defined(_MSC_VER) && (_MSC_VER >= 1200)
+#     define BOOST_HAS_MS_INT64
+#  endif
+
+#define BOOST_COMPILER "Comeau compiler version " BOOST_STRINGIZE(__COMO_VERSION__)
+
+//
+// versions check:
+// we don't know Comeau prior to version 4245:
+#if __COMO_VERSION__ < 4245
+#  error "Compiler not configured - please reconfigure"
+#endif
+//
+// last known and checked version is 4245:
+#if (__COMO_VERSION__ > 4245)
+#  if defined(BOOST_ASSERT_CONFIG)
+#     error "boost: Unknown compiler version - please run the configure tests and report the results"
+#  endif
+#endif
+
+
+
+
--- a/oss/boost/boost_1_73_0/boost/config/compiler/common_edg.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/common_edg.hpp
@@ -0,0 +1,161 @@
+//  (C) Copyright John Maddock 2001 - 2002.
+//  (C) Copyright Jens Maurer 2001.
+//  (C) Copyright David Abrahams 2002.
+//  (C) Copyright Aleksey Gurtovoy 2002.
+//  (C) Copyright Markus Schoepflin 2005.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+//
+// Options common to all edg based compilers.
+//
+// This is included from within the individual compiler mini-configs.
+
+#ifndef  __EDG_VERSION__
+#  error This file requires that __EDG_VERSION__ be defined.
+#endif
+
+#if (__EDG_VERSION__ <= 238)
+#   define BOOST_NO_INTEGRAL_INT64_T
+#   define BOOST_NO_SFINAE
+#endif
+
+#if (__EDG_VERSION__ <= 240)
+#   define BOOST_NO_VOID_RETURNS
+#endif
+
+#if (__EDG_VERSION__ <= 241) && !defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP)
+#   define BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP
+#endif
+
+#if (__EDG_VERSION__ <= 244) && !defined(BOOST_NO_TEMPLATE_TEMPLATES)
+#   define BOOST_NO_TEMPLATE_TEMPLATES
+#endif
+
+#if (__EDG_VERSION__ < 300) && !defined(BOOST_NO_IS_ABSTRACT)
+#   define BOOST_NO_IS_ABSTRACT
+#endif
+
+#if (__EDG_VERSION__ <= 303) && !defined(BOOST_FUNCTION_SCOPE_USING_DECLARATION_BREAKS_ADL)
+#   define BOOST_FUNCTION_SCOPE_USING_DECLARATION_BREAKS_ADL
+#endif
+
+// See also kai.hpp which checks a Kai-specific symbol for EH
+# if !defined(__KCC) && !defined(__EXCEPTIONS) && !defined(BOOST_NO_EXCEPTIONS)
+#     define BOOST_NO_EXCEPTIONS
+# endif
+
+# if !defined(__NO_LONG_LONG)
+#     define BOOST_HAS_LONG_LONG
+# else
+#     define BOOST_NO_LONG_LONG
+# endif
+
+// Not sure what version was the first to support #pragma once, but
+// different EDG-based compilers (e.g. Intel) supported it for ages.
+// Add a proper version check if it causes problems.
+#define BOOST_HAS_PRAGMA_ONCE
+
+//
+// C++0x features
+//
+//   See above for BOOST_NO_LONG_LONG
+//
+#if (__EDG_VERSION__ < 310)
+#  define BOOST_NO_CXX11_EXTERN_TEMPLATE
+#endif
+#if (__EDG_VERSION__ <= 310)
+// No support for initializer lists
+#  define BOOST_NO_CXX11_HDR_INITIALIZER_LIST
+#endif
+#if (__EDG_VERSION__ < 400)
+#  define BOOST_NO_CXX11_VARIADIC_MACROS
+#endif
+
+#define BOOST_NO_CXX11_AUTO_DECLARATIONS
+#define BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
+#define BOOST_NO_CXX11_CHAR16_T
+#define BOOST_NO_CXX11_CHAR32_T
+#define BOOST_NO_CXX11_CONSTEXPR
+#define BOOST_NO_CXX11_DECLTYPE
+#define BOOST_NO_CXX11_DECLTYPE_N3276
+#define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#define BOOST_NO_CXX11_DELETED_FUNCTIONS
+#define BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+#define BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#define BOOST_NO_CXX11_LAMBDAS
+#define BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#define BOOST_NO_CXX11_NOEXCEPT
+#define BOOST_NO_CXX11_NULLPTR
+#define BOOST_NO_CXX11_RANGE_BASED_FOR
+#define BOOST_NO_CXX11_RAW_LITERALS
+#define BOOST_NO_CXX11_RVALUE_REFERENCES
+#define BOOST_NO_CXX11_SCOPED_ENUMS
+#define BOOST_NO_SFINAE_EXPR
+#define BOOST_NO_CXX11_SFINAE_EXPR
+#define BOOST_NO_CXX11_STATIC_ASSERT
+#define BOOST_NO_CXX11_TEMPLATE_ALIASES
+#define BOOST_NO_CXX11_UNICODE_LITERALS
+#define BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#define BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#define BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#define BOOST_NO_CXX11_ALIGNAS
+#define BOOST_NO_CXX11_TRAILING_RESULT_TYPES
+#define BOOST_NO_CXX11_INLINE_NAMESPACES
+#define BOOST_NO_CXX11_REF_QUALIFIERS
+#define BOOST_NO_CXX11_FINAL
+#define BOOST_NO_CXX11_THREAD_LOCAL
+#define BOOST_NO_CXX11_UNRESTRICTED_UNION
+
+// C++ 14:
+#if !defined(__cpp_aggregate_nsdmi) || (__cpp_aggregate_nsdmi < 201304)
+#  define BOOST_NO_CXX14_AGGREGATE_NSDMI
+#endif
+#if !defined(__cpp_binary_literals) || (__cpp_binary_literals < 201304)
+#  define BOOST_NO_CXX14_BINARY_LITERALS
+#endif
+#if !defined(__cpp_constexpr) || (__cpp_constexpr < 201304)
+#  define BOOST_NO_CXX14_CONSTEXPR
+#endif
+#if !defined(__cpp_decltype_auto) || (__cpp_decltype_auto < 201304)
+#  define BOOST_NO_CXX14_DECLTYPE_AUTO
+#endif
+#if (__cplusplus < 201304) // There's no SD6 check for this....
+#  define BOOST_NO_CXX14_DIGIT_SEPARATORS
+#endif
+#if !defined(__cpp_generic_lambdas) || (__cpp_generic_lambdas < 201304)
+#  define BOOST_NO_CXX14_GENERIC_LAMBDAS
+#endif
+#if !defined(__cpp_init_captures) || (__cpp_init_captures < 201304)
+#  define BOOST_NO_CXX14_INITIALIZED_LAMBDA_CAPTURES
+#endif
+#if !defined(__cpp_return_type_deduction) || (__cpp_return_type_deduction < 201304)
+#  define BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION
+#endif
+#if !defined(__cpp_variable_templates) || (__cpp_variable_templates < 201304)
+#  define BOOST_NO_CXX14_VARIABLE_TEMPLATES
+#endif
+
+// C++17
+#if !defined(__cpp_structured_bindings) || (__cpp_structured_bindings < 201606)
+#  define BOOST_NO_CXX17_STRUCTURED_BINDINGS
+#endif
+#if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606)
+#  define BOOST_NO_CXX17_INLINE_VARIABLES
+#endif
+#if !defined(__cpp_fold_expressions) || (__cpp_fold_expressions < 201603)
+#  define BOOST_NO_CXX17_FOLD_EXPRESSIONS
+#endif
+
+#if !defined(__cpp_if_constexpr) || (__cpp_if_constexpr < 201606)
+#  define BOOST_NO_CXX17_IF_CONSTEXPR
+#endif
+
+#ifdef c_plusplus
+// EDG has "long long" in non-strict mode
+// However, some libraries have insufficient "long long" support
+// #define BOOST_HAS_LONG_LONG
+#endif
--- a/oss/boost/boost_1_73_0/boost/config/compiler/compaq_cxx.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/compaq_cxx.hpp
@@ -0,0 +1,19 @@
+//  (C) Copyright John Maddock 2001 - 2003. 
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+//  Tru64 C++ compiler setup (now HP):
+
+#define BOOST_COMPILER "HP Tru64 C++ " BOOST_STRINGIZE(__DECCXX_VER)
+
+#include <boost/config/compiler/common_edg.hpp>
+
+//
+// versions check:
+// Nothing to do here?
+
+
+
--- a/oss/boost/boost_1_73_0/boost/config/compiler/cray.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/cray.hpp
@@ -0,0 +1,442 @@
+//  Copyright 2011 John Maddock
+//  Copyright 2013, 2017-2018 Cray, Inc.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+// Cray C++ compiler setup.
+//
+// There are a few parameters that affect the macros defined in this file:
+//
+// - What version of CCE (Cray Compiling Environment) are we running? This
+//   comes from the '_RELEASE_MAJOR', '_RELEASE_MINOR', and
+//   '_RELEASE_PATCHLEVEL' macros.
+// - What C++ standards conformance level are we using (e.g. '-h
+//   std=c++14')? This comes from the '__cplusplus' macro.
+// - Are we using GCC extensions ('-h gnu' or '-h nognu')? If we have '-h
+//   gnu' then CCE emulates GCC, and the macros '__GNUC__',
+//   '__GNUC_MINOR__', and '__GNUC_PATCHLEVEL__' are defined.
+//
+// This file is organized as follows:
+//
+// - Verify that the combination of parameters listed above is supported.
+//   If we have an unsupported combination, we abort with '#error'.
+// - Establish baseline values for all Boost macros.
+// - Apply changes to the baseline macros based on compiler version. These
+//   changes are cummulative so each version section only describes the
+//   changes since the previous version.
+//   - Within each version section, we may also apply changes based on
+//     other parameters (i.e. C++ standards conformance level and GCC
+//     extensions).
+//
+// To test changes to this file:
+//
+// ```
+// module load cce/8.6.5 # Pick the version you want to test.
+// cd boost/libs/config/test/all
+// b2 -j 8 toolset=cray cxxstd=03 cxxstd=11 cxxstd=14 cxxstd-dialect=gnu linkflags=-lrt
+// ```
+// Note: Using 'cxxstd-dialect=iso' is not supported at this time (the
+// tests run, but many tests fail).
+//
+// Note: 'linkflags=-lrt' is needed in Cray Linux Environment. Otherwise
+// you get an 'undefined reference to clock_gettime' error.
+//
+// Note: If a test '*_fail.cpp' file compiles, but fails to run, then it is
+// reported as a defect. However, this is not actually a defect. This is an
+// area where the test system is somewhat broken. Tests that are failing
+// because of this problem are noted in the comments.
+//
+// Pay attention to the macro definitions for the macros you wish to
+// modify. For example, only macros categorized as compiler macros should
+// appear in this file; platform macros should not appear in this file.
+// Also, some macros have to be defined to specific values; it is not
+// always enough to define or undefine a macro.
+//
+// Macro definitions are available in the source code at:
+//
+// `boost/libs/config/doc/html/boost_config/boost_macro_reference.html`
+//
+// Macro definitions are also available online at:
+//
+// http://www.boost.org/doc/libs/master/libs/config/doc/html/boost_config/boost_macro_reference.html
+//
+// Typically, if you enable a feature, and the tests pass, then you have
+// nothing to worry about. However, it's sometimes hard to figure out if a
+// disabled feature needs to stay disabled. To get a list of disabled
+// features, run 'b2' in 'boost/libs/config/checks'. These are the macros
+// you should pay attention to (in addition to macros that cause test
+// failures).
+
+////
+//// Front matter
+////
+
+// In a developer build of the Cray compiler (i.e. a compiler built by a
+// Cray employee), the release patch level is reported as "x". This gives
+// versions that look like e.g. "8.6.x".
+//
+// To accomplish this, the the Cray compiler preprocessor inserts:
+//
+// #define _RELEASE_PATCHLEVEL x
+//
+// If we are using a developer build of the compiler, we want to use the
+// configuration macros for the most recent patch level of the release. To
+// accomplish this, we'll pretend that _RELEASE_PATCHLEVEL is 99.
+//
+// However, it's difficult to detect if _RELEASE_PATCHLEVEL is x. We must
+// consider that the x will be expanded if x is defined as a macro
+// elsewhere. For example, imagine if someone put "-D x=3" on the command
+// line, and _RELEASE_PATCHLEVEL is x. Then _RELEASE_PATCHLEVEL would
+// expand to 3, and we could not distinguish it from an actual
+// _RELEASE_PATCHLEVEL of 3. This problem only affects developer builds; in
+// production builds, _RELEASE_PATCHLEVEL is always an integer.
+//
+// IMPORTANT: In developer builds, if x is defined as a macro, you will get
+// an incorrect configuration. The behavior in this case is undefined.
+//
+// Even if x is not defined, we have to use some trickery to detect if
+// _RELEASE_PATCHLEVEL is x. First we define BOOST_CRAY_x to some arbitrary
+// magic value, 9867657. Then we use BOOST_CRAY_APPEND to append the
+// expanded value of _RELEASE_PATCHLEVEL to the string "BOOST_CRAY_".
+//
+// - If _RELEASE_PATCHLEVEL is undefined, we get "BOOST_CRAY_".
+// - If _RELEASE_PATCHLEVEL is 5, we get "BOOST_CRAY_5".
+// - If _RELEASE_PATCHLEVEL is x (and x is not defined) we get
+//   "BOOST_CRAY_x":
+//
+// Then we check if BOOST_CRAY_x is equal to the output of
+// BOOST_CRAY_APPEND. In other words, the output of BOOST_CRAY_APPEND is
+// treated as a macro name, and expanded again. If we can safely assume
+// that BOOST_CRAY_ is not a macro defined as our magic number, and
+// BOOST_CRAY_5 is not a macro defined as our magic number, then the only
+// way the equality test can pass is if _RELEASE_PATCHLEVEL expands to x.
+//
+// So, that is how we detect if we are using a developer build of the Cray
+// compiler.
+
+#define BOOST_CRAY_x 9867657 // Arbitrary number
+#define BOOST_CRAY_APPEND(MACRO) BOOST_CRAY_APPEND_INTERNAL(MACRO)
+#define BOOST_CRAY_APPEND_INTERNAL(MACRO) BOOST_CRAY_##MACRO
+
+#if BOOST_CRAY_x == BOOST_CRAY_APPEND(_RELEASE_PATCHLEVEL)
+
+    // This is a developer build.
+    //
+    // - _RELEASE_PATCHLEVEL is defined as x, and x is not defined as a macro.
+
+    // Pretend _RELEASE_PATCHLEVEL is 99, so we get the configuration for the
+    // most recent patch level in this release.
+
+    #define BOOST_CRAY_VERSION (_RELEASE_MAJOR * 10000 + _RELEASE_MINOR * 100 + 99)
+
+#else
+
+    // This is a production build.
+    //
+    // _RELEASE_PATCHLEVEL is not defined as x, or x is defined as a macro.
+
+    #define BOOST_CRAY_VERSION (_RELEASE_MAJOR * 10000 + _RELEASE_MINOR * 100 + _RELEASE_PATCHLEVEL)
+
+#endif // BOOST_CRAY_x == BOOST_CRAY_APPEND(_RELEASE_PATCHLEVEL)
+
+#undef BOOST_CRAY_APPEND_INTERNAL
+#undef BOOST_CRAY_APPEND
+#undef BOOST_CRAY_x
+
+
+#ifdef __GNUC__
+#   define BOOST_GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
+#endif
+
+#ifndef BOOST_COMPILER
+#   define BOOST_COMPILER "Cray C++ version " BOOST_STRINGIZE(_RELEASE_MAJOR) "." BOOST_STRINGIZE(_RELEASE_MINOR) "." BOOST_STRINGIZE(_RELEASE_PATCHLEVEL)
+#endif
+
+// Since the Cray compiler defines '__GNUC__', we have to emulate some
+// additional GCC macros in order to make everything work.
+//
+// FIXME: Perhaps Cray should fix the compiler to define these additional
+// macros for GCC emulation?
+
+#if __cplusplus >= 201103L && defined(__GNUC__) && !defined(__GXX_EXPERIMENTAL_CXX0X__)
+#   define __GXX_EXPERIMENTAL_CXX0X__ 1
+#endif
+
+////
+//// Parameter validation
+////
+
+// FIXME: Do we really need to support compilers before 8.5? Do they pass
+// the Boost.Config tests?
+
+#if BOOST_CRAY_VERSION < 80000
+#  error "Boost is not configured for Cray compilers prior to version 8, please try the configure script."
+#endif
+
+// We only support recent EDG based compilers.
+
+#ifndef __EDG__
+#  error "Unsupported Cray compiler, please try running the configure script."
+#endif
+
+////
+//// Baseline values
+////
+
+#include <boost/config/compiler/common_edg.hpp>
+
+#define BOOST_HAS_NRVO
+#define BOOST_NO_COMPLETE_VALUE_INITIALIZATION
+#define BOOST_NO_CXX11_AUTO_DECLARATIONS
+#define BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
+#define BOOST_NO_CXX11_CHAR16_T
+#define BOOST_NO_CXX11_CHAR32_T
+#define BOOST_NO_CXX11_CONSTEXPR
+#define BOOST_NO_CXX11_DECLTYPE
+#define BOOST_NO_CXX11_DECLTYPE_N3276
+#define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#define BOOST_NO_CXX11_DELETED_FUNCTIONS
+#define BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+#define BOOST_NO_CXX11_FINAL
+#define BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#define BOOST_NO_CXX11_LAMBDAS
+#define BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#define BOOST_NO_CXX11_NOEXCEPT
+#define BOOST_NO_CXX11_NULLPTR
+#define BOOST_NO_CXX11_RANGE_BASED_FOR
+#define BOOST_NO_CXX11_RAW_LITERALS
+#define BOOST_NO_CXX11_REF_QUALIFIERS
+#define BOOST_NO_CXX11_RVALUE_REFERENCES
+#define BOOST_NO_CXX11_SCOPED_ENUMS
+#define BOOST_NO_CXX11_SFINAE_EXPR
+#define BOOST_NO_CXX11_STATIC_ASSERT
+#define BOOST_NO_CXX11_TEMPLATE_ALIASES
+#define BOOST_NO_CXX11_THREAD_LOCAL
+#define BOOST_NO_CXX11_UNICODE_LITERALS
+#define BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#define BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#define BOOST_NO_CXX11_VARIADIC_MACROS
+#define BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#define BOOST_NO_CXX11_UNRESTRICTED_UNION
+#define BOOST_NO_SFINAE_EXPR
+#define BOOST_NO_TWO_PHASE_NAME_LOOKUP
+
+//#define BOOST_BCB_PARTIAL_SPECIALIZATION_BUG
+#define BOOST_MATH_DISABLE_STD_FPCLASSIFY
+//#define BOOST_HAS_FPCLASSIFY
+
+#define BOOST_SP_USE_PTHREADS 
+#define BOOST_AC_USE_PTHREADS 
+
+//
+// Everything that follows is working around what are thought to be
+// compiler shortcomings. Revist all of these regularly.
+//
+
+//#define BOOST_USE_ENUM_STATIC_ASSERT
+//#define BOOST_BUGGY_INTEGRAL_CONSTANT_EXPRESSIONS //(this may be implied by the previous #define
+
+// These constants should be provided by the compiler.
+
+#ifndef __ATOMIC_RELAXED
+#define __ATOMIC_RELAXED 0
+#define __ATOMIC_CONSUME 1
+#define __ATOMIC_ACQUIRE 2
+#define __ATOMIC_RELEASE 3
+#define __ATOMIC_ACQ_REL 4
+#define __ATOMIC_SEQ_CST 5
+#endif
+
+////
+//// Version changes
+////
+
+//
+// 8.5.0
+//
+
+#if BOOST_CRAY_VERSION >= 80500
+
+#if __cplusplus >= 201103L
+
+#undef BOOST_HAS_NRVO
+#undef BOOST_NO_COMPLETE_VALUE_INITIALIZATION
+#undef BOOST_NO_CXX11_AUTO_DECLARATIONS
+#undef BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
+#undef BOOST_NO_CXX11_CHAR16_T
+#undef BOOST_NO_CXX11_CHAR32_T
+#undef BOOST_NO_CXX11_CONSTEXPR
+#undef BOOST_NO_CXX11_DECLTYPE
+#undef BOOST_NO_CXX11_DECLTYPE_N3276
+#undef BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#undef BOOST_NO_CXX11_DELETED_FUNCTIONS
+#undef BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+#undef BOOST_NO_CXX11_FINAL
+#undef BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#undef BOOST_NO_CXX11_LAMBDAS
+#undef BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#undef BOOST_NO_CXX11_NOEXCEPT
+#undef BOOST_NO_CXX11_NULLPTR
+#undef BOOST_NO_CXX11_RANGE_BASED_FOR
+#undef BOOST_NO_CXX11_RAW_LITERALS
+#undef BOOST_NO_CXX11_REF_QUALIFIERS
+#undef BOOST_NO_CXX11_RVALUE_REFERENCES
+#undef BOOST_NO_CXX11_SCOPED_ENUMS
+#undef BOOST_NO_CXX11_SFINAE_EXPR
+#undef BOOST_NO_CXX11_STATIC_ASSERT
+#undef BOOST_NO_CXX11_TEMPLATE_ALIASES
+#undef BOOST_NO_CXX11_THREAD_LOCAL
+#undef BOOST_NO_CXX11_UNICODE_LITERALS
+#undef BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#undef BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#undef BOOST_NO_CXX11_VARIADIC_MACROS
+#undef BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#undef BOOST_NO_CXX11_UNRESTRICTED_UNION
+#undef BOOST_NO_SFINAE_EXPR
+#undef BOOST_NO_TWO_PHASE_NAME_LOOKUP
+#undef BOOST_MATH_DISABLE_STD_FPCLASSIFY
+#undef BOOST_SP_USE_PTHREADS 
+#undef BOOST_AC_USE_PTHREADS 
+
+#define BOOST_HAS_VARIADIC_TMPL
+#define BOOST_HAS_UNISTD_H
+#define BOOST_HAS_TR1_COMPLEX_INVERSE_TRIG
+#define BOOST_HAS_TR1_COMPLEX_OVERLOADS
+#define BOOST_HAS_STDINT_H
+#define BOOST_HAS_STATIC_ASSERT
+#define BOOST_HAS_SIGACTION
+#define BOOST_HAS_SCHED_YIELD
+#define BOOST_HAS_RVALUE_REFS
+#define BOOST_HAS_PTHREADS
+#define BOOST_HAS_PTHREAD_YIELD
+#define BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE
+#define BOOST_HAS_PARTIAL_STD_ALLOCATOR
+#define BOOST_HAS_NRVO
+#define BOOST_HAS_NL_TYPES_H
+#define BOOST_HAS_NANOSLEEP
+#define BOOST_NO_CXX11_SMART_PTR
+#define BOOST_NO_CXX11_HDR_FUNCTIONAL
+#define BOOST_NO_CXX14_CONSTEXPR
+#define BOOST_HAS_LONG_LONG
+#define BOOST_HAS_FLOAT128
+
+#if __cplusplus < 201402L
+#define BOOST_NO_CXX11_DECLTYPE_N3276
+#endif // __cplusplus < 201402L
+
+#endif // __cplusplus >= 201103L
+
+#endif // BOOST_CRAY_VERSION >= 80500
+
+//
+// 8.6.4
+// (versions prior to 8.6.5 do not define _RELEASE_PATCHLEVEL)
+//
+
+#if BOOST_CRAY_VERSION >= 80600
+
+#if __cplusplus >= 199711L
+#define BOOST_HAS_FLOAT128
+#define BOOST_HAS_PTHREAD_YIELD // This is a platform macro, but it improves test results.
+#define BOOST_NO_COMPLETE_VALUE_INITIALIZATION // This is correct. Test compiles, but fails to run.
+#undef  BOOST_NO_CXX11_CHAR16_T
+#undef  BOOST_NO_CXX11_CHAR32_T
+#undef  BOOST_NO_CXX11_INLINE_NAMESPACES
+#undef  BOOST_NO_CXX11_FINAL
+#undef  BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS
+#undef  BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#define BOOST_NO_CXX11_SFINAE_EXPR // This is correct, even though '*_fail.cpp' test fails.
+#undef  BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#undef  BOOST_NO_CXX11_VARIADIC_MACROS
+#undef  BOOST_NO_CXX11_VARIADIC_TEMPLATES
+// 'BOOST_NO_DEDUCED_TYPENAME' test is broken. The test files are enabled /
+// disabled with an '#ifdef BOOST_DEDUCED_TYPENAME'. However,
+// 'boost/libs/config/include/boost/config/detail/suffix.hpp' ensures that
+// 'BOOST_DEDUCED_TYPENAME' is always defined (the value it is defined as
+// depends on 'BOOST_NO_DEDUCED_TYPENAME'). So, modifying
+// 'BOOST_NO_DEDUCED_TYPENAME' has no effect on which tests are run.
+//
+// The 'no_ded_typename_pass.cpp' test should always compile and run
+// successfully, because 'BOOST_DEDUCED_TYPENAME' must always have an
+// appropriate value (it's not just something that you turn on or off).
+// Therefore, if you wish to test changes to 'BOOST_NO_DEDUCED_TYPENAME',
+// you have to modify 'no_ded_typename_pass.cpp' to unconditionally include
+// 'boost_no_ded_typename.ipp'.
+#undef  BOOST_NO_DEDUCED_TYPENAME // This is correct. Test is broken.
+#undef  BOOST_NO_SFINAE_EXPR
+#undef  BOOST_NO_TWO_PHASE_NAME_LOOKUP
+#endif // __cplusplus >= 199711L
+
+#if __cplusplus >= 201103L
+#undef  BOOST_NO_CXX11_ALIGNAS
+#undef  BOOST_NO_CXX11_DECLTYPE_N3276
+#define BOOST_NO_CXX11_HDR_ATOMIC
+#undef  BOOST_NO_CXX11_HDR_FUNCTIONAL
+#define BOOST_NO_CXX11_HDR_REGEX // This is correct. Test compiles, but fails to run.
+#undef  BOOST_NO_CXX11_SFINAE_EXPR
+#undef  BOOST_NO_CXX11_SMART_PTR
+#undef  BOOST_NO_CXX11_TRAILING_RESULT_TYPES
+#endif // __cplusplus >= 201103L
+
+#if __cplusplus >= 201402L
+#undef  BOOST_NO_CXX14_CONSTEXPR
+#define BOOST_NO_CXX14_DIGIT_SEPARATORS
+#endif // __cplusplus == 201402L
+
+#endif // BOOST_CRAY_VERSION >= 80600
+
+//
+// 8.6.5
+// (no change from 8.6.4)
+//
+
+//
+// 8.7.0
+//
+
+#if BOOST_CRAY_VERSION >= 80700
+
+#if __cplusplus >= 199711L
+#endif // __cplusplus >= 199711L
+
+#if __cplusplus >= 201103L
+#undef  BOOST_NO_CXX11_HDR_ATOMIC
+#undef  BOOST_NO_CXX11_HDR_REGEX
+#endif // __cplusplus >= 201103L
+
+#if __cplusplus >= 201402L
+#endif // __cplusplus == 201402L
+
+#endif // BOOST_CRAY_VERSION >= 80700
+
+//
+// Next release
+//
+
+#if BOOST_CRAY_VERSION > 80799
+
+#if __cplusplus >= 199711L
+#endif // __cplusplus >= 199711L
+
+#if __cplusplus >= 201103L
+#endif // __cplusplus >= 201103L
+
+#if __cplusplus >= 201402L
+#endif // __cplusplus == 201402L
+
+#endif // BOOST_CRAY_VERSION > 80799
+
+////
+//// Remove temporary macros
+////
+
+// I've commented out some '#undef' statements to signify that we purposely
+// want to keep certain macros.
+
+//#undef __GXX_EXPERIMENTAL_CXX0X__
+//#undef BOOST_COMPILER
+#undef BOOST_GCC_VERSION
+#undef BOOST_CRAY_VERSION
--- a/oss/boost/boost_1_73_0/boost/config/compiler/diab.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/diab.hpp
@@ -0,0 +1,26 @@
+//  (C) Copyright Brian Kuhl 2016.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+// Check this is a recent EDG based compiler, otherwise we don't support it here:
+
+
+#ifndef __EDG_VERSION__
+#     error "Unknown Diab compiler version - please run the configure tests and report the results"
+#endif
+
+#include "boost/config/compiler/common_edg.hpp"
+
+#define BOOST_NO_TWO_PHASE_NAME_LOOKUP
+#define BOOST_BUGGY_INTEGRAL_CONSTANT_EXPRESSIONS
+
+#define BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE
+#define BOOST_LOG_NO_MEMBER_TEMPLATE_FRIENDS
+#define BOOST_REGEX_NO_EXTERNAL_TEMPLATES
+
+#define BOOST_NO_CXX11_HDR_INITIALIZER_LIST
+#define BOOST_NO_CXX11_HDR_CODECVT
+#define BOOST_NO_CXX11_NUMERIC_LIMITS 
+
+#define BOOST_COMPILER "Wind River Diab " BOOST_STRINGIZE(__VERSION_NUMBER__)
--- a/oss/boost/boost_1_73_0/boost/config/compiler/digitalmars.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/digitalmars.hpp
@@ -0,0 +1,141 @@
+//  Copyright (C) Christof Meerwald 2003
+//  Copyright (C) Dan Watkins 2003
+//
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  Digital Mars C++ compiler setup:
+#define BOOST_COMPILER __DMC_VERSION_STRING__
+
+#define BOOST_HAS_LONG_LONG
+#define BOOST_HAS_PRAGMA_ONCE
+
+#if !defined(BOOST_STRICT_CONFIG)
+#define BOOST_NO_MEMBER_TEMPLATE_FRIENDS
+#define BOOST_NO_OPERATORS_IN_NAMESPACE
+#define BOOST_NO_UNREACHABLE_RETURN_DETECTION
+#define BOOST_NO_SFINAE
+#define BOOST_NO_USING_TEMPLATE
+#define BOOST_FUNCTION_SCOPE_USING_DECLARATION_BREAKS_ADL
+#endif
+
+//
+// has macros:
+#define BOOST_HAS_DIRENT_H
+#define BOOST_HAS_STDINT_H
+#define BOOST_HAS_WINTHREADS
+
+#if (__DMC__ >= 0x847)
+#define BOOST_HAS_EXPM1
+#define BOOST_HAS_LOG1P
+#endif
+
+//
+// Is this really the best way to detect whether the std lib is in namespace std?
+//
+#ifdef __cplusplus
+#include <cstddef>
+#endif
+#if !defined(__STL_IMPORT_VENDOR_CSTD) && !defined(_STLP_IMPORT_VENDOR_CSTD)
+#  define BOOST_NO_STDC_NAMESPACE
+#endif
+
+
+// check for exception handling support:
+#if !defined(_CPPUNWIND) && !defined(BOOST_NO_EXCEPTIONS)
+#  define BOOST_NO_EXCEPTIONS
+#endif
+
+//
+// C++0x features
+//
+#define BOOST_NO_CXX11_AUTO_DECLARATIONS
+#define BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
+#define BOOST_NO_CXX11_CHAR16_T
+#define BOOST_NO_CXX11_CHAR32_T
+#define BOOST_NO_CXX11_CONSTEXPR
+#define BOOST_NO_CXX11_DECLTYPE
+#define BOOST_NO_CXX11_DECLTYPE_N3276
+#define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#define BOOST_NO_CXX11_DELETED_FUNCTIONS
+#define BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+#define BOOST_NO_CXX11_EXTERN_TEMPLATE
+#define BOOST_NO_CXX11_HDR_INITIALIZER_LIST
+#define BOOST_NO_CXX11_LAMBDAS
+#define BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#define BOOST_NO_CXX11_NOEXCEPT
+#define BOOST_NO_CXX11_NULLPTR
+#define BOOST_NO_CXX11_RANGE_BASED_FOR
+#define BOOST_NO_CXX11_RAW_LITERALS
+#define BOOST_NO_CXX11_RVALUE_REFERENCES
+#define BOOST_NO_CXX11_SCOPED_ENUMS
+#define BOOST_NO_SFINAE_EXPR
+#define BOOST_NO_CXX11_SFINAE_EXPR
+#define BOOST_NO_CXX11_STATIC_ASSERT
+#define BOOST_NO_CXX11_TEMPLATE_ALIASES
+#define BOOST_NO_CXX11_UNICODE_LITERALS
+#define BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#define BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#define BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#define BOOST_NO_CXX11_ALIGNAS
+#define BOOST_NO_CXX11_TRAILING_RESULT_TYPES
+#define BOOST_NO_CXX11_INLINE_NAMESPACES
+#define BOOST_NO_CXX11_REF_QUALIFIERS
+#define BOOST_NO_CXX11_FINAL
+#define BOOST_NO_CXX11_THREAD_LOCAL
+#define BOOST_NO_CXX11_UNRESTRICTED_UNION
+
+// C++ 14:
+#if !defined(__cpp_aggregate_nsdmi) || (__cpp_aggregate_nsdmi < 201304)
+#  define BOOST_NO_CXX14_AGGREGATE_NSDMI
+#endif
+#if !defined(__cpp_binary_literals) || (__cpp_binary_literals < 201304)
+#  define BOOST_NO_CXX14_BINARY_LITERALS
+#endif
+#if !defined(__cpp_constexpr) || (__cpp_constexpr < 201304)
+#  define BOOST_NO_CXX14_CONSTEXPR
+#endif
+#if !defined(__cpp_decltype_auto) || (__cpp_decltype_auto < 201304)
+#  define BOOST_NO_CXX14_DECLTYPE_AUTO
+#endif
+#if (__cplusplus < 201304) // There's no SD6 check for this....
+#  define BOOST_NO_CXX14_DIGIT_SEPARATORS
+#endif
+#if !defined(__cpp_generic_lambdas) || (__cpp_generic_lambdas < 201304)
+#  define BOOST_NO_CXX14_GENERIC_LAMBDAS
+#endif
+#if !defined(__cpp_init_captures) || (__cpp_init_captures < 201304)
+#  define BOOST_NO_CXX14_INITIALIZED_LAMBDA_CAPTURES
+#endif
+#if !defined(__cpp_return_type_deduction) || (__cpp_return_type_deduction < 201304)
+#  define BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION
+#endif
+#if !defined(__cpp_variable_templates) || (__cpp_variable_templates < 201304)
+#  define BOOST_NO_CXX14_VARIABLE_TEMPLATES
+#endif
+
+// C++17
+#if !defined(__cpp_structured_bindings) || (__cpp_structured_bindings < 201606)
+#  define BOOST_NO_CXX17_STRUCTURED_BINDINGS
+#endif
+#if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606)
+#  define BOOST_NO_CXX17_INLINE_VARIABLES
+#endif
+#if !defined(__cpp_fold_expressions) || (__cpp_fold_expressions < 201603)
+#  define BOOST_NO_CXX17_FOLD_EXPRESSIONS
+#endif
+#if !defined(__cpp_if_constexpr) || (__cpp_if_constexpr < 201606)
+#  define BOOST_NO_CXX17_IF_CONSTEXPR
+#endif
+
+#if (__DMC__ <= 0x840)
+#error "Compiler not supported or configured - please reconfigure"
+#endif
+//
+// last known and checked version is ...:
+#if (__DMC__ > 0x848)
+#  if defined(BOOST_ASSERT_CONFIG)
+#     error "boost: Unknown compiler version - please run the configure tests and report the results"
+#  endif
+#endif
--- a/oss/boost/boost_1_73_0/boost/config/compiler/gcc.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/gcc.hpp
@@ -0,0 +1,367 @@
+//  (C) Copyright John Maddock 2001 - 2003.
+//  (C) Copyright Darin Adler 2001 - 2002.
+//  (C) Copyright Jens Maurer 2001 - 2002.
+//  (C) Copyright Beman Dawes 2001 - 2003.
+//  (C) Copyright Douglas Gregor 2002.
+//  (C) Copyright David Abrahams 2002 - 2003.
+//  (C) Copyright Synge Todo 2003.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+//  GNU C++ compiler setup.
+
+//
+// Define BOOST_GCC so we know this is "real" GCC and not some pretender:
+//
+#define BOOST_GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
+#if !defined(__CUDACC__)
+#define BOOST_GCC BOOST_GCC_VERSION
+#endif
+
+#if defined(__GXX_EXPERIMENTAL_CXX0X__) || (__cplusplus >= 201103L)
+#  define BOOST_GCC_CXX11
+#endif
+
+#if __GNUC__ == 3
+#  if defined (__PATHSCALE__)
+#     define BOOST_NO_TWO_PHASE_NAME_LOOKUP
+#     define BOOST_NO_IS_ABSTRACT
+#  endif
+
+#  if __GNUC_MINOR__ < 4
+#     define BOOST_NO_IS_ABSTRACT
+#  endif
+#  define BOOST_NO_CXX11_EXTERN_TEMPLATE
+#endif
+#if __GNUC__ < 4
+//
+// All problems to gcc-3.x and earlier here:
+//
+#define BOOST_NO_TWO_PHASE_NAME_LOOKUP
+#  ifdef __OPEN64__
+#     define BOOST_NO_IS_ABSTRACT
+#  endif
+#endif
+
+// GCC prior to 3.4 had #pragma once too but it didn't work well with filesystem links
+#if BOOST_GCC_VERSION >= 30400
+#define BOOST_HAS_PRAGMA_ONCE
+#endif
+
+#if BOOST_GCC_VERSION < 40400
+// Previous versions of GCC did not completely implement value-initialization:
+// GCC Bug 30111, "Value-initialization of POD base class doesn't initialize
+// members", reported by Jonathan Wakely in 2006,
+// http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30111 (fixed for GCC 4.4)
+// GCC Bug 33916, "Default constructor fails to initialize array members",
+// reported by Michael Elizabeth Chastain in 2007,
+// http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33916 (fixed for GCC 4.2.4)
+// See also: http://www.boost.org/libs/utility/value_init.htm#compiler_issues
+#define BOOST_NO_COMPLETE_VALUE_INITIALIZATION
+#endif
+
+#if !defined(__EXCEPTIONS) && !defined(BOOST_NO_EXCEPTIONS)
+# define BOOST_NO_EXCEPTIONS
+#endif
+
+
+//
+// Threading support: Turn this on unconditionally here (except for
+// those platforms where we can know for sure). It will get turned off again
+// later if no threading API is detected.
+//
+#if !defined(__MINGW32__) && !defined(linux) && !defined(__linux) && !defined(__linux__)
+# define BOOST_HAS_THREADS
+#endif
+
+//
+// gcc has "long long"
+// Except on Darwin with standard compliance enabled (-pedantic)
+// Apple gcc helpfully defines this macro we can query
+//
+#if !defined(__DARWIN_NO_LONG_LONG)
+# define BOOST_HAS_LONG_LONG
+#endif
+
+//
+// gcc implements the named return value optimization since version 3.1
+//
+#define BOOST_HAS_NRVO
+
+// Branch prediction hints
+#define BOOST_LIKELY(x) __builtin_expect(x, 1)
+#define BOOST_UNLIKELY(x) __builtin_expect(x, 0)
+
+//
+// Dynamic shared object (DSO) and dynamic-link library (DLL) support
+//
+#if __GNUC__ >= 4
+#  if defined(_WIN32) || defined(__WIN32__) || defined(WIN32) || defined(__CYGWIN__)
+     // All Win32 development environments, including 64-bit Windows and MinGW, define
+     // _WIN32 or one of its variant spellings. Note that Cygwin is a POSIX environment,
+     // so does not define _WIN32 or its variants, but still supports dllexport/dllimport.
+#    define BOOST_HAS_DECLSPEC
+#    define BOOST_SYMBOL_EXPORT __attribute__((__dllexport__))
+#    define BOOST_SYMBOL_IMPORT __attribute__((__dllimport__))
+#  else
+#    define BOOST_SYMBOL_EXPORT __attribute__((__visibility__("default")))
+#    define BOOST_SYMBOL_IMPORT
+#  endif
+#  define BOOST_SYMBOL_VISIBLE __attribute__((__visibility__("default")))
+#else
+// config/platform/win32.hpp will define BOOST_SYMBOL_EXPORT, etc., unless already defined
+#  define BOOST_SYMBOL_EXPORT
+#endif
+
+//
+// RTTI and typeinfo detection is possible post gcc-4.3:
+//
+#if BOOST_GCC_VERSION > 40300
+#  ifndef __GXX_RTTI
+#     ifndef BOOST_NO_TYPEID
+#        define BOOST_NO_TYPEID
+#     endif
+#     ifndef BOOST_NO_RTTI
+#        define BOOST_NO_RTTI
+#     endif
+#  endif
+#endif
+
+//
+// Recent GCC versions have __int128 when in 64-bit mode.
+//
+// We disable this if the compiler is really nvcc with C++03 as it
+// doesn't actually support __int128 as of CUDA_VERSION=7500
+// even though it defines __SIZEOF_INT128__.
+// See https://svn.boost.org/trac/boost/ticket/8048
+//     https://svn.boost.org/trac/boost/ticket/11852
+// Only re-enable this for nvcc if you're absolutely sure
+// of the circumstances under which it's supported:
+//
+#if defined(__CUDACC__)
+#  if defined(BOOST_GCC_CXX11)
+#    define BOOST_NVCC_CXX11
+#  else
+#    define BOOST_NVCC_CXX03
+#  endif
+#endif
+
+#if defined(__SIZEOF_INT128__) && !defined(BOOST_NVCC_CXX03)
+#  define BOOST_HAS_INT128
+#endif
+//
+// Recent GCC versions have a __float128 native type, we need to
+// include a std lib header to detect this - not ideal, but we'll
+// be including <cstddef> later anyway when we select the std lib.
+//
+// Nevertheless, as of CUDA 7.5, using __float128 with the host
+// compiler in pre-C++11 mode is still not supported.
+// See https://svn.boost.org/trac/boost/ticket/11852
+//
+#ifdef __cplusplus
+#include <cstddef>
+#else
+#include <stddef.h>
+#endif
+#if defined(_GLIBCXX_USE_FLOAT128) && !defined(__STRICT_ANSI__) && !defined(BOOST_NVCC_CXX03)
+# define BOOST_HAS_FLOAT128
+#endif
+
+// C++0x features in 4.3.n and later
+//
+#if (BOOST_GCC_VERSION >= 40300) && defined(BOOST_GCC_CXX11)
+// C++0x features are only enabled when -std=c++0x or -std=gnu++0x are
+// passed on the command line, which in turn defines
+// __GXX_EXPERIMENTAL_CXX0X__.
+#  define BOOST_HAS_DECLTYPE
+#  define BOOST_HAS_RVALUE_REFS
+#  define BOOST_HAS_STATIC_ASSERT
+#  define BOOST_HAS_VARIADIC_TMPL
+#else
+#  define BOOST_NO_CXX11_DECLTYPE
+#  define BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#  define BOOST_NO_CXX11_RVALUE_REFERENCES
+#  define BOOST_NO_CXX11_STATIC_ASSERT
+#endif
+
+// C++0x features in 4.4.n and later
+//
+#if (BOOST_GCC_VERSION < 40400) || !defined(BOOST_GCC_CXX11)
+#  define BOOST_NO_CXX11_AUTO_DECLARATIONS
+#  define BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
+#  define BOOST_NO_CXX11_CHAR16_T
+#  define BOOST_NO_CXX11_CHAR32_T
+#  define BOOST_NO_CXX11_HDR_INITIALIZER_LIST
+#  define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#  define BOOST_NO_CXX11_DELETED_FUNCTIONS
+#  define BOOST_NO_CXX11_TRAILING_RESULT_TYPES
+#  define BOOST_NO_CXX11_INLINE_NAMESPACES
+#  define BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#endif
+
+#if BOOST_GCC_VERSION < 40500
+#  define BOOST_NO_SFINAE_EXPR
+#endif
+
+// GCC 4.5 forbids declaration of defaulted functions in private or protected sections
+#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ == 5) || !defined(BOOST_GCC_CXX11)
+#  define BOOST_NO_CXX11_NON_PUBLIC_DEFAULTED_FUNCTIONS
+#endif
+
+// C++0x features in 4.5.0 and later
+//
+#if (BOOST_GCC_VERSION < 40500) || !defined(BOOST_GCC_CXX11)
+#  define BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+#  define BOOST_NO_CXX11_LAMBDAS
+#  define BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#  define BOOST_NO_CXX11_RAW_LITERALS
+#  define BOOST_NO_CXX11_UNICODE_LITERALS
+#endif
+
+// C++0x features in 4.5.1 and later
+//
+#if (BOOST_GCC_VERSION < 40501) || !defined(BOOST_GCC_CXX11)
+// scoped enums have a serious bug in 4.4.0, so define BOOST_NO_CXX11_SCOPED_ENUMS before 4.5.1
+// See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38064
+#  define BOOST_NO_CXX11_SCOPED_ENUMS
+#endif
+
+// C++0x features in 4.6.n and later
+//
+#if (BOOST_GCC_VERSION < 40600) || !defined(BOOST_GCC_CXX11)
+#define BOOST_NO_CXX11_DEFAULTED_MOVES
+#define BOOST_NO_CXX11_NOEXCEPT
+#define BOOST_NO_CXX11_NULLPTR
+#define BOOST_NO_CXX11_RANGE_BASED_FOR
+#define BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#endif
+
+// C++0x features in 4.7.n and later
+//
+#if (BOOST_GCC_VERSION < 40700) || !defined(BOOST_GCC_CXX11)
+// Note that while constexpr is partly supported in gcc-4.6 it's a 
+// pre-std version with several bugs:
+#  define BOOST_NO_CXX11_CONSTEXPR
+#  define BOOST_NO_CXX11_FINAL
+#  define BOOST_NO_CXX11_TEMPLATE_ALIASES
+#  define BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#  define BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS
+#endif
+
+// C++0x features in 4.8.n and later
+//
+#if (BOOST_GCC_VERSION < 40800) || !defined(BOOST_GCC_CXX11)
+#  define BOOST_NO_CXX11_ALIGNAS
+#  define BOOST_NO_CXX11_THREAD_LOCAL
+#  define BOOST_NO_CXX11_SFINAE_EXPR
+#endif
+
+// C++0x features in 4.8.1 and later
+//
+#if (BOOST_GCC_VERSION < 40801) || !defined(BOOST_GCC_CXX11)
+#  define BOOST_NO_CXX11_DECLTYPE_N3276
+#  define BOOST_NO_CXX11_REF_QUALIFIERS
+#  define BOOST_NO_CXX14_BINARY_LITERALS
+#endif
+
+// C++0x features in 5.1 and later
+//
+#if (BOOST_GCC_VERSION < 50100) || !defined(BOOST_GCC_CXX11)
+#  define BOOST_NO_CXX11_UNRESTRICTED_UNION
+#endif
+
+// C++14 features in 4.9.0 and later
+//
+#if (BOOST_GCC_VERSION < 40900) || (__cplusplus < 201300)
+#  define BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION
+#  define BOOST_NO_CXX14_GENERIC_LAMBDAS
+#  define BOOST_NO_CXX14_DIGIT_SEPARATORS
+#  define BOOST_NO_CXX14_DECLTYPE_AUTO
+#  if !((BOOST_GCC_VERSION >= 40801) && (BOOST_GCC_VERSION < 40900) && defined(BOOST_GCC_CXX11))
+#     define BOOST_NO_CXX14_INITIALIZED_LAMBDA_CAPTURES
+#  endif
+#endif
+
+
+// C++ 14:
+#if !defined(__cpp_aggregate_nsdmi) || (__cpp_aggregate_nsdmi < 201304)
+#  define BOOST_NO_CXX14_AGGREGATE_NSDMI
+#endif
+#if !defined(__cpp_constexpr) || (__cpp_constexpr < 201304)
+#  define BOOST_NO_CXX14_CONSTEXPR
+#endif
+#if (BOOST_GCC_VERSION < 50200) || !defined(__cpp_variable_templates) || (__cpp_variable_templates < 201304)
+#  define BOOST_NO_CXX14_VARIABLE_TEMPLATES
+#endif
+
+// C++17
+#if !defined(__cpp_structured_bindings) || (__cpp_structured_bindings < 201606)
+#  define BOOST_NO_CXX17_STRUCTURED_BINDINGS
+#endif
+#if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606)
+#  define BOOST_NO_CXX17_INLINE_VARIABLES
+#endif
+#if !defined(__cpp_fold_expressions) || (__cpp_fold_expressions < 201603)
+#  define BOOST_NO_CXX17_FOLD_EXPRESSIONS
+#endif
+#if !defined(__cpp_if_constexpr) || (__cpp_if_constexpr < 201606)
+#  define BOOST_NO_CXX17_IF_CONSTEXPR
+#endif
+
+#if __GNUC__ >= 7
+#  define BOOST_FALLTHROUGH __attribute__((fallthrough))
+#endif
+
+#if defined(__MINGW32__) && !defined(__MINGW64__)
+// Currently (March 2019) thread_local is broken on mingw for all current 32bit compiler releases, see
+// https://sourceforge.net/p/mingw-w64/bugs/527/
+// Not setting this causes program termination on thread exit.
+#define BOOST_NO_CXX11_THREAD_LOCAL
+#endif
+
+//
+// Unused attribute:
+#if __GNUC__ >= 4
+#  define BOOST_ATTRIBUTE_UNUSED __attribute__((__unused__))
+#endif
+
+// Type aliasing hint. Supported since gcc 3.3.
+#define BOOST_MAY_ALIAS __attribute__((__may_alias__))
+
+//
+// __builtin_unreachable:
+#if BOOST_GCC_VERSION >= 40500
+#define BOOST_UNREACHABLE_RETURN(x) __builtin_unreachable();
+#endif
+
+#ifndef BOOST_COMPILER
+#  define BOOST_COMPILER "GNU C++ version " __VERSION__
+#endif
+
+// ConceptGCC compiler:
+//   http://www.generic-programming.org/software/ConceptGCC/
+#ifdef __GXX_CONCEPTS__
+#  define BOOST_HAS_CONCEPTS
+#  define BOOST_COMPILER "ConceptGCC version " __VERSION__
+#endif
+
+// versions check:
+// we don't know gcc prior to version 3.30:
+#if (BOOST_GCC_VERSION< 30300)
+#  error "Compiler not configured - please reconfigure"
+#endif
+//
+// last known and checked version is 8.1:
+#if (BOOST_GCC_VERSION > 80100)
+#  if defined(BOOST_ASSERT_CONFIG)
+#     error "Boost.Config is older than your compiler - please check for an updated Boost release."
+#  else
+// we don't emit warnings here anymore since there are no defect macros defined for
+// gcc post 3.4, so any failures are gcc regressions...
+//#     warning "boost: Unknown compiler version - please run the configure tests and report the results"
+#  endif
+#endif
+
--- a/oss/boost/boost_1_73_0/boost/config/compiler/gcc_xml.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/gcc_xml.hpp
@@ -0,0 +1,112 @@
+//  (C) Copyright John Maddock 2006.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+//  GCC-XML C++ compiler setup:
+
+#  if !defined(__GCCXML_GNUC__) || ((__GCCXML_GNUC__ <= 3) && (__GCCXML_GNUC_MINOR__ <= 3))
+#     define BOOST_NO_IS_ABSTRACT
+#  endif
+
+//
+// Threading support: Turn this on unconditionally here (except for
+// those platforms where we can know for sure). It will get turned off again
+// later if no threading API is detected.
+//
+#if !defined(__MINGW32__) && !defined(_MSC_VER) && !defined(linux) && !defined(__linux) && !defined(__linux__)
+# define BOOST_HAS_THREADS
+#endif
+
+//
+// gcc has "long long"
+//
+#define BOOST_HAS_LONG_LONG
+
+// C++0x features:
+//
+#  define BOOST_NO_CXX11_CONSTEXPR
+#  define BOOST_NO_CXX11_NULLPTR
+#  define BOOST_NO_CXX11_TEMPLATE_ALIASES
+#  define BOOST_NO_CXX11_DECLTYPE
+#  define BOOST_NO_CXX11_DECLTYPE_N3276
+#  define BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#  define BOOST_NO_CXX11_RVALUE_REFERENCES
+#  define BOOST_NO_CXX11_STATIC_ASSERT
+#  define BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#  define BOOST_NO_CXX11_VARIADIC_MACROS
+#  define BOOST_NO_CXX11_AUTO_DECLARATIONS
+#  define BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
+#  define BOOST_NO_CXX11_CHAR16_T
+#  define BOOST_NO_CXX11_CHAR32_T
+#  define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#  define BOOST_NO_CXX11_DELETED_FUNCTIONS
+#  define BOOST_NO_CXX11_HDR_INITIALIZER_LIST
+#  define BOOST_NO_CXX11_SCOPED_ENUMS
+#  define BOOST_NO_SFINAE_EXPR
+#  define BOOST_NO_CXX11_SFINAE_EXPR
+#  define BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+#  define BOOST_NO_CXX11_LAMBDAS
+#  define BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#  define BOOST_NO_CXX11_RANGE_BASED_FOR
+#  define BOOST_NO_CXX11_RAW_LITERALS
+#  define BOOST_NO_CXX11_UNICODE_LITERALS
+#  define BOOST_NO_CXX11_NOEXCEPT
+#  define BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#  define BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#  define BOOST_NO_CXX11_ALIGNAS
+#  define BOOST_NO_CXX11_TRAILING_RESULT_TYPES
+#  define BOOST_NO_CXX11_INLINE_NAMESPACES
+#  define BOOST_NO_CXX11_REF_QUALIFIERS
+#  define BOOST_NO_CXX11_FINAL
+#  define BOOST_NO_CXX11_THREAD_LOCAL
+#  define BOOST_NO_CXX11_UNRESTRICTED_UNION
+
+// C++ 14:
+#if !defined(__cpp_aggregate_nsdmi) || (__cpp_aggregate_nsdmi < 201304)
+#  define BOOST_NO_CXX14_AGGREGATE_NSDMI
+#endif
+#if !defined(__cpp_binary_literals) || (__cpp_binary_literals < 201304)
+#  define BOOST_NO_CXX14_BINARY_LITERALS
+#endif
+#if !defined(__cpp_constexpr) || (__cpp_constexpr < 201304)
+#  define BOOST_NO_CXX14_CONSTEXPR
+#endif
+#if !defined(__cpp_decltype_auto) || (__cpp_decltype_auto < 201304)
+#  define BOOST_NO_CXX14_DECLTYPE_AUTO
+#endif
+#if (__cplusplus < 201304) // There's no SD6 check for this....
+#  define BOOST_NO_CXX14_DIGIT_SEPARATORS
+#endif
+#if !defined(__cpp_generic_lambdas) || (__cpp_generic_lambdas < 201304)
+#  define BOOST_NO_CXX14_GENERIC_LAMBDAS
+#endif
+#if !defined(__cpp_init_captures) || (__cpp_init_captures < 201304)
+#  define BOOST_NO_CXX14_INITIALIZED_LAMBDA_CAPTURES
+#endif
+#if !defined(__cpp_return_type_deduction) || (__cpp_return_type_deduction < 201304)
+#  define BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION
+#endif
+#if !defined(__cpp_variable_templates) || (__cpp_variable_templates < 201304)
+#  define BOOST_NO_CXX14_VARIABLE_TEMPLATES
+#endif
+
+// C++17
+#if !defined(__cpp_structured_bindings) || (__cpp_structured_bindings < 201606)
+#  define BOOST_NO_CXX17_STRUCTURED_BINDINGS
+#endif
+#if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606)
+#  define BOOST_NO_CXX17_INLINE_VARIABLES
+#endif
+#if !defined(__cpp_fold_expressions) || (__cpp_fold_expressions < 201603)
+#  define BOOST_NO_CXX17_FOLD_EXPRESSIONS
+#endif
+#if !defined(__cpp_if_constexpr) || (__cpp_if_constexpr < 201606)
+#  define BOOST_NO_CXX17_IF_CONSTEXPR
+#endif
+
+#define BOOST_COMPILER "GCC-XML C++ version " __GCCXML__
+
+
--- a/oss/boost/boost_1_73_0/boost/config/compiler/greenhills.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/greenhills.hpp
@@ -0,0 +1,28 @@
+//  (C) Copyright John Maddock 2001. 
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+//  Greenhills C++ compiler setup:
+
+#define BOOST_COMPILER "Greenhills C++ version " BOOST_STRINGIZE(__ghs)
+
+#include <boost/config/compiler/common_edg.hpp>
+
+//
+// versions check:
+// we don't support Greenhills prior to version 0:
+#if __ghs < 0
+#  error "Compiler not supported or configured - please reconfigure"
+#endif
+//
+// last known and checked version is 0:
+#if (__ghs > 0)
+#  if defined(BOOST_ASSERT_CONFIG)
+#     error "boost: Unknown compiler version - please run the configure tests and report the results"
+#  endif
+#endif
+
+
--- a/oss/boost/boost_1_73_0/boost/config/compiler/hp_acc.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/hp_acc.hpp
@@ -0,0 +1,148 @@
+//  (C) Copyright John Maddock 2001 - 2003.
+//  (C) Copyright Jens Maurer 2001 - 2003.
+//  (C) Copyright Aleksey Gurtovoy 2002.
+//  (C) Copyright David Abrahams 2002 - 2003.
+//  (C) Copyright Toon Knapen 2003.
+//  (C) Copyright Boris Gubenko 2006 - 2007.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+//  HP aCC C++ compiler setup:
+
+#if defined(__EDG__)
+#include <boost/config/compiler/common_edg.hpp>
+#endif
+
+#if (__HP_aCC <= 33100)
+#    define BOOST_NO_INTEGRAL_INT64_T
+#    define BOOST_NO_OPERATORS_IN_NAMESPACE
+#  if !defined(_NAMESPACE_STD)
+#     define BOOST_NO_STD_LOCALE
+#     define BOOST_NO_STRINGSTREAM
+#  endif
+#endif
+
+#if (__HP_aCC <= 33300)
+// member templates are sufficiently broken that we disable them for now
+#    define BOOST_NO_MEMBER_TEMPLATES
+#    define BOOST_NO_DEPENDENT_NESTED_DERIVATIONS
+#    define BOOST_NO_USING_DECLARATION_OVERLOADS_FROM_TYPENAME_BASE
+#endif
+
+#if (__HP_aCC <= 38000)
+#  define BOOST_NO_TWO_PHASE_NAME_LOOKUP
+#endif
+
+#if (__HP_aCC > 50000) && (__HP_aCC < 60000)
+#    define BOOST_NO_UNREACHABLE_RETURN_DETECTION
+#    define BOOST_NO_TEMPLATE_TEMPLATES
+#    define BOOST_NO_SWPRINTF
+#    define BOOST_NO_DEPENDENT_TYPES_IN_TEMPLATE_VALUE_PARAMETERS
+#    define BOOST_NO_IS_ABSTRACT
+#    define BOOST_NO_MEMBER_TEMPLATE_FRIENDS
+#endif
+
+// optional features rather than defects:
+#if (__HP_aCC >= 33900)
+#    define BOOST_HAS_LONG_LONG
+#    define BOOST_HAS_PARTIAL_STD_ALLOCATOR
+#endif
+
+#if (__HP_aCC >= 50000 ) && (__HP_aCC <= 53800 ) || (__HP_aCC < 31300 )
+#    define BOOST_NO_MEMBER_TEMPLATE_KEYWORD
+#endif
+
+// This macro should not be defined when compiling in strict ansi
+// mode, but, currently, we don't have the ability to determine
+// what standard mode we are compiling with. Some future version
+// of aCC6 compiler will provide predefined macros reflecting the
+// compilation options, including the standard mode.
+#if (__HP_aCC >= 60000) || ((__HP_aCC > 38000) && defined(__hpxstd98))
+#    define BOOST_NO_TWO_PHASE_NAME_LOOKUP
+#endif
+
+#define BOOST_COMPILER "HP aCC version " BOOST_STRINGIZE(__HP_aCC)
+
+//
+// versions check:
+// we don't support HP aCC prior to version 33000:
+#if __HP_aCC < 33000
+#  error "Compiler not supported or configured - please reconfigure"
+#endif
+
+//
+// Extended checks for supporting aCC on PA-RISC
+#if __HP_aCC > 30000 && __HP_aCC < 50000
+#  if __HP_aCC < 38000
+      // versions prior to version A.03.80 not supported
+#     error "Compiler version not supported - version A.03.80 or higher is required"
+#  elif !defined(__hpxstd98)
+      // must compile using the option +hpxstd98 with version A.03.80 and above
+#     error "Compiler option '+hpxstd98' is required for proper support"
+#  endif //PA-RISC
+#endif
+
+//
+// C++0x features
+//
+//   See boost\config\suffix.hpp for BOOST_NO_LONG_LONG
+//
+#if !defined(__EDG__)
+
+#define BOOST_NO_CXX11_AUTO_DECLARATIONS
+#define BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
+#define BOOST_NO_CXX11_CHAR16_T
+#define BOOST_NO_CXX11_CHAR32_T
+#define BOOST_NO_CXX11_CONSTEXPR
+#define BOOST_NO_CXX11_DECLTYPE
+#define BOOST_NO_CXX11_DECLTYPE_N3276
+#define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#define BOOST_NO_CXX11_DELETED_FUNCTIONS
+#define BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+#define BOOST_NO_CXX11_EXTERN_TEMPLATE
+#define BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#define BOOST_NO_CXX11_HDR_INITIALIZER_LIST
+#define BOOST_NO_CXX11_LAMBDAS
+#define BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#define BOOST_NO_CXX11_NOEXCEPT
+#define BOOST_NO_CXX11_NULLPTR
+#define BOOST_NO_CXX11_RANGE_BASED_FOR
+#define BOOST_NO_CXX11_RAW_LITERALS
+#define BOOST_NO_CXX11_RVALUE_REFERENCES
+#define BOOST_NO_CXX11_SCOPED_ENUMS
+#define BOOST_NO_SFINAE_EXPR
+#define BOOST_NO_CXX11_SFINAE_EXPR
+#define BOOST_NO_CXX11_STATIC_ASSERT
+#define BOOST_NO_CXX11_TEMPLATE_ALIASES
+#define BOOST_NO_CXX11_UNICODE_LITERALS
+#define BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#define BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#define BOOST_NO_CXX11_ALIGNAS
+#define BOOST_NO_CXX11_TRAILING_RESULT_TYPES
+#define BOOST_NO_CXX11_INLINE_NAMESPACES
+#define BOOST_NO_CXX11_REF_QUALIFIERS
+#define BOOST_NO_CXX11_THREAD_LOCAL
+#define BOOST_NO_CXX11_UNRESTRICTED_UNION
+
+/*
+  See https://forums13.itrc.hp.com/service/forums/questionanswer.do?threadId=1443331 and
+      https://forums13.itrc.hp.com/service/forums/questionanswer.do?threadId=1443436
+*/
+
+#if (__HP_aCC < 62500) || !defined(HP_CXX0x_SOURCE)
+  #define BOOST_NO_CXX11_VARIADIC_MACROS
+#endif
+
+#endif
+
+//
+// last known and checked version for HP-UX/ia64 is 61300
+// last known and checked version for PA-RISC is 38000
+#if ((__HP_aCC > 61300) || ((__HP_aCC > 38000) && defined(__hpxstd98)))
+#  if defined(BOOST_ASSERT_CONFIG)
+#     error "boost: Unknown compiler version - please run the configure tests and report the results"
+#  endif
+#endif
--- a/oss/boost/boost_1_73_0/boost/config/compiler/intel.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/intel.hpp
@@ -0,0 +1,574 @@
+//  (C) Copyright John Maddock 2001-8.
+//  (C) Copyright Peter Dimov 2001.
+//  (C) Copyright Jens Maurer 2001.
+//  (C) Copyright David Abrahams 2002 - 2003.
+//  (C) Copyright Aleksey Gurtovoy 2002 - 2003.
+//  (C) Copyright Guillaume Melquiond 2002 - 2003.
+//  (C) Copyright Beman Dawes 2003.
+//  (C) Copyright Martin Wille 2003.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+//  Intel compiler setup:
+
+#if defined(__INTEL_COMPILER) && (__INTEL_COMPILER >= 1500) && (defined(_MSC_VER) || defined(__GNUC__))
+
+#ifdef _MSC_VER
+
+#include <boost/config/compiler/visualc.hpp>
+
+#undef BOOST_MSVC
+#undef BOOST_MSVC_FULL_VER
+
+#if (__INTEL_COMPILER >= 1500) && (_MSC_VER >= 1900)
+//
+// These appear to be supported, even though VC++ may not support them:
+//
+#define BOOST_HAS_EXPM1
+#define BOOST_HAS_LOG1P
+#undef BOOST_NO_CXX14_BINARY_LITERALS
+// This one may be a little risky to enable??
+#undef BOOST_NO_SFINAE_EXPR
+
+#endif
+
+#if (__INTEL_COMPILER <= 1600) && !defined(BOOST_NO_CXX14_VARIABLE_TEMPLATES)
+#  define BOOST_NO_CXX14_VARIABLE_TEMPLATES
+#endif
+
+#else // defined(_MSC_VER)
+
+#include <boost/config/compiler/gcc.hpp>
+
+#undef BOOST_GCC_VERSION
+#undef BOOST_GCC_CXX11
+#undef BOOST_GCC
+#undef BOOST_FALLTHROUGH
+
+// Broken in all versions up to 17 (newer versions not tested)
+#if (__INTEL_COMPILER <= 1700) && !defined(BOOST_NO_CXX14_CONSTEXPR)
+#  define BOOST_NO_CXX14_CONSTEXPR
+#endif
+
+#if (__INTEL_COMPILER >= 1800) && (__cplusplus >= 201703)
+#  define BOOST_FALLTHROUGH [[fallthrough]]
+#endif
+
+#endif // defined(_MSC_VER)
+
+#undef BOOST_COMPILER
+
+#if defined(__INTEL_COMPILER)
+#if __INTEL_COMPILER == 9999
+#  define BOOST_INTEL_CXX_VERSION 1200 // Intel bug in 12.1.
+#else
+#  define BOOST_INTEL_CXX_VERSION __INTEL_COMPILER
+#endif
+#elif defined(__ICL)
+#  define BOOST_INTEL_CXX_VERSION __ICL
+#elif defined(__ICC)
+#  define BOOST_INTEL_CXX_VERSION __ICC
+#elif defined(__ECC)
+#  define BOOST_INTEL_CXX_VERSION __ECC
+#endif
+
+// Flags determined by comparing output of 'icpc -dM -E' with and without '-std=c++0x'
+#if (!(defined(_WIN32) || defined(_WIN64)) && defined(__STDC_HOSTED__) && (__STDC_HOSTED__ && (BOOST_INTEL_CXX_VERSION <= 1200))) || defined(__GXX_EXPERIMENTAL_CPP0X__) || defined(__GXX_EXPERIMENTAL_CXX0X__)
+#  define BOOST_INTEL_STDCXX0X
+#endif
+#if defined(_MSC_VER) && (_MSC_VER >= 1600)
+#  define BOOST_INTEL_STDCXX0X
+#endif
+
+#ifdef __GNUC__
+#  define BOOST_INTEL_GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
+#endif
+
+#if !defined(BOOST_COMPILER)
+#  if defined(BOOST_INTEL_STDCXX0X)
+#    define BOOST_COMPILER "Intel C++ C++0x mode version " BOOST_STRINGIZE(BOOST_INTEL_CXX_VERSION)
+#  else
+#    define BOOST_COMPILER "Intel C++ version " BOOST_STRINGIZE(BOOST_INTEL_CXX_VERSION)
+#  endif
+#endif
+
+#define BOOST_INTEL BOOST_INTEL_CXX_VERSION
+
+#if defined(_WIN32) || defined(_WIN64)
+#  define BOOST_INTEL_WIN BOOST_INTEL
+#else
+#  define BOOST_INTEL_LINUX BOOST_INTEL
+#endif
+
+#else // defined(__INTEL_COMPILER) && (__INTEL_COMPILER >= 1500) && (defined(_MSC_VER) || defined(__GNUC__))
+
+#include <boost/config/compiler/common_edg.hpp>
+
+#if defined(__INTEL_COMPILER)
+#if __INTEL_COMPILER == 9999
+#  define BOOST_INTEL_CXX_VERSION 1200 // Intel bug in 12.1.
+#else
+#  define BOOST_INTEL_CXX_VERSION __INTEL_COMPILER
+#endif
+#elif defined(__ICL)
+#  define BOOST_INTEL_CXX_VERSION __ICL
+#elif defined(__ICC)
+#  define BOOST_INTEL_CXX_VERSION __ICC
+#elif defined(__ECC)
+#  define BOOST_INTEL_CXX_VERSION __ECC
+#endif
+
+// Flags determined by comparing output of 'icpc -dM -E' with and without '-std=c++0x'
+#if (!(defined(_WIN32) || defined(_WIN64)) && defined(__STDC_HOSTED__) && (__STDC_HOSTED__ && (BOOST_INTEL_CXX_VERSION <= 1200))) || defined(__GXX_EXPERIMENTAL_CPP0X__) || defined(__GXX_EXPERIMENTAL_CXX0X__)
+#  define BOOST_INTEL_STDCXX0X
+#endif
+#if defined(_MSC_VER) && (_MSC_VER >= 1600)
+#  define BOOST_INTEL_STDCXX0X
+#endif
+
+#ifdef __GNUC__
+#  define BOOST_INTEL_GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
+#endif
+
+#if !defined(BOOST_COMPILER)
+#  if defined(BOOST_INTEL_STDCXX0X)
+#    define BOOST_COMPILER "Intel C++ C++0x mode version " BOOST_STRINGIZE(BOOST_INTEL_CXX_VERSION)
+#  else
+#    define BOOST_COMPILER "Intel C++ version " BOOST_STRINGIZE(BOOST_INTEL_CXX_VERSION)
+#  endif
+#endif
+
+#define BOOST_INTEL BOOST_INTEL_CXX_VERSION
+
+#if defined(_WIN32) || defined(_WIN64)
+#  define BOOST_INTEL_WIN BOOST_INTEL
+#else
+#  define BOOST_INTEL_LINUX BOOST_INTEL
+#endif
+
+#if (BOOST_INTEL_CXX_VERSION <= 600)
+
+#  if defined(_MSC_VER) && (_MSC_VER <= 1300) // added check for <= VC 7 (Peter Dimov)
+
+// Boost libraries assume strong standard conformance unless otherwise
+// indicated by a config macro. As configured by Intel, the EDG front-end
+// requires certain compiler options be set to achieve that strong conformance.
+// Particularly /Qoption,c,--arg_dep_lookup (reported by Kirk Klobe & Thomas Witt)
+// and /Zc:wchar_t,forScope. See boost-root/tools/build/intel-win32-tools.jam for
+// details as they apply to particular versions of the compiler. When the
+// compiler does not predefine a macro indicating if an option has been set,
+// this config file simply assumes the option has been set.
+// Thus BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP will not be defined, even if
+// the compiler option is not enabled.
+
+#     define BOOST_NO_SWPRINTF
+#  endif
+
+// Void returns, 64 bit integrals don't work when emulating VC 6 (Peter Dimov)
+
+#  if defined(_MSC_VER) && (_MSC_VER <= 1200)
+#     define BOOST_NO_VOID_RETURNS
+#     define BOOST_NO_INTEGRAL_INT64_T
+#  endif
+
+#endif
+
+#if (BOOST_INTEL_CXX_VERSION <= 710) && defined(_WIN32)
+#  define BOOST_NO_POINTER_TO_MEMBER_TEMPLATE_PARAMETERS
+#endif
+
+// See http://aspn.activestate.com/ASPN/Mail/Message/boost/1614864
+#if BOOST_INTEL_CXX_VERSION < 600
+#  define BOOST_NO_INTRINSIC_WCHAR_T
+#else
+// We should test the macro _WCHAR_T_DEFINED to check if the compiler
+// supports wchar_t natively. *BUT* there is a problem here: the standard
+// headers define this macro if they typedef wchar_t. Anyway, we're lucky
+// because they define it without a value, while Intel C++ defines it
+// to 1. So we can check its value to see if the macro was defined natively
+// or not.
+// Under UNIX, the situation is exactly the same, but the macro _WCHAR_T
+// is used instead.
+#  if ((_WCHAR_T_DEFINED + 0) == 0) && ((_WCHAR_T + 0) == 0)
+#    define BOOST_NO_INTRINSIC_WCHAR_T
+#  endif
+#endif
+
+#if defined(__GNUC__) && !defined(BOOST_FUNCTION_SCOPE_USING_DECLARATION_BREAKS_ADL)
+//
+// Figure out when Intel is emulating this gcc bug
+// (All Intel versions prior to 9.0.26, and versions
+// later than that if they are set up to emulate gcc 3.2
+// or earlier):
+//
+#  if ((__GNUC__ == 3) && (__GNUC_MINOR__ <= 2)) || (BOOST_INTEL < 900) || (__INTEL_COMPILER_BUILD_DATE < 20050912)
+#     define BOOST_FUNCTION_SCOPE_USING_DECLARATION_BREAKS_ADL
+#  endif
+#endif
+#if (defined(__GNUC__) && (__GNUC__ < 4)) || (defined(_WIN32) && (BOOST_INTEL_CXX_VERSION <= 1200)) || (BOOST_INTEL_CXX_VERSION <= 1200)
+// GCC or VC emulation:
+#define BOOST_NO_TWO_PHASE_NAME_LOOKUP
+#endif
+//
+// Verify that we have actually got BOOST_NO_INTRINSIC_WCHAR_T
+// set correctly, if we don't do this now, we will get errors later
+// in type_traits code among other things, getting this correct
+// for the Intel compiler is actually remarkably fragile and tricky:
+//
+#ifdef __cplusplus
+#if defined(BOOST_NO_INTRINSIC_WCHAR_T)
+#include <cwchar>
+template< typename T > struct assert_no_intrinsic_wchar_t;
+template<> struct assert_no_intrinsic_wchar_t<wchar_t> { typedef void type; };
+// if you see an error here then you need to unset BOOST_NO_INTRINSIC_WCHAR_T
+// where it is defined above:
+typedef assert_no_intrinsic_wchar_t<unsigned short>::type assert_no_intrinsic_wchar_t_;
+#else
+template< typename T > struct assert_intrinsic_wchar_t;
+template<> struct assert_intrinsic_wchar_t<wchar_t> {};
+// if you see an error here then define BOOST_NO_INTRINSIC_WCHAR_T on the command line:
+template<> struct assert_intrinsic_wchar_t<unsigned short> {};
+#endif
+#endif
+
+#if defined(_MSC_VER) && (_MSC_VER+0 >= 1000)
+#  if _MSC_VER >= 1200
+#     define BOOST_HAS_MS_INT64
+#  endif
+#  define BOOST_NO_SWPRINTF
+#  define BOOST_NO_TWO_PHASE_NAME_LOOKUP
+#elif defined(_WIN32)
+#  define BOOST_DISABLE_WIN32
+#endif
+
+// I checked version 6.0 build 020312Z, it implements the NRVO.
+// Correct this as you find out which version of the compiler
+// implemented the NRVO first.  (Daniel Frey)
+#if (BOOST_INTEL_CXX_VERSION >= 600)
+#  define BOOST_HAS_NRVO
+#endif
+
+// Branch prediction hints
+// I'm not sure 8.0 was the first version to support these builtins,
+// update the condition if the version is not accurate. (Andrey Semashev)
+#if defined(__GNUC__) && BOOST_INTEL_CXX_VERSION >= 800
+#define BOOST_LIKELY(x) __builtin_expect(x, 1)
+#define BOOST_UNLIKELY(x) __builtin_expect(x, 0)
+#endif
+
+// RTTI
+// __RTTI is the EDG macro
+// __INTEL_RTTI__ is the Intel macro
+// __GXX_RTTI is the g++ macro
+// _CPPRTTI is the MSVC++ macro
+#if !defined(__RTTI) && !defined(__INTEL_RTTI__) && !defined(__GXX_RTTI) && !defined(_CPPRTTI)
+
+#if !defined(BOOST_NO_RTTI)
+# define BOOST_NO_RTTI
+#endif
+
+// in MS mode, static typeid works even when RTTI is off
+#if !defined(_MSC_VER) && !defined(BOOST_NO_TYPEID)
+# define BOOST_NO_TYPEID
+#endif
+
+#endif
+
+//
+// versions check:
+// we don't support Intel prior to version 6.0:
+#if BOOST_INTEL_CXX_VERSION < 600
+#  error "Compiler not supported or configured - please reconfigure"
+#endif
+
+// Intel on MacOS requires
+#if defined(__APPLE__) && defined(__INTEL_COMPILER)
+#  define BOOST_NO_TWO_PHASE_NAME_LOOKUP
+#endif
+
+// Intel on Altix Itanium
+#if defined(__itanium__) && defined(__INTEL_COMPILER)
+#  define BOOST_NO_TWO_PHASE_NAME_LOOKUP
+#endif
+
+//
+// An attempt to value-initialize a pointer-to-member may trigger an
+// internal error on Intel <= 11.1 (last checked version), as was
+// reported by John Maddock, Intel support issue 589832, May 2010.
+// Moreover, according to test results from Huang-Vista-x86_32_intel,
+// intel-vc9-win-11.1 may leave a non-POD array uninitialized, in some
+// cases when it should be value-initialized.
+// (Niels Dekker, LKEB, May 2010)
+// Apparently Intel 12.1 (compiler version number 9999 !!) has the same issue (compiler regression).
+#if defined(__INTEL_COMPILER)
+#  if (__INTEL_COMPILER <= 1110) || (__INTEL_COMPILER == 9999) || (defined(_WIN32) && (__INTEL_COMPILER < 1600))
+#    define BOOST_NO_COMPLETE_VALUE_INITIALIZATION
+#  endif
+#endif
+
+//
+// Dynamic shared object (DSO) and dynamic-link library (DLL) support
+//
+#if defined(__GNUC__) && (__GNUC__ >= 4)
+#  define BOOST_SYMBOL_EXPORT __attribute__((visibility("default")))
+#  define BOOST_SYMBOL_IMPORT
+#  define BOOST_SYMBOL_VISIBLE __attribute__((visibility("default")))
+#endif
+
+// Type aliasing hint
+#if defined(__GNUC__) && (BOOST_INTEL_CXX_VERSION >= 1300)
+#  define BOOST_MAY_ALIAS __attribute__((__may_alias__))
+#endif
+
+//
+// C++0x features
+// For each feature we need to check both the Intel compiler version, 
+// and the version of MSVC or GCC that we are emulating.
+// See http://software.intel.com/en-us/articles/c0x-features-supported-by-intel-c-compiler/
+// for a list of which features were implemented in which Intel releases.
+//
+#if defined(BOOST_INTEL_STDCXX0X)
+// BOOST_NO_CXX11_CONSTEXPR:
+#if (BOOST_INTEL_CXX_VERSION >= 1500) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40600)) && !defined(_MSC_VER)
+// Available in earlier Intel versions, but fail our tests:
+#  undef BOOST_NO_CXX11_CONSTEXPR
+#endif
+// BOOST_NO_CXX11_NULLPTR:
+#if (BOOST_INTEL_CXX_VERSION >= 1210) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40600)) && (!defined(_MSC_VER) || (_MSC_VER >= 1600))
+#  undef BOOST_NO_CXX11_NULLPTR
+#endif
+// BOOST_NO_CXX11_TEMPLATE_ALIASES
+#if (BOOST_INTEL_CXX_VERSION >= 1210) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40700)) && (!defined(_MSC_VER) || (_MSC_FULL_VER >= 180020827))
+#  undef BOOST_NO_CXX11_TEMPLATE_ALIASES
+#endif
+
+// BOOST_NO_CXX11_DECLTYPE
+#if (BOOST_INTEL_CXX_VERSION >= 1200) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40300)) && (!defined(_MSC_VER) || (_MSC_VER >= 1600))
+#  undef BOOST_NO_CXX11_DECLTYPE
+#endif
+
+// BOOST_NO_CXX11_DECLTYPE_N3276
+#if (BOOST_INTEL_CXX_VERSION >= 1500) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40800)) && (!defined(_MSC_VER) || (_MSC_FULL_VER >= 180020827))
+#  undef BOOST_NO_CXX11_DECLTYPE_N3276
+#endif
+
+// BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#if (BOOST_INTEL_CXX_VERSION >= 1200) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40300)) && (!defined(_MSC_VER) || (_MSC_FULL_VER >= 180020827))
+#  undef BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#endif
+
+// BOOST_NO_CXX11_RVALUE_REFERENCES
+#if (BOOST_INTEL_CXX_VERSION >= 1300) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40300)) && (!defined(_MSC_VER) || (_MSC_VER >= 1600))
+// This is available from earlier Intel versions, but breaks Filesystem and other libraries:
+#  undef BOOST_NO_CXX11_RVALUE_REFERENCES
+#endif
+
+// BOOST_NO_CXX11_STATIC_ASSERT
+#if (BOOST_INTEL_CXX_VERSION >= 1110) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40300)) && (!defined(_MSC_VER) || (_MSC_VER >= 1600))
+#  undef BOOST_NO_CXX11_STATIC_ASSERT
+#endif
+
+// BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#if (BOOST_INTEL_CXX_VERSION >= 1200) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40400)) && (!defined(_MSC_VER) || (_MSC_FULL_VER >= 180020827))
+#  undef BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#endif
+
+// BOOST_NO_CXX11_VARIADIC_MACROS
+#if (BOOST_INTEL_CXX_VERSION >= 1200) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40200)) && (!defined(_MSC_VER) || (_MSC_VER >= 1400))
+#  undef BOOST_NO_CXX11_VARIADIC_MACROS
+#endif
+
+// BOOST_NO_CXX11_AUTO_DECLARATIONS
+#if (BOOST_INTEL_CXX_VERSION >= 1200) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40400)) && (!defined(_MSC_VER) || (_MSC_VER >= 1600))
+#  undef BOOST_NO_CXX11_AUTO_DECLARATIONS
+#endif
+
+// BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
+#if (BOOST_INTEL_CXX_VERSION >= 1200) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40400)) && (!defined(_MSC_VER) || (_MSC_VER >= 1600))
+#  undef BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
+#endif
+
+// BOOST_NO_CXX11_CHAR16_T
+#if (BOOST_INTEL_CXX_VERSION >= 1400) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40400)) && (!defined(_MSC_VER) || (_MSC_VER >= 9999))
+#  undef BOOST_NO_CXX11_CHAR16_T
+#endif
+
+// BOOST_NO_CXX11_CHAR32_T
+#if (BOOST_INTEL_CXX_VERSION >= 1400) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40400)) && (!defined(_MSC_VER) || (_MSC_VER >= 9999))
+#  undef BOOST_NO_CXX11_CHAR32_T
+#endif
+
+// BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#if (BOOST_INTEL_CXX_VERSION >= 1200) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40400)) && (!defined(_MSC_VER) || (_MSC_FULL_VER >= 180020827))
+#  undef BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#endif
+
+// BOOST_NO_CXX11_DELETED_FUNCTIONS
+#if (BOOST_INTEL_CXX_VERSION >= 1200) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40400)) && (!defined(_MSC_VER) || (_MSC_FULL_VER >= 180020827))
+#  undef BOOST_NO_CXX11_DELETED_FUNCTIONS
+#endif
+
+// BOOST_NO_CXX11_HDR_INITIALIZER_LIST
+#if (BOOST_INTEL_CXX_VERSION >= 1400) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40400)) && (!defined(_MSC_VER) || (_MSC_VER >= 1700))
+#  undef BOOST_NO_CXX11_HDR_INITIALIZER_LIST
+#endif
+
+// BOOST_NO_CXX11_SCOPED_ENUMS
+#if (BOOST_INTEL_CXX_VERSION >= 1400) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40501)) && (!defined(_MSC_VER) || (_MSC_VER >= 1700))
+// This is available but broken in earlier Intel releases.
+#  undef BOOST_NO_CXX11_SCOPED_ENUMS
+#endif
+
+// BOOST_NO_SFINAE_EXPR
+#if (BOOST_INTEL_CXX_VERSION >= 1200) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40500)) && (!defined(_MSC_VER) || (_MSC_VER >= 9999))
+#  undef BOOST_NO_SFINAE_EXPR
+#endif
+
+// BOOST_NO_CXX11_SFINAE_EXPR
+#if (BOOST_INTEL_CXX_VERSION >= 1500) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40800)) && !defined(_MSC_VER)
+#  undef BOOST_NO_CXX11_SFINAE_EXPR
+#endif
+
+// BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+#if (BOOST_INTEL_CXX_VERSION >= 1500) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40500)) && (!defined(_MSC_VER) || (_MSC_FULL_VER >= 180020827))
+// This is available in earlier Intel releases, but breaks Multiprecision:
+#  undef BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+#endif
+
+// BOOST_NO_CXX11_LAMBDAS
+#if (BOOST_INTEL_CXX_VERSION >= 1200) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40500)) && (!defined(_MSC_VER) || (_MSC_VER >= 1600))
+#  undef BOOST_NO_CXX11_LAMBDAS
+#endif
+
+// BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#if (BOOST_INTEL_CXX_VERSION >= 1200) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40500))
+#  undef BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#endif
+
+// BOOST_NO_CXX11_RANGE_BASED_FOR
+#if (BOOST_INTEL_CXX_VERSION >= 1400) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40600)) && (!defined(_MSC_VER) || (_MSC_VER >= 1700))
+#  undef BOOST_NO_CXX11_RANGE_BASED_FOR
+#endif
+
+// BOOST_NO_CXX11_RAW_LITERALS
+#if (BOOST_INTEL_CXX_VERSION >= 1400) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40500)) && (!defined(_MSC_VER) || (_MSC_FULL_VER >= 180020827))
+#  undef BOOST_NO_CXX11_RAW_LITERALS
+#endif
+
+// BOOST_NO_CXX11_UNICODE_LITERALS
+#if (BOOST_INTEL_CXX_VERSION >= 1400) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40500)) && (!defined(_MSC_VER) || (_MSC_VER >= 9999))
+#  undef BOOST_NO_CXX11_UNICODE_LITERALS
+#endif
+
+// BOOST_NO_CXX11_NOEXCEPT
+#if (BOOST_INTEL_CXX_VERSION >= 1500) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40600)) && (!defined(_MSC_VER) || (_MSC_VER >= 9999))
+// Available in earlier Intel release, but generates errors when used with 
+// conditional exception specifications, for example in multiprecision:
+#  undef BOOST_NO_CXX11_NOEXCEPT
+#endif
+
+// BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#if (BOOST_INTEL_CXX_VERSION >= 1400) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40600)) && (!defined(_MSC_VER) || (_MSC_VER >= 9999))
+#  undef BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#endif
+
+// BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#if (BOOST_INTEL_CXX_VERSION >= 1500) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40700)) && (!defined(_MSC_VER) || (_MSC_FULL_VER >= 190021730))
+#  undef BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#endif
+
+// BOOST_NO_CXX11_ALIGNAS
+#if (BOOST_INTEL_CXX_VERSION >= 1500) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40800)) && (!defined(_MSC_VER) || (_MSC_FULL_VER >= 190021730))
+#  undef BOOST_NO_CXX11_ALIGNAS
+#endif
+
+// BOOST_NO_CXX11_TRAILING_RESULT_TYPES
+#if (BOOST_INTEL_CXX_VERSION >= 1200) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40400)) && (!defined(_MSC_VER) || (_MSC_FULL_VER >= 180020827))
+#  undef BOOST_NO_CXX11_TRAILING_RESULT_TYPES
+#endif
+
+// BOOST_NO_CXX11_INLINE_NAMESPACES
+#if (BOOST_INTEL_CXX_VERSION >= 1400) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40400)) && (!defined(_MSC_VER) || (_MSC_FULL_VER >= 190021730))
+#  undef BOOST_NO_CXX11_INLINE_NAMESPACES
+#endif
+
+// BOOST_NO_CXX11_REF_QUALIFIERS
+#if (BOOST_INTEL_CXX_VERSION >= 1400) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40800)) && (!defined(_MSC_VER) || (_MSC_FULL_VER >= 190021730))
+#  undef BOOST_NO_CXX11_REF_QUALIFIERS
+#endif
+
+// BOOST_NO_CXX11_FINAL
+#if (BOOST_INTEL_CXX_VERSION >= 1400) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 40700)) && (!defined(_MSC_VER) || (_MSC_VER >= 1700))
+#  undef BOOST_NO_CXX11_FINAL
+#endif
+
+// BOOST_NO_CXX11_UNRESTRICTED_UNION
+#if (BOOST_INTEL_CXX_VERSION >= 1400) && (!defined(BOOST_INTEL_GCC_VERSION) || (BOOST_INTEL_GCC_VERSION >= 50100)) && (!defined(_MSC_VER))
+#  undef BOOST_NO_CXX11_UNRESTRICTED_UNION
+#endif
+
+#endif // defined(BOOST_INTEL_STDCXX0X)
+
+//
+// Broken in all versions up to 15:
+#define BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS
+
+#if defined(BOOST_INTEL_STDCXX0X) && (BOOST_INTEL_CXX_VERSION <= 1310)
+#  define BOOST_NO_CXX11_HDR_FUTURE
+#  define BOOST_NO_CXX11_HDR_INITIALIZER_LIST
+#endif
+
+#if defined(BOOST_INTEL_STDCXX0X) && (BOOST_INTEL_CXX_VERSION == 1400)
+// A regression in Intel's compiler means that <tuple> seems to be broken in this release as well as <future> :
+#  define BOOST_NO_CXX11_HDR_FUTURE
+#  define BOOST_NO_CXX11_HDR_TUPLE
+#endif
+
+#if (BOOST_INTEL_CXX_VERSION < 1200)
+//
+// fenv.h appears not to work with Intel prior to 12.0:
+//
+#  define BOOST_NO_FENV_H
+#endif
+
+// Intel 13.10 fails to access defaulted functions of a base class declared in private or protected sections,
+// producing the following errors:
+// error #453: protected function "..." (declared at ...") is not accessible through a "..." pointer or object
+#if (BOOST_INTEL_CXX_VERSION <= 1310)
+#  define BOOST_NO_CXX11_NON_PUBLIC_DEFAULTED_FUNCTIONS
+#endif
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1600)
+#  define BOOST_HAS_STDINT_H
+#endif
+
+#if defined(__CUDACC__)
+#  if defined(BOOST_GCC_CXX11)
+#    define BOOST_NVCC_CXX11
+#  else
+#    define BOOST_NVCC_CXX03
+#  endif
+#endif
+
+#if defined(__LP64__) && defined(__GNUC__) && (BOOST_INTEL_CXX_VERSION >= 1310) && !defined(BOOST_NVCC_CXX03)
+#  define BOOST_HAS_INT128
+#endif
+
+#endif // defined(__INTEL_COMPILER) && (__INTEL_COMPILER >= 1500) && (defined(_MSC_VER) || defined(__GNUC__))
+//
+// last known and checked version:
+#if (BOOST_INTEL_CXX_VERSION > 1700)
+#  if defined(BOOST_ASSERT_CONFIG)
+#     error "Boost.Config is older than your compiler - please check for an updated Boost release."
+#  elif defined(_MSC_VER)
+//
+//      We don't emit this warning any more, since we have so few
+//      defect macros set anyway (just the one).
+//
+//#     pragma message("boost: Unknown compiler version - please run the configure tests and report the results")
+#  endif
+#endif
+
--- a/oss/boost/boost_1_73_0/boost/config/compiler/kai.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/kai.hpp
@@ -0,0 +1,33 @@
+//  (C) Copyright John Maddock 2001. 
+//  (C) Copyright David Abrahams 2002. 
+//  (C) Copyright Aleksey Gurtovoy 2002. 
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+//  Kai C++ compiler setup:
+
+#include <boost/config/compiler/common_edg.hpp>
+
+#   if (__KCC_VERSION <= 4001) || !defined(BOOST_STRICT_CONFIG)
+      // at least on Sun, the contents of <cwchar> is not in namespace std
+#     define BOOST_NO_STDC_NAMESPACE
+#   endif
+
+// see also common_edg.hpp which needs a special check for __KCC
+# if !defined(_EXCEPTIONS) && !defined(BOOST_NO_EXCEPTIONS)
+#     define BOOST_NO_EXCEPTIONS
+# endif
+
+//
+// last known and checked version is 4001:
+#if (__KCC_VERSION > 4001)
+#  if defined(BOOST_ASSERT_CONFIG)
+#     error "boost: Unknown compiler version - please run the configure tests and report the results"
+#  endif
+#endif
+
+
+
--- a/oss/boost/boost_1_73_0/boost/config/compiler/metrowerks.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/metrowerks.hpp
@@ -0,0 +1,196 @@
+//  (C) Copyright John Maddock 2001.
+//  (C) Copyright Darin Adler 2001.
+//  (C) Copyright Peter Dimov 2001.
+//  (C) Copyright David Abrahams 2001 - 2002.
+//  (C) Copyright Beman Dawes 2001 - 2003.
+//  (C) Copyright Stefan Slapeta 2004.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+//  Metrowerks C++ compiler setup:
+
+// locale support is disabled when linking with the dynamic runtime
+#   ifdef _MSL_NO_LOCALE
+#     define BOOST_NO_STD_LOCALE
+#   endif
+
+#   if __MWERKS__ <= 0x2301  // 5.3
+#     define BOOST_NO_FUNCTION_TEMPLATE_ORDERING
+#     define BOOST_NO_POINTER_TO_MEMBER_CONST
+#     define BOOST_NO_DEPENDENT_TYPES_IN_TEMPLATE_VALUE_PARAMETERS
+#     define BOOST_NO_MEMBER_TEMPLATE_KEYWORD
+#   endif
+
+#   if __MWERKS__ <= 0x2401  // 6.2
+//#     define BOOST_NO_FUNCTION_TEMPLATE_ORDERING
+#   endif
+
+#   if(__MWERKS__ <= 0x2407)  // 7.x
+#     define BOOST_NO_MEMBER_FUNCTION_SPECIALIZATIONS
+#     define BOOST_NO_UNREACHABLE_RETURN_DETECTION
+#   endif
+
+#   if(__MWERKS__ <= 0x3003)  // 8.x
+#     define BOOST_NO_SFINAE
+#    endif
+
+// the "|| !defined(BOOST_STRICT_CONFIG)" part should apply to the last
+// tested version *only*:
+#   if(__MWERKS__ <= 0x3207) || !defined(BOOST_STRICT_CONFIG) // 9.6
+#     define BOOST_NO_MEMBER_TEMPLATE_FRIENDS
+#     define BOOST_NO_IS_ABSTRACT
+#    endif
+
+#if !__option(wchar_type)
+#   define BOOST_NO_INTRINSIC_WCHAR_T
+#endif
+
+#if !__option(exceptions) && !defined(BOOST_NO_EXCEPTIONS)
+#   define BOOST_NO_EXCEPTIONS
+#endif
+
+#if (__INTEL__ && _WIN32) || (__POWERPC__ && macintosh)
+#   if __MWERKS__ == 0x3000
+#     define BOOST_COMPILER_VERSION 8.0
+#   elif __MWERKS__ == 0x3001
+#     define BOOST_COMPILER_VERSION 8.1
+#   elif __MWERKS__ == 0x3002
+#     define BOOST_COMPILER_VERSION 8.2
+#   elif __MWERKS__ == 0x3003
+#     define BOOST_COMPILER_VERSION 8.3
+#   elif __MWERKS__ == 0x3200
+#     define BOOST_COMPILER_VERSION 9.0
+#   elif __MWERKS__ == 0x3201
+#     define BOOST_COMPILER_VERSION 9.1
+#   elif __MWERKS__ == 0x3202
+#     define BOOST_COMPILER_VERSION 9.2
+#   elif __MWERKS__ == 0x3204
+#     define BOOST_COMPILER_VERSION 9.3
+#   elif __MWERKS__ == 0x3205
+#     define BOOST_COMPILER_VERSION 9.4
+#   elif __MWERKS__ == 0x3206
+#     define BOOST_COMPILER_VERSION 9.5
+#   elif __MWERKS__ == 0x3207
+#     define BOOST_COMPILER_VERSION 9.6
+#   else
+#     define BOOST_COMPILER_VERSION __MWERKS__
+#   endif
+#else
+#  define BOOST_COMPILER_VERSION __MWERKS__
+#endif
+
+//
+// C++0x features
+//
+//   See boost\config\suffix.hpp for BOOST_NO_LONG_LONG
+//
+#if __MWERKS__ > 0x3206 && __option(rvalue_refs)
+#  define BOOST_HAS_RVALUE_REFS
+#else
+#  define BOOST_NO_CXX11_RVALUE_REFERENCES
+#endif
+#define BOOST_NO_CXX11_AUTO_DECLARATIONS
+#define BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
+#define BOOST_NO_CXX11_CHAR16_T
+#define BOOST_NO_CXX11_CHAR32_T
+#define BOOST_NO_CXX11_CONSTEXPR
+#define BOOST_NO_CXX11_DECLTYPE
+#define BOOST_NO_CXX11_DECLTYPE_N3276
+#define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#define BOOST_NO_CXX11_DELETED_FUNCTIONS
+#define BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+#define BOOST_NO_CXX11_EXTERN_TEMPLATE
+#define BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#define BOOST_NO_CXX11_HDR_INITIALIZER_LIST
+#define BOOST_NO_CXX11_LAMBDAS
+#define BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#define BOOST_NO_CXX11_NOEXCEPT
+#define BOOST_NO_CXX11_NULLPTR
+#define BOOST_NO_CXX11_RANGE_BASED_FOR
+#define BOOST_NO_CXX11_RAW_LITERALS
+#define BOOST_NO_CXX11_SCOPED_ENUMS
+#define BOOST_NO_SFINAE_EXPR
+#define BOOST_NO_CXX11_SFINAE_EXPR
+#define BOOST_NO_CXX11_STATIC_ASSERT
+#define BOOST_NO_CXX11_TEMPLATE_ALIASES
+#define BOOST_NO_CXX11_UNICODE_LITERALS
+#define BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#define BOOST_NO_CXX11_VARIADIC_MACROS
+#define BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#define BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#define BOOST_NO_CXX11_ALIGNAS
+#define BOOST_NO_CXX11_TRAILING_RESULT_TYPES
+#define BOOST_NO_CXX11_INLINE_NAMESPACES
+#define BOOST_NO_CXX11_REF_QUALIFIERS
+#define BOOST_NO_CXX11_FINAL
+#define BOOST_NO_CXX11_THREAD_LOCAL
+#define BOOST_NO_CXX11_UNRESTRICTED_UNION
+
+// C++ 14:
+#if !defined(__cpp_aggregate_nsdmi) || (__cpp_aggregate_nsdmi < 201304)
+#  define BOOST_NO_CXX14_AGGREGATE_NSDMI
+#endif
+#if !defined(__cpp_binary_literals) || (__cpp_binary_literals < 201304)
+#  define BOOST_NO_CXX14_BINARY_LITERALS
+#endif
+#if !defined(__cpp_constexpr) || (__cpp_constexpr < 201304)
+#  define BOOST_NO_CXX14_CONSTEXPR
+#endif
+#if !defined(__cpp_decltype_auto) || (__cpp_decltype_auto < 201304)
+#  define BOOST_NO_CXX14_DECLTYPE_AUTO
+#endif
+#if (__cplusplus < 201304) // There's no SD6 check for this....
+#  define BOOST_NO_CXX14_DIGIT_SEPARATORS
+#endif
+#if !defined(__cpp_generic_lambdas) || (__cpp_generic_lambdas < 201304)
+#  define BOOST_NO_CXX14_GENERIC_LAMBDAS
+#endif
+#if !defined(__cpp_init_captures) || (__cpp_init_captures < 201304)
+#  define BOOST_NO_CXX14_INITIALIZED_LAMBDA_CAPTURES
+#endif
+#if !defined(__cpp_return_type_deduction) || (__cpp_return_type_deduction < 201304)
+#  define BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION
+#endif
+#if !defined(__cpp_variable_templates) || (__cpp_variable_templates < 201304)
+#  define BOOST_NO_CXX14_VARIABLE_TEMPLATES
+#endif
+
+// C++17
+#if !defined(__cpp_structured_bindings) || (__cpp_structured_bindings < 201606)
+#  define BOOST_NO_CXX17_STRUCTURED_BINDINGS
+#endif
+#if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606)
+#  define BOOST_NO_CXX17_INLINE_VARIABLES
+#endif
+#if !defined(__cpp_fold_expressions) || (__cpp_fold_expressions < 201603)
+#  define BOOST_NO_CXX17_FOLD_EXPRESSIONS
+#endif
+#if !defined(__cpp_if_constexpr) || (__cpp_if_constexpr < 201606)
+#  define BOOST_NO_CXX17_IF_CONSTEXPR
+#endif
+
+#define BOOST_COMPILER "Metrowerks CodeWarrior C++ version " BOOST_STRINGIZE(BOOST_COMPILER_VERSION)
+
+//
+// versions check:
+// we don't support Metrowerks prior to version 5.3:
+#if __MWERKS__ < 0x2301
+#  error "Compiler not supported or configured - please reconfigure"
+#endif
+//
+// last known and checked version:
+#if (__MWERKS__ > 0x3205)
+#  if defined(BOOST_ASSERT_CONFIG)
+#     error "boost: Unknown compiler version - please run the configure tests and report the results"
+#  endif
+#endif
+
+
+
+
+
+
+
--- a/oss/boost/boost_1_73_0/boost/config/compiler/mpw.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/mpw.hpp
@@ -0,0 +1,138 @@
+//  (C) Copyright John Maddock 2001 - 2002.
+//  (C) Copyright Aleksey Gurtovoy 2002.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+//  MPW C++ compilers setup:
+
+#   if    defined(__SC__)
+#     define BOOST_COMPILER "MPW SCpp version " BOOST_STRINGIZE(__SC__)
+#   elif defined(__MRC__)
+#     define BOOST_COMPILER "MPW MrCpp version " BOOST_STRINGIZE(__MRC__)
+#   else
+#     error "Using MPW compiler configuration by mistake.  Please update."
+#   endif
+
+//
+// MPW 8.90:
+//
+#if (MPW_CPLUS <= 0x890) || !defined(BOOST_STRICT_CONFIG)
+#  define BOOST_NO_CV_SPECIALIZATIONS
+#  define BOOST_NO_DEPENDENT_NESTED_DERIVATIONS
+#  define BOOST_NO_DEPENDENT_TYPES_IN_TEMPLATE_VALUE_PARAMETERS
+#  define BOOST_NO_INCLASS_MEMBER_INITIALIZATION
+#  define BOOST_NO_INTRINSIC_WCHAR_T
+#  define BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+#  define BOOST_NO_USING_TEMPLATE
+
+#  define BOOST_NO_CWCHAR
+#  define BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
+
+#  define BOOST_NO_STD_ALLOCATOR /* actually a bug with const reference overloading */
+
+#endif
+
+//
+// C++0x features
+//
+//   See boost\config\suffix.hpp for BOOST_NO_LONG_LONG
+//
+#define BOOST_NO_CXX11_AUTO_DECLARATIONS
+#define BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
+#define BOOST_NO_CXX11_CHAR16_T
+#define BOOST_NO_CXX11_CHAR32_T
+#define BOOST_NO_CXX11_CONSTEXPR
+#define BOOST_NO_CXX11_DECLTYPE
+#define BOOST_NO_CXX11_DECLTYPE_N3276
+#define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#define BOOST_NO_CXX11_DELETED_FUNCTIONS
+#define BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+#define BOOST_NO_CXX11_EXTERN_TEMPLATE
+#define BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#define BOOST_NO_CXX11_HDR_INITIALIZER_LIST
+#define BOOST_NO_CXX11_LAMBDAS
+#define BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#define BOOST_NO_CXX11_NOEXCEPT
+#define BOOST_NO_CXX11_NULLPTR
+#define BOOST_NO_CXX11_RANGE_BASED_FOR
+#define BOOST_NO_CXX11_RAW_LITERALS
+#define BOOST_NO_CXX11_RVALUE_REFERENCES
+#define BOOST_NO_CXX11_SCOPED_ENUMS
+#define BOOST_NO_SFINAE_EXPR
+#define BOOST_NO_CXX11_SFINAE_EXPR
+#define BOOST_NO_CXX11_STATIC_ASSERT
+#define BOOST_NO_CXX11_TEMPLATE_ALIASES
+#define BOOST_NO_CXX11_UNICODE_LITERALS
+#define BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#define BOOST_NO_CXX11_VARIADIC_MACROS
+#define BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#define BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#define BOOST_NO_CXX11_ALIGNAS
+#define BOOST_NO_CXX11_TRAILING_RESULT_TYPES
+#define BOOST_NO_CXX11_INLINE_NAMESPACES
+#define BOOST_NO_CXX11_REF_QUALIFIERS
+#define BOOST_NO_CXX11_FINAL
+#define BOOST_NO_CXX11_THREAD_LOCAL
+#define BOOST_NO_CXX11_UNRESTRICTED_UNION
+
+// C++ 14:
+#if !defined(__cpp_aggregate_nsdmi) || (__cpp_aggregate_nsdmi < 201304)
+#  define BOOST_NO_CXX14_AGGREGATE_NSDMI
+#endif
+#if !defined(__cpp_binary_literals) || (__cpp_binary_literals < 201304)
+#  define BOOST_NO_CXX14_BINARY_LITERALS
+#endif
+#if !defined(__cpp_constexpr) || (__cpp_constexpr < 201304)
+#  define BOOST_NO_CXX14_CONSTEXPR
+#endif
+#if !defined(__cpp_decltype_auto) || (__cpp_decltype_auto < 201304)
+#  define BOOST_NO_CXX14_DECLTYPE_AUTO
+#endif
+#if (__cplusplus < 201304) // There's no SD6 check for this....
+#  define BOOST_NO_CXX14_DIGIT_SEPARATORS
+#endif
+#if !defined(__cpp_generic_lambdas) || (__cpp_generic_lambdas < 201304)
+#  define BOOST_NO_CXX14_GENERIC_LAMBDAS
+#endif
+#if !defined(__cpp_init_captures) || (__cpp_init_captures < 201304)
+#  define BOOST_NO_CXX14_INITIALIZED_LAMBDA_CAPTURES
+#endif
+#if !defined(__cpp_return_type_deduction) || (__cpp_return_type_deduction < 201304)
+#  define BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION
+#endif
+#if !defined(__cpp_variable_templates) || (__cpp_variable_templates < 201304)
+#  define BOOST_NO_CXX14_VARIABLE_TEMPLATES
+#endif
+
+// C++17
+#if !defined(__cpp_structured_bindings) || (__cpp_structured_bindings < 201606)
+#  define BOOST_NO_CXX17_STRUCTURED_BINDINGS
+#endif
+#if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606)
+#  define BOOST_NO_CXX17_INLINE_VARIABLES
+#endif
+#if !defined(__cpp_fold_expressions) || (__cpp_fold_expressions < 201603)
+#  define BOOST_NO_CXX17_FOLD_EXPRESSIONS
+#endif
+#if !defined(__cpp_if_constexpr) || (__cpp_if_constexpr < 201606)
+#  define BOOST_NO_CXX17_IF_CONSTEXPR
+#endif
+
+//
+// versions check:
+// we don't support MPW prior to version 8.9:
+#if MPW_CPLUS < 0x890
+#  error "Compiler not supported or configured - please reconfigure"
+#endif
+//
+// last known and checked version is 0x890:
+#if (MPW_CPLUS > 0x890)
+#  if defined(BOOST_ASSERT_CONFIG)
+#     error "boost: Unknown compiler version - please run the configure tests and report the results"
+#  endif
+#endif
+
+
--- a/oss/boost/boost_1_73_0/boost/config/compiler/nvcc.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/nvcc.hpp
@@ -0,0 +1,58 @@
+//  (C) Copyright Eric Jourdanneau, Joel Falcou 2010
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+//  NVIDIA CUDA C++ compiler setup
+
+#ifndef BOOST_COMPILER
+#  define BOOST_COMPILER "NVIDIA CUDA C++ Compiler"
+#endif
+
+#if defined(__CUDACC_VER_MAJOR__) && defined(__CUDACC_VER_MINOR__) && defined(__CUDACC_VER_BUILD__)
+#  define BOOST_CUDA_VERSION (__CUDACC_VER_MAJOR__ * 1000000 + __CUDACC_VER_MINOR__ * 10000 + __CUDACC_VER_BUILD__)
+#else
+// We don't really know what the CUDA version is, but it's definitely before 7.5:
+#  define BOOST_CUDA_VERSION 7000000
+#endif
+
+// NVIDIA Specific support
+// BOOST_GPU_ENABLED : Flag a function or a method as being enabled on the host and device
+#define BOOST_GPU_ENABLED __host__ __device__
+
+// A bug in version 7.0 of CUDA prevents use of variadic templates in some occasions
+// https://svn.boost.org/trac/boost/ticket/11897
+// This is fixed in 7.5. As the following version macro was introduced in 7.5 an existance
+// check is enough to detect versions < 7.5
+#if BOOST_CUDA_VERSION < 7050000
+#   define BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#endif
+// The same bug is back again in 8.0:
+#if (BOOST_CUDA_VERSION > 8000000) && (BOOST_CUDA_VERSION < 8010000)
+#   define BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#endif
+// CUDA (8.0) has no constexpr support in msvc mode:
+#if defined(_MSC_VER) && (BOOST_CUDA_VERSION < 9000000)
+#  define BOOST_NO_CXX11_CONSTEXPR
+#endif
+
+#ifdef __CUDACC__
+//
+// When compiing .cu files, there's a bunch of stuff that doesn't work with msvc:
+//
+#if defined(_MSC_VER)
+#  define BOOST_NO_CXX14_DIGIT_SEPARATORS
+#  define BOOST_NO_CXX11_UNICODE_LITERALS
+#endif
+//
+// And this one effects the NVCC front end,
+// See https://svn.boost.org/trac/boost/ticket/13049
+//
+#if (BOOST_CUDA_VERSION >= 8000000) && (BOOST_CUDA_VERSION < 8010000)
+#  define BOOST_NO_CXX11_NOEXCEPT
+#endif
+
+#endif
+
--- a/oss/boost/boost_1_73_0/boost/config/compiler/pathscale.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/pathscale.hpp
@@ -0,0 +1,136 @@
+//  (C) Copyright Bryce Lelbach 2011
+
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+// PathScale EKOPath C++ Compiler
+
+#ifndef BOOST_COMPILER
+#  define BOOST_COMPILER "PathScale EKOPath C++ Compiler version " __PATHSCALE__
+#endif
+
+#if __PATHCC__ >= 6 
+// PathCC is based on clang, and supports the __has_*() builtins used 
+// to detect features in clang.hpp. Since the clang toolset is much 
+// better maintained, it is more convenient to reuse its definitions. 
+#  include "boost/config/compiler/clang.hpp"
+#elif __PATHCC__ >= 4 
+#  define BOOST_MSVC6_MEMBER_TEMPLATES
+#  define BOOST_HAS_UNISTD_H
+#  define BOOST_HAS_STDINT_H
+#  define BOOST_HAS_SIGACTION
+#  define BOOST_HAS_SCHED_YIELD
+#  define BOOST_HAS_THREADS
+#  define BOOST_HAS_PTHREADS
+#  define BOOST_HAS_PTHREAD_YIELD
+#  define BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE
+#  define BOOST_HAS_PARTIAL_STD_ALLOCATOR
+#  define BOOST_HAS_NRVO
+#  define BOOST_HAS_NL_TYPES_H
+#  define BOOST_HAS_NANOSLEEP
+#  define BOOST_HAS_LONG_LONG
+#  define BOOST_HAS_LOG1P
+#  define BOOST_HAS_GETTIMEOFDAY
+#  define BOOST_HAS_EXPM1
+#  define BOOST_HAS_DIRENT_H
+#  define BOOST_HAS_CLOCK_GETTIME
+#  define BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#  define BOOST_NO_CXX11_UNICODE_LITERALS
+#  define BOOST_NO_CXX11_TEMPLATE_ALIASES
+#  define BOOST_NO_CXX11_STATIC_ASSERT
+#  define BOOST_NO_SFINAE_EXPR
+#  define BOOST_NO_CXX11_SFINAE_EXPR
+#  define BOOST_NO_CXX11_SCOPED_ENUMS
+#  define BOOST_NO_CXX11_RVALUE_REFERENCES
+#  define BOOST_NO_CXX11_RANGE_BASED_FOR
+#  define BOOST_NO_CXX11_RAW_LITERALS
+#  define BOOST_NO_CXX11_NULLPTR
+#  define BOOST_NO_CXX11_NUMERIC_LIMITS
+#  define BOOST_NO_CXX11_NOEXCEPT
+#  define BOOST_NO_CXX11_LAMBDAS
+#  define BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#  define BOOST_NO_MS_INT64_NUMERIC_LIMITS
+#  define BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#  define BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+#  define BOOST_NO_CXX11_DELETED_FUNCTIONS
+#  define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#  define BOOST_NO_CXX11_DECLTYPE
+#  define BOOST_NO_CXX11_DECLTYPE_N3276
+#  define BOOST_NO_CXX11_CONSTEXPR
+#  define BOOST_NO_COMPLETE_VALUE_INITIALIZATION
+#  define BOOST_NO_CXX11_CHAR32_T
+#  define BOOST_NO_CXX11_CHAR16_T
+#  define BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
+#  define BOOST_NO_CXX11_AUTO_DECLARATIONS
+#  define BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#  define BOOST_NO_CXX11_HDR_UNORDERED_SET
+#  define BOOST_NO_CXX11_HDR_UNORDERED_MAP
+#  define BOOST_NO_CXX11_HDR_TYPEINDEX
+#  define BOOST_NO_CXX11_HDR_TUPLE
+#  define BOOST_NO_CXX11_HDR_THREAD
+#  define BOOST_NO_CXX11_HDR_SYSTEM_ERROR
+#  define BOOST_NO_CXX11_HDR_REGEX
+#  define BOOST_NO_CXX11_HDR_RATIO
+#  define BOOST_NO_CXX11_HDR_RANDOM
+#  define BOOST_NO_CXX11_HDR_MUTEX
+#  define BOOST_NO_CXX11_HDR_INITIALIZER_LIST
+#  define BOOST_NO_CXX11_HDR_FUTURE
+#  define BOOST_NO_CXX11_HDR_FORWARD_LIST
+#  define BOOST_NO_CXX11_HDR_CONDITION_VARIABLE
+#  define BOOST_NO_CXX11_HDR_CODECVT
+#  define BOOST_NO_CXX11_HDR_CHRONO
+#  define BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#  define BOOST_NO_CXX11_ALIGNAS
+#  define BOOST_NO_CXX11_TRAILING_RESULT_TYPES
+#  define BOOST_NO_CXX11_INLINE_NAMESPACES
+#  define BOOST_NO_CXX11_REF_QUALIFIERS
+#  define BOOST_NO_CXX11_FINAL
+#  define BOOST_NO_CXX11_THREAD_LOCAL
+#  define BOOST_NO_CXX11_UNRESTRICTED_UNION
+
+// C++ 14:
+#if !defined(__cpp_aggregate_nsdmi) || (__cpp_aggregate_nsdmi < 201304)
+#  define BOOST_NO_CXX14_AGGREGATE_NSDMI
+#endif
+#if !defined(__cpp_binary_literals) || (__cpp_binary_literals < 201304)
+#  define BOOST_NO_CXX14_BINARY_LITERALS
+#endif
+#if !defined(__cpp_constexpr) || (__cpp_constexpr < 201304)
+#  define BOOST_NO_CXX14_CONSTEXPR
+#endif
+#if !defined(__cpp_decltype_auto) || (__cpp_decltype_auto < 201304)
+#  define BOOST_NO_CXX14_DECLTYPE_AUTO
+#endif
+#if (__cplusplus < 201304) // There's no SD6 check for this....
+#  define BOOST_NO_CXX14_DIGIT_SEPARATORS
+#endif
+#if !defined(__cpp_generic_lambdas) || (__cpp_generic_lambdas < 201304)
+#  define BOOST_NO_CXX14_GENERIC_LAMBDAS
+#endif
+#if !defined(__cpp_init_captures) || (__cpp_init_captures < 201304)
+#  define BOOST_NO_CXX14_INITIALIZED_LAMBDA_CAPTURES
+#endif
+#if !defined(__cpp_return_type_deduction) || (__cpp_return_type_deduction < 201304)
+#  define BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION
+#endif
+#if !defined(__cpp_variable_templates) || (__cpp_variable_templates < 201304)
+#  define BOOST_NO_CXX14_VARIABLE_TEMPLATES
+#endif
+
+// C++17
+#if !defined(__cpp_structured_bindings) || (__cpp_structured_bindings < 201606)
+#  define BOOST_NO_CXX17_STRUCTURED_BINDINGS
+#endif
+#if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606)
+#  define BOOST_NO_CXX17_INLINE_VARIABLES
+#endif
+#if !defined(__cpp_fold_expressions) || (__cpp_fold_expressions < 201603)
+#  define BOOST_NO_CXX17_FOLD_EXPRESSIONS
+#endif
+#if !defined(__cpp_if_constexpr) || (__cpp_if_constexpr < 201606)
+#  define BOOST_NO_CXX17_IF_CONSTEXPR
+#endif
+#endif
--- a/oss/boost/boost_1_73_0/boost/config/compiler/pgi.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/pgi.hpp
@@ -0,0 +1,23 @@
+//  (C) Copyright Noel Belcourt 2007.
+//  Copyright 2017, NVIDIA CORPORATION.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+//  PGI C++ compiler setup:
+
+#define BOOST_COMPILER_VERSION __PGIC__##__PGIC_MINOR__
+#define BOOST_COMPILER "PGI compiler version " BOOST_STRINGIZE(BOOST_COMPILER_VERSION)
+
+// PGI is mostly GNU compatible.  So start with that.
+#include <boost/config/compiler/gcc.hpp>
+
+// Now adjust for things that are different.
+
+// __float128 is a typedef, not a distinct type.
+#undef BOOST_HAS_FLOAT128
+
+// __int128 is not supported.
+#undef BOOST_HAS_INT128
--- a/oss/boost/boost_1_73_0/boost/config/compiler/sgi_mipspro.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/sgi_mipspro.hpp
@@ -0,0 +1,29 @@
+//  (C) Copyright John Maddock 2001 - 2002. 
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+//  SGI C++ compiler setup:
+
+#define BOOST_COMPILER "SGI Irix compiler version " BOOST_STRINGIZE(_COMPILER_VERSION)
+
+#include <boost/config/compiler/common_edg.hpp>
+
+//
+// Threading support:
+// Turn this on unconditionally here, it will get turned off again later
+// if no threading API is detected.
+//
+#define BOOST_HAS_THREADS
+#define BOOST_NO_TWO_PHASE_NAME_LOOKUP
+
+#undef BOOST_NO_SWPRINTF
+#undef BOOST_DEDUCED_TYPENAME
+
+//
+// version check:
+// probably nothing to do here?
+
+
--- a/oss/boost/boost_1_73_0/boost/config/compiler/sunpro_cc.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/sunpro_cc.hpp
@@ -0,0 +1,214 @@
+//  (C) Copyright John Maddock 2001.
+//  (C) Copyright Jens Maurer 2001 - 2003.
+//  (C) Copyright Peter Dimov 2002.
+//  (C) Copyright Aleksey Gurtovoy 2002 - 2003.
+//  (C) Copyright David Abrahams 2002.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+//  Sun C++ compiler setup:
+
+#    if __SUNPRO_CC <= 0x500
+#      define BOOST_NO_MEMBER_TEMPLATES
+#      define BOOST_NO_FUNCTION_TEMPLATE_ORDERING
+#    endif
+
+#    if (__SUNPRO_CC <= 0x520)
+       //
+       // Sunpro 5.2 and earler:
+       //
+       // although sunpro 5.2 supports the syntax for
+       // inline initialization it often gets the value
+       // wrong, especially where the value is computed
+       // from other constants (J Maddock 6th May 2001)
+#      define BOOST_NO_INCLASS_MEMBER_INITIALIZATION
+
+       // Although sunpro 5.2 supports the syntax for
+       // partial specialization, it often seems to
+       // bind to the wrong specialization.  Better
+       // to disable it until suppport becomes more stable
+       // (J Maddock 6th May 2001).
+#      define BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+#    endif
+
+#    if (__SUNPRO_CC <= 0x530)
+       // Requesting debug info (-g) with Boost.Python results
+       // in an internal compiler error for "static const"
+       // initialized in-class.
+       //    >> Assertion:   (../links/dbg_cstabs.cc, line 611)
+       //         while processing ../test.cpp at line 0.
+       // (Jens Maurer according to Gottfried Ganssauge 04 Mar 2002)
+#      define BOOST_NO_INCLASS_MEMBER_INITIALIZATION
+
+       // SunPro 5.3 has better support for partial specialization,
+       // but breaks when compiling std::less<shared_ptr<T> >
+       // (Jens Maurer 4 Nov 2001).
+
+       // std::less specialization fixed as reported by George
+       // Heintzelman; partial specialization re-enabled
+       // (Peter Dimov 17 Jan 2002)
+
+//#      define BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+
+       // integral constant expressions with 64 bit numbers fail
+#      define BOOST_NO_INTEGRAL_INT64_T
+#    endif
+
+#    if (__SUNPRO_CC < 0x570)
+#      define BOOST_NO_TEMPLATE_TEMPLATES
+       // see http://lists.boost.org/MailArchives/boost/msg47184.php
+       // and http://lists.boost.org/MailArchives/boost/msg47220.php
+#      define BOOST_NO_INCLASS_MEMBER_INITIALIZATION
+#      define BOOST_NO_SFINAE
+#      define BOOST_NO_ARRAY_TYPE_SPECIALIZATIONS
+#    endif
+#    if (__SUNPRO_CC <= 0x580)
+#      define BOOST_NO_IS_ABSTRACT
+#    endif
+
+#    if (__SUNPRO_CC <= 0x5100)
+       // Sun 5.10 may not correctly value-initialize objects of
+       // some user defined types, as was reported in April 2010
+       // (CR 6947016), and confirmed by Steve Clamage.
+       // (Niels Dekker, LKEB, May 2010).
+#      define BOOST_NO_COMPLETE_VALUE_INITIALIZATION
+#    endif
+
+//
+// Dynamic shared object (DSO) and dynamic-link library (DLL) support
+//
+#if __SUNPRO_CC > 0x500
+#  define BOOST_SYMBOL_EXPORT __global
+#  define BOOST_SYMBOL_IMPORT __global
+#  define BOOST_SYMBOL_VISIBLE __global
+#endif
+
+#if (__SUNPRO_CC < 0x5130)
+// C++03 features in 12.4:
+#define BOOST_NO_TWO_PHASE_NAME_LOOKUP
+#define BOOST_NO_SFINAE_EXPR
+#define BOOST_NO_ADL_BARRIER
+#define BOOST_NO_CXX11_VARIADIC_MACROS
+#endif
+
+#if (__SUNPRO_CC < 0x5130) || (__cplusplus < 201100)
+// C++11 only featuires in 12.4:
+#define BOOST_NO_CXX11_AUTO_DECLARATIONS
+#define BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
+#define BOOST_NO_CXX11_CHAR16_T
+#define BOOST_NO_CXX11_CHAR32_T
+#define BOOST_NO_CXX11_CONSTEXPR
+#define BOOST_NO_CXX11_DECLTYPE
+#define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#define BOOST_NO_CXX11_DELETED_FUNCTIONS
+#define BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+#define BOOST_NO_CXX11_EXTERN_TEMPLATE
+#define BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#define BOOST_NO_CXX11_HDR_INITIALIZER_LIST
+#define BOOST_NO_CXX11_LAMBDAS
+#define BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#define BOOST_NO_CXX11_NOEXCEPT
+#define BOOST_NO_CXX11_NULLPTR
+#define BOOST_NO_CXX11_RANGE_BASED_FOR
+#define BOOST_NO_CXX11_RAW_LITERALS
+#define BOOST_NO_CXX11_RVALUE_REFERENCES
+#define BOOST_NO_CXX11_SCOPED_ENUMS
+#define BOOST_NO_CXX11_STATIC_ASSERT
+#define BOOST_NO_CXX11_TEMPLATE_ALIASES
+#define BOOST_NO_CXX11_UNICODE_LITERALS
+#define BOOST_NO_CXX11_ALIGNAS
+#define BOOST_NO_CXX11_TRAILING_RESULT_TYPES
+#define BOOST_NO_CXX11_INLINE_NAMESPACES
+#define BOOST_NO_CXX11_FINAL
+#define BOOST_NO_CXX11_UNRESTRICTED_UNION
+#endif
+
+#if (__SUNPRO_CC < 0x5140) || (__cplusplus < 201103)
+#define BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#define BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#define BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS
+#define BOOST_NO_CXX11_DECLTYPE_N3276
+#define BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#define BOOST_NO_CXX11_REF_QUALIFIERS
+#define BOOST_NO_CXX11_THREAD_LOCAL
+#endif
+
+#define BOOST_NO_COMPLETE_VALUE_INITIALIZATION
+//
+// C++0x features
+//
+#  define BOOST_HAS_LONG_LONG
+
+#define BOOST_NO_CXX11_SFINAE_EXPR
+
+// C++ 14:
+#if !defined(__cpp_aggregate_nsdmi) || (__cpp_aggregate_nsdmi < 201304)
+#  define BOOST_NO_CXX14_AGGREGATE_NSDMI
+#endif
+#if !defined(__cpp_binary_literals) || (__cpp_binary_literals < 201304)
+#  define BOOST_NO_CXX14_BINARY_LITERALS
+#endif
+#if !defined(__cpp_constexpr) || (__cpp_constexpr < 201304)
+#  define BOOST_NO_CXX14_CONSTEXPR
+#endif
+#if !defined(__cpp_decltype_auto) || (__cpp_decltype_auto < 201304) || (__cplusplus < 201402L)
+#  define BOOST_NO_CXX14_DECLTYPE_AUTO
+#endif
+#if (__cplusplus < 201304) // There's no SD6 check for this....
+#  define BOOST_NO_CXX14_DIGIT_SEPARATORS
+#endif
+#if !defined(__cpp_generic_lambdas) || (__cpp_generic_lambdas < 201304)
+#  define BOOST_NO_CXX14_GENERIC_LAMBDAS
+#endif
+#if !defined(__cpp_init_captures) || (__cpp_init_captures < 201304)
+#  define BOOST_NO_CXX14_INITIALIZED_LAMBDA_CAPTURES
+#endif
+#if !defined(__cpp_return_type_deduction) || (__cpp_return_type_deduction < 201304)
+#  define BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION
+#endif
+#if !defined(__cpp_variable_templates) || (__cpp_variable_templates < 201304)
+#  define BOOST_NO_CXX14_VARIABLE_TEMPLATES
+#endif
+
+// C++17
+#if !defined(__cpp_structured_bindings) || (__cpp_structured_bindings < 201606)
+#  define BOOST_NO_CXX17_STRUCTURED_BINDINGS
+#endif
+#if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606)
+#  define BOOST_NO_CXX17_INLINE_VARIABLES
+#endif
+#if !defined(__cpp_fold_expressions) || (__cpp_fold_expressions < 201603)
+#  define BOOST_NO_CXX17_FOLD_EXPRESSIONS
+#endif
+#if !defined(__cpp_if_constexpr) || (__cpp_if_constexpr < 201606)
+#  define BOOST_NO_CXX17_IF_CONSTEXPR
+#endif
+
+// Turn on threading support for Solaris 12.
+// Ticket #11972
+#if (__SUNPRO_CC >= 0x5140) && defined(__SunOS_5_12) && !defined(BOOST_HAS_THREADS)
+# define BOOST_HAS_THREADS
+#endif
+
+//
+// Version
+//
+
+#define BOOST_COMPILER "Sun compiler version " BOOST_STRINGIZE(__SUNPRO_CC)
+
+//
+// versions check:
+// we don't support sunpro prior to version 4:
+#if __SUNPRO_CC < 0x400
+#error "Compiler not supported or configured - please reconfigure"
+#endif
+//
+// last known and checked version:
+#if (__SUNPRO_CC > 0x5150)
+#  if defined(BOOST_ASSERT_CONFIG)
+#     error "Boost.Config is older than your compiler - please check for an updated Boost release."
+#  endif
+#endif
--- a/oss/boost/boost_1_73_0/boost/config/compiler/vacpp.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/vacpp.hpp
@@ -0,0 +1,184 @@
+//  (C) Copyright John Maddock 2001 - 2003.
+//  (C) Copyright Toon Knapen 2001 - 2003.
+//  (C) Copyright Lie-Quan Lee 2001.
+//  (C) Copyright Markus Schoepflin 2002 - 2003.
+//  (C) Copyright Beman Dawes 2002 - 2003.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+//  Visual Age (IBM) C++ compiler setup:
+
+#if __IBMCPP__ <= 501
+#  define BOOST_NO_MEMBER_TEMPLATE_FRIENDS
+#  define BOOST_NO_MEMBER_FUNCTION_SPECIALIZATIONS
+#endif
+
+#if (__IBMCPP__ <= 502)
+// Actually the compiler supports inclass member initialization but it
+// requires a definition for the class member and it doesn't recognize
+// it as an integral constant expression when used as a template argument.
+#  define BOOST_NO_INCLASS_MEMBER_INITIALIZATION
+#  define BOOST_NO_INTEGRAL_INT64_T
+#  define BOOST_NO_MEMBER_TEMPLATE_KEYWORD
+#endif
+
+#if (__IBMCPP__ <= 600) || !defined(BOOST_STRICT_CONFIG)
+#  define BOOST_NO_POINTER_TO_MEMBER_TEMPLATE_PARAMETERS
+#endif
+
+#if (__IBMCPP__ <= 1110)
+// XL C++ V11.1 and earlier versions may not always value-initialize
+// a temporary object T(), when T is a non-POD aggregate class type.
+// Michael Wong (IBM Canada Ltd) has confirmed this issue and gave it
+// high priority. -- Niels Dekker (LKEB), May 2010.
+#  define BOOST_NO_COMPLETE_VALUE_INITIALIZATION
+#endif
+
+//
+// On AIX thread support seems to be indicated by _THREAD_SAFE:
+//
+#ifdef _THREAD_SAFE
+#  define BOOST_HAS_THREADS
+#endif
+
+#define BOOST_COMPILER "IBM Visual Age version " BOOST_STRINGIZE(__IBMCPP__)
+
+//
+// versions check:
+// we don't support Visual age prior to version 5:
+#if __IBMCPP__ < 500
+#error "Compiler not supported or configured - please reconfigure"
+#endif
+//
+// last known and checked version is 1210:
+#if (__IBMCPP__ > 1210)
+#  if defined(BOOST_ASSERT_CONFIG)
+#     error "boost: Unknown compiler version - please run the configure tests and report the results"
+#  endif
+#endif
+
+// Some versions of the compiler have issues with default arguments on partial specializations
+#if __IBMCPP__ <= 1010
+#define BOOST_NO_PARTIAL_SPECIALIZATION_IMPLICIT_DEFAULT_ARGS
+#endif
+
+// Type aliasing hint. Supported since XL C++ 13.1
+#if (__IBMCPP__ >= 1310)
+#  define BOOST_MAY_ALIAS __attribute__((__may_alias__))
+#endif
+
+//
+// C++0x features
+//
+//   See boost\config\suffix.hpp for BOOST_NO_LONG_LONG
+//
+#if ! __IBMCPP_AUTO_TYPEDEDUCTION
+#  define BOOST_NO_CXX11_AUTO_DECLARATIONS
+#  define BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
+#endif
+#if ! __IBMCPP_UTF_LITERAL__
+#  define BOOST_NO_CXX11_CHAR16_T
+#  define BOOST_NO_CXX11_CHAR32_T
+#endif
+#if ! __IBMCPP_CONSTEXPR
+#  define BOOST_NO_CXX11_CONSTEXPR
+#endif
+#if ! __IBMCPP_DECLTYPE
+#  define BOOST_NO_CXX11_DECLTYPE
+#else
+#  define BOOST_HAS_DECLTYPE
+#endif
+#define BOOST_NO_CXX11_DECLTYPE_N3276
+#define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#define BOOST_NO_CXX11_DELETED_FUNCTIONS
+#if ! __IBMCPP_EXPLICIT_CONVERSION_OPERATORS
+#  define BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+#endif
+#if ! __IBMCPP_EXTERN_TEMPLATE
+#  define BOOST_NO_CXX11_EXTERN_TEMPLATE
+#endif
+#if ! __IBMCPP_VARIADIC_TEMPLATES
+// not enabled separately at this time
+#  define BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#endif
+#define BOOST_NO_CXX11_HDR_INITIALIZER_LIST
+#define BOOST_NO_CXX11_LAMBDAS
+#define BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#define BOOST_NO_CXX11_NOEXCEPT
+#define BOOST_NO_CXX11_NULLPTR
+#define BOOST_NO_CXX11_RANGE_BASED_FOR
+#define BOOST_NO_CXX11_RAW_LITERALS
+#define BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#if ! __IBMCPP_RVALUE_REFERENCES
+#  define BOOST_NO_CXX11_RVALUE_REFERENCES
+#endif
+#if ! __IBMCPP_SCOPED_ENUM
+#  define BOOST_NO_CXX11_SCOPED_ENUMS
+#endif
+#define BOOST_NO_SFINAE_EXPR
+#define BOOST_NO_CXX11_SFINAE_EXPR
+#define BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#if ! __IBMCPP_STATIC_ASSERT
+#  define BOOST_NO_CXX11_STATIC_ASSERT
+#endif
+#define BOOST_NO_CXX11_TEMPLATE_ALIASES
+#define BOOST_NO_CXX11_UNICODE_LITERALS
+#if ! __IBMCPP_VARIADIC_TEMPLATES
+#  define BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#endif
+#if ! __C99_MACRO_WITH_VA_ARGS
+#  define BOOST_NO_CXX11_VARIADIC_MACROS
+#endif
+#define BOOST_NO_CXX11_ALIGNAS
+#define BOOST_NO_CXX11_TRAILING_RESULT_TYPES
+#define BOOST_NO_CXX11_INLINE_NAMESPACES
+#define BOOST_NO_CXX11_REF_QUALIFIERS
+#define BOOST_NO_CXX11_FINAL
+#define BOOST_NO_CXX11_THREAD_LOCAL
+#define BOOST_NO_CXX11_UNRESTRICTED_UNION
+
+// C++ 14:
+#if !defined(__cpp_aggregate_nsdmi) || (__cpp_aggregate_nsdmi < 201304)
+#  define BOOST_NO_CXX14_AGGREGATE_NSDMI
+#endif
+#if !defined(__cpp_binary_literals) || (__cpp_binary_literals < 201304)
+#  define BOOST_NO_CXX14_BINARY_LITERALS
+#endif
+#if !defined(__cpp_constexpr) || (__cpp_constexpr < 201304)
+#  define BOOST_NO_CXX14_CONSTEXPR
+#endif
+#if !defined(__cpp_decltype_auto) || (__cpp_decltype_auto < 201304)
+#  define BOOST_NO_CXX14_DECLTYPE_AUTO
+#endif
+#if (__cplusplus < 201304) // There's no SD6 check for this....
+#  define BOOST_NO_CXX14_DIGIT_SEPARATORS
+#endif
+#if !defined(__cpp_generic_lambdas) || (__cpp_generic_lambdas < 201304)
+#  define BOOST_NO_CXX14_GENERIC_LAMBDAS
+#endif
+#if !defined(__cpp_init_captures) || (__cpp_init_captures < 201304)
+#  define BOOST_NO_CXX14_INITIALIZED_LAMBDA_CAPTURES
+#endif
+#if !defined(__cpp_return_type_deduction) || (__cpp_return_type_deduction < 201304)
+#  define BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION
+#endif
+#if !defined(__cpp_variable_templates) || (__cpp_variable_templates < 201304)
+#  define BOOST_NO_CXX14_VARIABLE_TEMPLATES
+#endif
+
+// C++17
+#if !defined(__cpp_structured_bindings) || (__cpp_structured_bindings < 201606)
+#  define BOOST_NO_CXX17_STRUCTURED_BINDINGS
+#endif
+#if !defined(__cpp_inline_variables) || (__cpp_inline_variables < 201606)
+#  define BOOST_NO_CXX17_INLINE_VARIABLES
+#endif
+#if !defined(__cpp_fold_expressions) || (__cpp_fold_expressions < 201603)
+#  define BOOST_NO_CXX17_FOLD_EXPRESSIONS
+#endif
+#if !defined(__cpp_if_constexpr) || (__cpp_if_constexpr < 201606)
+#  define BOOST_NO_CXX17_IF_CONSTEXPR
+#endif
--- a/oss/boost/boost_1_73_0/boost/config/compiler/visualc.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/visualc.hpp
@@ -0,0 +1,366 @@
+//  (C) Copyright John Maddock 2001 - 2003.
+//  (C) Copyright Darin Adler 2001 - 2002.
+//  (C) Copyright Peter Dimov 2001.
+//  (C) Copyright Aleksey Gurtovoy 2002.
+//  (C) Copyright David Abrahams 2002 - 2003.
+//  (C) Copyright Beman Dawes 2002 - 2003.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+//
+//  Microsoft Visual C++ compiler setup:
+//
+//  We need to be careful with the checks in this file, as contrary
+//  to popular belief there are versions with _MSC_VER with the final
+//  digit non-zero (mainly the MIPS cross compiler).
+//
+//  So we either test _MSC_VER >= XXXX or else _MSC_VER < XXXX.
+//  No other comparisons (==, >, or <=) are safe.
+//
+
+#define BOOST_MSVC _MSC_VER
+
+//
+// Helper macro BOOST_MSVC_FULL_VER for use in Boost code:
+//
+#if _MSC_FULL_VER > 100000000
+#  define BOOST_MSVC_FULL_VER _MSC_FULL_VER
+#else
+#  define BOOST_MSVC_FULL_VER (_MSC_FULL_VER * 10)
+#endif
+
+// Attempt to suppress VC6 warnings about the length of decorated names (obsolete):
+#pragma warning( disable : 4503 ) // warning: decorated name length exceeded
+
+#define BOOST_HAS_PRAGMA_ONCE
+
+//
+// versions check:
+// we don't support Visual C++ prior to version 7.1:
+#if _MSC_VER < 1310
+#  error "Compiler not supported or configured - please reconfigure"
+#endif
+
+// VS2005 (VC8) docs: __assume has been in Visual C++ for multiple releases
+#define BOOST_UNREACHABLE_RETURN(x) __assume(0);
+
+#if _MSC_FULL_VER < 180020827
+#  define BOOST_NO_FENV_H
+#endif
+
+#if _MSC_VER < 1400
+// although a conforming signature for swprint exists in VC7.1
+// it appears not to actually work:
+#  define BOOST_NO_SWPRINTF
+// Our extern template tests also fail for this compiler:
+#  define BOOST_NO_CXX11_EXTERN_TEMPLATE
+// Variadic macros do not exist for VC7.1 and lower
+#  define BOOST_NO_CXX11_VARIADIC_MACROS
+#  define BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#endif
+
+#if _MSC_VER < 1500  // 140X == VC++ 8.0
+#  define BOOST_NO_MEMBER_TEMPLATE_FRIENDS
+#endif
+
+#if _MSC_VER < 1600  // 150X == VC++ 9.0
+   // A bug in VC9:
+#  define BOOST_NO_ADL_BARRIER
+#endif
+
+
+#ifndef _NATIVE_WCHAR_T_DEFINED
+#  define BOOST_NO_INTRINSIC_WCHAR_T
+#endif
+
+//
+// check for exception handling support:
+#if !defined(_CPPUNWIND) && !defined(BOOST_NO_EXCEPTIONS)
+#  define BOOST_NO_EXCEPTIONS
+#endif
+
+//
+// __int64 support:
+//
+#define BOOST_HAS_MS_INT64
+#if defined(_MSC_EXTENSIONS) || (_MSC_VER >= 1400)
+#   define BOOST_HAS_LONG_LONG
+#else
+#   define BOOST_NO_LONG_LONG
+#endif
+#if (_MSC_VER >= 1400) && !defined(_DEBUG)
+#   define BOOST_HAS_NRVO
+#endif
+#if _MSC_VER >= 1600  // 160X == VC++ 10.0
+#  define BOOST_HAS_PRAGMA_DETECT_MISMATCH
+#endif
+//
+// disable Win32 API's if compiler extensions are
+// turned off:
+//
+#if !defined(_MSC_EXTENSIONS) && !defined(BOOST_DISABLE_WIN32)
+#  define BOOST_DISABLE_WIN32
+#endif
+#if !defined(_CPPRTTI) && !defined(BOOST_NO_RTTI)
+#  define BOOST_NO_RTTI
+#endif
+
+//
+// TR1 features:
+//
+#if (_MSC_VER >= 1700) && defined(_HAS_CXX17) && (_HAS_CXX17 > 0)
+// # define BOOST_HAS_TR1_HASH          // don't know if this is true yet.
+// # define BOOST_HAS_TR1_TYPE_TRAITS   // don't know if this is true yet.
+# define BOOST_HAS_TR1_UNORDERED_MAP
+# define BOOST_HAS_TR1_UNORDERED_SET
+#endif
+
+//
+// C++0x features
+//
+//   See above for BOOST_NO_LONG_LONG
+
+// C++ features supported by VC++ 10 (aka 2010)
+//
+#if _MSC_VER < 1600
+#  define BOOST_NO_CXX11_AUTO_DECLARATIONS
+#  define BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
+#  define BOOST_NO_CXX11_LAMBDAS
+#  define BOOST_NO_CXX11_RVALUE_REFERENCES
+#  define BOOST_NO_CXX11_STATIC_ASSERT
+#  define BOOST_NO_CXX11_NULLPTR
+#  define BOOST_NO_CXX11_DECLTYPE
+#endif // _MSC_VER < 1600
+
+#if _MSC_VER >= 1600
+#  define BOOST_HAS_STDINT_H
+#endif
+
+// C++11 features supported by VC++ 11 (aka 2012)
+//
+#if _MSC_VER < 1700
+#  define BOOST_NO_CXX11_FINAL
+#  define BOOST_NO_CXX11_RANGE_BASED_FOR
+#  define BOOST_NO_CXX11_SCOPED_ENUMS
+#endif // _MSC_VER < 1700
+
+// C++11 features supported by VC++ 12 (aka 2013).
+//
+#if _MSC_FULL_VER < 180020827
+#  define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#  define BOOST_NO_CXX11_DELETED_FUNCTIONS
+#  define BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+#  define BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#  define BOOST_NO_CXX11_RAW_LITERALS
+#  define BOOST_NO_CXX11_TEMPLATE_ALIASES
+#  define BOOST_NO_CXX11_TRAILING_RESULT_TYPES
+#  define BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#  define BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#  define BOOST_NO_CXX11_DECLTYPE_N3276
+#endif
+
+#if _MSC_FULL_VER >= 180020827
+#define BOOST_HAS_EXPM1
+#define BOOST_HAS_LOG1P
+#endif
+
+// C++11 features supported by VC++ 14 (aka 2015)
+//
+#if (_MSC_FULL_VER < 190023026)
+#  define BOOST_NO_CXX11_NOEXCEPT
+#  define BOOST_NO_CXX11_DEFAULTED_MOVES
+#  define BOOST_NO_CXX11_REF_QUALIFIERS
+#  define BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#  define BOOST_NO_CXX11_ALIGNAS
+#  define BOOST_NO_CXX11_INLINE_NAMESPACES
+#  define BOOST_NO_CXX11_CHAR16_T
+#  define BOOST_NO_CXX11_CHAR32_T
+#  define BOOST_NO_CXX11_UNICODE_LITERALS
+#  define BOOST_NO_CXX14_DECLTYPE_AUTO
+#  define BOOST_NO_CXX14_INITIALIZED_LAMBDA_CAPTURES
+#  define BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION
+#  define BOOST_NO_CXX14_BINARY_LITERALS
+#  define BOOST_NO_CXX14_GENERIC_LAMBDAS
+#  define BOOST_NO_CXX14_DIGIT_SEPARATORS
+#  define BOOST_NO_CXX11_THREAD_LOCAL
+#  define BOOST_NO_CXX11_UNRESTRICTED_UNION
+#endif
+// C++11 features supported by VC++ 14 update 3 (aka 2015)
+//
+#if (_MSC_FULL_VER < 190024210)
+#  define BOOST_NO_CXX14_VARIABLE_TEMPLATES
+#  define BOOST_NO_SFINAE_EXPR
+#  define BOOST_NO_CXX11_CONSTEXPR
+#endif
+
+// C++14 features supported by VC++ 14.1 (Visual Studio 2017)
+//
+#if (_MSC_VER < 1910)
+#  define BOOST_NO_CXX14_AGGREGATE_NSDMI
+#endif
+
+// C++17 features supported by VC++ 14.1 (Visual Studio 2017) Update 3
+//
+#if (_MSC_VER < 1911) || (_MSVC_LANG < 201703)
+#  define BOOST_NO_CXX17_STRUCTURED_BINDINGS
+#  define BOOST_NO_CXX17_IF_CONSTEXPR
+// Let the defaults handle these now:
+//#  define BOOST_NO_CXX17_HDR_OPTIONAL
+//#  define BOOST_NO_CXX17_HDR_STRING_VIEW
+#endif
+
+// MSVC including version 14 has not yet completely
+// implemented value-initialization, as is reported:
+// "VC++ does not value-initialize members of derived classes without
+// user-declared constructor", reported in 2009 by Sylvester Hesp:
+// https://connect.microsoft.com/VisualStudio/feedback/details/484295
+// "Presence of copy constructor breaks member class initialization",
+// reported in 2009 by Alex Vakulenko:
+// https://connect.microsoft.com/VisualStudio/feedback/details/499606
+// "Value-initialization in new-expression", reported in 2005 by
+// Pavel Kuznetsov (MetaCommunications Engineering):
+// https://connect.microsoft.com/VisualStudio/feedback/details/100744
+// Reported again by John Maddock in 2015 for VC14:
+// https://connect.microsoft.com/VisualStudio/feedback/details/1582233/c-subobjects-still-not-value-initialized-correctly
+// See also: http://www.boost.org/libs/utility/value_init.htm#compiler_issues
+// (Niels Dekker, LKEB, May 2010)
+// Still present in VC15.5, Dec 2017.
+#define BOOST_NO_COMPLETE_VALUE_INITIALIZATION
+//
+// C++ 11:
+//
+// This is supported with /permissive- for 15.5 onwards, unfortunately we appear to have no way to tell
+// if this is in effect or not, in any case nothing in Boost is currently using this, so we'll just go
+// on defining it for now:
+//
+#  define BOOST_NO_TWO_PHASE_NAME_LOOKUP
+
+#if (_MSC_VER < 1912) || (_MSVC_LANG < 201402)
+// Supported from msvc-15.5 onwards:
+#define BOOST_NO_CXX11_SFINAE_EXPR
+#endif
+#if (_MSC_VER < 1915) || (_MSVC_LANG < 201402)
+// C++ 14:
+// Still gives internal compiler error for msvc-15.5:
+#  define BOOST_NO_CXX14_CONSTEXPR
+#endif
+// C++ 17:
+#if (_MSC_VER < 1912) || (_MSVC_LANG < 201703)
+#define BOOST_NO_CXX17_INLINE_VARIABLES
+#define BOOST_NO_CXX17_FOLD_EXPRESSIONS
+#endif
+
+//
+// Things that don't work in clr mode:
+//
+#ifdef _M_CEE
+#ifndef BOOST_NO_CXX11_THREAD_LOCAL
+#  define BOOST_NO_CXX11_THREAD_LOCAL
+#endif
+#ifndef BOOST_NO_SFINAE_EXPR
+#  define BOOST_NO_SFINAE_EXPR
+#endif
+#ifndef BOOST_NO_CXX11_REF_QUALIFIERS
+#  define BOOST_NO_CXX11_REF_QUALIFIERS
+#endif
+#endif
+#ifdef _M_CEE_PURE
+#ifndef BOOST_NO_CXX11_CONSTEXPR
+#  define BOOST_NO_CXX11_CONSTEXPR
+#endif
+#endif
+
+//
+// prefix and suffix headers:
+//
+#ifndef BOOST_ABI_PREFIX
+#  define BOOST_ABI_PREFIX "boost/config/abi/msvc_prefix.hpp"
+#endif
+#ifndef BOOST_ABI_SUFFIX
+#  define BOOST_ABI_SUFFIX "boost/config/abi/msvc_suffix.hpp"
+#endif
+
+#ifndef BOOST_COMPILER
+// TODO:
+// these things are mostly bogus. 1200 means version 12.0 of the compiler. The
+// artificial versions assigned to them only refer to the versions of some IDE
+// these compilers have been shipped with, and even that is not all of it. Some
+// were shipped with freely downloadable SDKs, others as crosscompilers in eVC.
+// IOW, you can't use these 'versions' in any sensible way. Sorry.
+# if defined(UNDER_CE)
+#   if _MSC_VER < 1400
+      // Note: I'm not aware of any CE compiler with version 13xx
+#      if defined(BOOST_ASSERT_CONFIG)
+#         error "boost: Unknown EVC++ compiler version - please run the configure tests and report the results"
+#      else
+#         pragma message("boost: Unknown EVC++ compiler version - please run the configure tests and report the results")
+#      endif
+#   elif _MSC_VER < 1500
+#     define BOOST_COMPILER_VERSION evc8
+#   elif _MSC_VER < 1600
+#     define BOOST_COMPILER_VERSION evc9
+#   elif _MSC_VER < 1700
+#     define BOOST_COMPILER_VERSION evc10
+#   elif _MSC_VER < 1800 
+#     define BOOST_COMPILER_VERSION evc11 
+#   elif _MSC_VER < 1900 
+#     define BOOST_COMPILER_VERSION evc12
+#   elif _MSC_VER < 2000  
+#     define BOOST_COMPILER_VERSION evc14
+#   else
+#      if defined(BOOST_ASSERT_CONFIG)
+#         error "boost: Unknown EVC++ compiler version - please run the configure tests and report the results"
+#      else
+#         pragma message("boost: Unknown EVC++ compiler version - please run the configure tests and report the results")
+#      endif
+#   endif
+# else
+#   if _MSC_VER < 1200
+      // Note: Versions up to 10.0 aren't supported.
+#     define BOOST_COMPILER_VERSION 5.0
+#   elif _MSC_VER < 1300
+#     define BOOST_COMPILER_VERSION 6.0
+#   elif _MSC_VER < 1310
+#     define BOOST_COMPILER_VERSION 7.0
+#   elif _MSC_VER < 1400
+#     define BOOST_COMPILER_VERSION 7.1
+#   elif _MSC_VER < 1500
+#     define BOOST_COMPILER_VERSION 8.0
+#   elif _MSC_VER < 1600
+#     define BOOST_COMPILER_VERSION 9.0
+#   elif _MSC_VER < 1700
+#     define BOOST_COMPILER_VERSION 10.0
+#   elif _MSC_VER < 1800 
+#     define BOOST_COMPILER_VERSION 11.0
+#   elif _MSC_VER < 1900
+#     define BOOST_COMPILER_VERSION 12.0
+#   elif _MSC_VER < 1910
+#     define BOOST_COMPILER_VERSION 14.0
+#   elif _MSC_VER < 1920
+#     define BOOST_COMPILER_VERSION 14.1
+#   elif _MSC_VER < 1930
+#     define BOOST_COMPILER_VERSION 14.2
+#   else
+#     define BOOST_COMPILER_VERSION _MSC_VER
+#   endif
+# endif
+
+#  define BOOST_COMPILER "Microsoft Visual C++ version " BOOST_STRINGIZE(BOOST_COMPILER_VERSION)
+#endif
+
+#include <boost/config/pragma_message.hpp>
+
+//
+// last known and checked version is 19.20.27508 (VC++ 2019 RC3):
+#if (_MSC_VER > 1920)
+#  if defined(BOOST_ASSERT_CONFIG)
+#     error "Boost.Config is older than your current compiler version."
+#  elif !defined(BOOST_CONFIG_SUPPRESS_OUTDATED_MESSAGE)
+      //
+      // Disabled as of March 2018 - the pace of VS releases is hard to keep up with
+      // and in any case, we have relatively few defect macros defined now.
+      // BOOST_PRAGMA_MESSAGE("Info: Boost.Config is older than your compiler version - probably nothing bad will happen - but you may wish to look for an updated Boost version. Define BOOST_CONFIG_SUPPRESS_OUTDATED_MESSAGE to suppress this message.")
+#  endif
+#endif
--- a/oss/boost/boost_1_73_0/boost/config/compiler/xlcpp.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/xlcpp.hpp
@@ -0,0 +1,289 @@
+// (C) Copyright Douglas Gregor 2010
+//
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version.
+
+//  compiler setup for IBM XL C/C++ for Linux (Little Endian) based on clang.
+
+#define BOOST_HAS_PRAGMA_ONCE
+
+// Detecting `-fms-extension` compiler flag assuming that _MSC_VER defined when that flag is used.
+#if defined (_MSC_VER) && (__clang_major__ > 3 || (__clang_major__ == 3 && __clang_minor__ >= 4))
+#   define BOOST_HAS_PRAGMA_DETECT_MISMATCH
+#endif
+
+// When compiling with clang before __has_extension was defined,
+// even if one writes 'defined(__has_extension) && __has_extension(xxx)',
+// clang reports a compiler error. So the only workaround found is:
+
+#ifndef __has_extension
+#define __has_extension __has_feature
+#endif
+
+#ifndef __has_cpp_attribute
+#define __has_cpp_attribute(x) 0
+#endif
+
+#if !__has_feature(cxx_exceptions) && !defined(BOOST_NO_EXCEPTIONS)
+#  define BOOST_NO_EXCEPTIONS
+#endif
+
+#if !__has_feature(cxx_rtti) && !defined(BOOST_NO_RTTI)
+#  define BOOST_NO_RTTI
+#endif
+
+#if !__has_feature(cxx_rtti) && !defined(BOOST_NO_TYPEID)
+#  define BOOST_NO_TYPEID
+#endif
+
+#if defined(__int64) && !defined(__GNUC__)
+#  define BOOST_HAS_MS_INT64
+#endif
+
+#define BOOST_HAS_NRVO
+
+// Branch prediction hints
+#if defined(__has_builtin)
+#if __has_builtin(__builtin_expect)
+#define BOOST_LIKELY(x) __builtin_expect(x, 1)
+#define BOOST_UNLIKELY(x) __builtin_expect(x, 0)
+#endif
+#endif
+
+// Clang supports "long long" in all compilation modes.
+#define BOOST_HAS_LONG_LONG
+
+//
+// Dynamic shared object (DSO) and dynamic-link library (DLL) support
+//
+#if !defined(_WIN32) && !defined(__WIN32__) && !defined(WIN32)
+#  define BOOST_SYMBOL_EXPORT __attribute__((__visibility__("default")))
+#  define BOOST_SYMBOL_IMPORT
+#  define BOOST_SYMBOL_VISIBLE __attribute__((__visibility__("default")))
+#endif
+
+//
+// The BOOST_FALLTHROUGH macro can be used to annotate implicit fall-through
+// between switch labels.
+//
+#if __cplusplus >= 201103L && defined(__has_warning)
+#  if __has_feature(cxx_attributes) && __has_warning("-Wimplicit-fallthrough")
+#    define BOOST_FALLTHROUGH [[clang::fallthrough]]
+#  endif
+#endif
+
+#if !__has_feature(cxx_auto_type)
+#  define BOOST_NO_CXX11_AUTO_DECLARATIONS
+#  define BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
+#endif
+
+//
+// Currently clang on Windows using VC++ RTL does not support C++11's char16_t or char32_t
+//
+#if defined(_MSC_VER) || !(defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L)
+#  define BOOST_NO_CXX11_CHAR16_T
+#  define BOOST_NO_CXX11_CHAR32_T
+#endif
+
+#if !__has_feature(cxx_constexpr)
+#  define BOOST_NO_CXX11_CONSTEXPR
+#endif
+
+#if !__has_feature(cxx_decltype)
+#  define BOOST_NO_CXX11_DECLTYPE
+#endif
+
+#if !__has_feature(cxx_decltype_incomplete_return_types)
+#  define BOOST_NO_CXX11_DECLTYPE_N3276
+#endif
+
+#if !__has_feature(cxx_defaulted_functions)
+#  define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#endif
+
+#if !__has_feature(cxx_deleted_functions)
+#  define BOOST_NO_CXX11_DELETED_FUNCTIONS
+#endif
+
+#if !__has_feature(cxx_explicit_conversions)
+#  define BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+#endif
+
+#if !__has_feature(cxx_default_function_template_args)
+#  define BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#endif
+
+#if !__has_feature(cxx_generalized_initializers)
+#  define BOOST_NO_CXX11_HDR_INITIALIZER_LIST
+#endif
+
+#if !__has_feature(cxx_lambdas)
+#  define BOOST_NO_CXX11_LAMBDAS
+#endif
+
+#if !__has_feature(cxx_local_type_template_args)
+#  define BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
+#endif
+
+#if !__has_feature(cxx_noexcept)
+#  define BOOST_NO_CXX11_NOEXCEPT
+#endif
+
+#if !__has_feature(cxx_nullptr)
+#  define BOOST_NO_CXX11_NULLPTR
+#endif
+
+#if !__has_feature(cxx_range_for)
+#  define BOOST_NO_CXX11_RANGE_BASED_FOR
+#endif
+
+#if !__has_feature(cxx_raw_string_literals)
+#  define BOOST_NO_CXX11_RAW_LITERALS
+#endif
+
+#if !__has_feature(cxx_reference_qualified_functions)
+#  define BOOST_NO_CXX11_REF_QUALIFIERS
+#endif
+
+#if !__has_feature(cxx_generalized_initializers)
+#  define BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#endif
+
+#if !__has_feature(cxx_rvalue_references)
+#  define BOOST_NO_CXX11_RVALUE_REFERENCES
+#endif
+
+#if !__has_feature(cxx_strong_enums)
+#  define BOOST_NO_CXX11_SCOPED_ENUMS
+#endif
+
+#if !__has_feature(cxx_static_assert)
+#  define BOOST_NO_CXX11_STATIC_ASSERT
+#endif
+
+#if !__has_feature(cxx_alias_templates)
+#  define BOOST_NO_CXX11_TEMPLATE_ALIASES
+#endif
+
+#if !__has_feature(cxx_unicode_literals)
+#  define BOOST_NO_CXX11_UNICODE_LITERALS
+#endif
+
+#if !__has_feature(cxx_variadic_templates)
+#  define BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#endif
+
+#if !__has_feature(cxx_user_literals)
+#  define BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#endif
+
+#if !__has_feature(cxx_alignas)
+#  define BOOST_NO_CXX11_ALIGNAS
+#endif
+
+#if !__has_feature(cxx_trailing_return)
+#  define BOOST_NO_CXX11_TRAILING_RESULT_TYPES
+#endif
+
+#if !__has_feature(cxx_inline_namespaces)
+#  define BOOST_NO_CXX11_INLINE_NAMESPACES
+#endif
+
+#if !__has_feature(cxx_override_control)
+#  define BOOST_NO_CXX11_FINAL
+#endif
+
+#if !__has_feature(cxx_unrestricted_unions)
+#  define BOOST_NO_CXX11_UNRESTRICTED_UNION
+#endif
+
+#if !(__has_feature(__cxx_binary_literals__) || __has_extension(__cxx_binary_literals__))
+#  define BOOST_NO_CXX14_BINARY_LITERALS
+#endif
+
+#if !__has_feature(__cxx_decltype_auto__)
+#  define BOOST_NO_CXX14_DECLTYPE_AUTO
+#endif
+
+#if !__has_feature(__cxx_aggregate_nsdmi__)
+#  define BOOST_NO_CXX14_AGGREGATE_NSDMI
+#endif
+
+#if !__has_feature(__cxx_init_captures__)
+#  define BOOST_NO_CXX14_INITIALIZED_LAMBDA_CAPTURES
+#endif
+
+#if !__has_feature(__cxx_generic_lambdas__)
+#  define BOOST_NO_CXX14_GENERIC_LAMBDAS
+#endif
+
+// clang < 3.5 has a defect with dependent type, like following.
+//
+//  template <class T>
+//  constexpr typename enable_if<pred<T> >::type foo(T &)
+//  { } // error: no return statement in constexpr function
+//
+// This issue also affects C++11 mode, but C++11 constexpr requires return stmt.
+// Therefore we don't care such case.
+//
+// Note that we can't check Clang version directly as the numbering system changes depending who's
+// creating the Clang release (see https://github.com/boostorg/config/pull/39#issuecomment-59927873)
+// so instead verify that we have a feature that was introduced at the same time as working C++14
+// constexpr (generic lambda's in this case):
+//
+#if !__has_feature(__cxx_generic_lambdas__) || !__has_feature(__cxx_relaxed_constexpr__)
+#  define BOOST_NO_CXX14_CONSTEXPR
+#endif
+
+#if !__has_feature(__cxx_return_type_deduction__)
+#  define BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION
+#endif
+
+#if !__has_feature(__cxx_variable_templates__)
+#  define BOOST_NO_CXX14_VARIABLE_TEMPLATES
+#endif
+
+#if !defined(__cpp_structured_bindings) || (__cpp_structured_bindings < 201606)
+#  define BOOST_NO_CXX17_STRUCTURED_BINDINGS
+#endif
+
+#if !defined(__cpp_if_constexpr) || (__cpp_if_constexpr < 201606)
+#  define BOOST_NO_CXX17_IF_CONSTEXPR
+#endif
+
+// Clang 3.9+ in c++1z
+#if !__has_cpp_attribute(fallthrough) || __cplusplus < 201406L
+#  define BOOST_NO_CXX17_INLINE_VARIABLES
+#  define BOOST_NO_CXX17_FOLD_EXPRESSIONS
+#endif
+
+#if !__has_feature(cxx_thread_local)
+#  define BOOST_NO_CXX11_THREAD_LOCAL
+#endif
+
+#if __cplusplus < 201400
+// All versions with __cplusplus above this value seem to support this:
+#  define BOOST_NO_CXX14_DIGIT_SEPARATORS
+#endif
+
+
+// Unused attribute:
+#if defined(__GNUC__) && (__GNUC__ >= 4)
+#  define BOOST_ATTRIBUTE_UNUSED __attribute__((unused))
+#endif
+
+// Type aliasing hint.
+#if __has_attribute(__may_alias__)
+#  define BOOST_MAY_ALIAS __attribute__((__may_alias__))
+#endif
+
+#ifndef BOOST_COMPILER
+#  define BOOST_COMPILER "Clang version " __clang_version__
+#endif
+
+// Macro used to identify the Clang compiler.
+#define BOOST_CLANG 1
+
--- a/oss/boost/boost_1_73_0/boost/config/compiler/xlcpp_zos.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/compiler/xlcpp_zos.hpp
@@ -0,0 +1,171 @@
+//  Copyright (c) 2017 Dynatrace
+//
+//  Distributed under the Boost Software License, Version 1.0.
+//  See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt
+
+//  See http://www.boost.org for most recent version.
+
+//  Compiler setup for IBM z/OS XL C/C++ compiler.
+
+// Oldest compiler version currently supported is 2.1 (V2R1)
+#if !defined(__IBMCPP__) || !defined(__COMPILER_VER__) || __COMPILER_VER__ < 0x42010000
+#  error "Compiler not supported or configured - please reconfigure"
+#endif
+
+#if __COMPILER_VER__ > 0x42010000
+#  if defined(BOOST_ASSERT_CONFIG)
+#     error "Unknown compiler version - please run the configure tests and report the results"
+#  endif
+#endif
+
+#define BOOST_COMPILER "IBM z/OS XL C/C++ version " BOOST_STRINGIZE(__COMPILER_VER__)
+#define BOOST_XLCPP_ZOS __COMPILER_VER__
+
+// -------------------------------------
+
+#include <features.h> // For __UU, __C99, __TR1, ...
+
+#if !defined(__IBMCPP_DEFAULTED_AND_DELETED_FUNCTIONS)
+#  define BOOST_NO_CXX11_DELETED_FUNCTIONS
+#  define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
+#  define BOOST_NO_CXX11_NON_PUBLIC_DEFAULTED_FUNCTIONS
+#endif
+
+// -------------------------------------
+
+#if defined(__UU) || defined(__C99) || defined(__TR1)
+#  define BOOST_HAS_LOG1P
+#  define BOOST_HAS_EXPM1
+#endif
+
+#if defined(__C99) || defined(__TR1)
+#  define BOOST_HAS_STDINT_H
+#else
+#  define BOOST_NO_FENV_H
+#endif
+
+// -------------------------------------
+
+#define BOOST_HAS_NRVO
+
+#if !defined(__RTTI_ALL__)
+#  define BOOST_NO_RTTI
+#endif
+
+#if !defined(_CPPUNWIND) && !defined(__EXCEPTIONS)
+#  define BOOST_NO_EXCEPTIONS
+#endif
+
+#if defined(_LONG_LONG) || defined(__IBMCPP_C99_LONG_LONG) || defined(__LL)
+#  define BOOST_HAS_LONG_LONG
+#else
+#  define BOOST_NO_LONG_LONG
+#endif
+
+#if defined(_LONG_LONG) || defined(__IBMCPP_C99_LONG_LONG) || defined(__LL) || defined(_LP64)
+#  define BOOST_HAS_MS_INT64
+#endif
+
+#define BOOST_NO_SFINAE_EXPR
+#define BOOST_NO_CXX11_SFINAE_EXPR
+
+#if defined(__IBMCPP_VARIADIC_TEMPLATES)
+#  define BOOST_HAS_VARIADIC_TMPL
+#else
+#  define BOOST_NO_CXX11_VARIADIC_TEMPLATES
+#  define BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
+#endif
+
+#if defined(__IBMCPP_STATIC_ASSERT)
+#  define BOOST_HAS_STATIC_ASSERT
+#else
+#  define BOOST_NO_CXX11_STATIC_ASSERT
+#endif
+
+#if defined(__IBMCPP_RVALUE_REFERENCES)
+#  define BOOST_HAS_RVALUE_REFS
+#else
+#  define BOOST_NO_CXX11_RVALUE_REFERENCES
+#endif
+
+#if !defined(__IBMCPP_SCOPED_ENUM)
+#  define BOOST_NO_CXX11_SCOPED_ENUMS
+#endif
+
+#define BOOST_NO_CXX11_FIXED_LENGTH_VARIADIC_TEMPLATE_EXPANSION_PACKS
+#define BOOST_NO_CXX11_TEMPLATE_ALIASES
+#define BOOST_NO_CXX11_LOCAL_CLASS_TEMPLATE_PARAMETERS
+
+#if !defined(__IBMCPP_EXPLICIT_CONVERSION_OPERATORS)
+#  define BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+#endif
+
+#if !defined(__IBMCPP_DECLTYPE)
+#  define BOOST_NO_CXX11_DECLTYPE
+#else
+#  define BOOST_HAS_DECLTYPE
+#endif
+#define BOOST_NO_CXX11_DECLTYPE_N3276
+
+#if !defined(__IBMCPP_INLINE_NAMESPACE)
+#  define BOOST_NO_CXX11_INLINE_NAMESPACES
+#endif
+
+#if !defined(__IBMCPP_AUTO_TYPEDEDUCTION)
+#  define BOOST_NO_CXX11_AUTO_MULTIDECLARATIONS
+#  define BOOST_NO_CXX11_AUTO_DECLARATIONS
+#  define BOOST_NO_CXX11_TRAILING_RESULT_TYPES
+#endif
+
+#if !defined(__IBM_CHAR32_T__)
+#  define BOOST_NO_CXX11_CHAR32_T
+#endif
+#if !defined(__IBM_CHAR16_T__)
+#  define BOOST_NO_CXX11_CHAR16_T
+#endif
+
+#if !defined(__IBMCPP_CONSTEXPR)
+#  define BOOST_NO_CXX11_CONSTEXPR
+#endif
+
+#define BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#define BOOST_NO_CXX11_UNICODE_LITERALS
+#define BOOST_NO_CXX11_RAW_LITERALS
+#define BOOST_NO_CXX11_RANGE_BASED_FOR
+#define BOOST_NO_CXX11_NULLPTR
+#define BOOST_NO_CXX11_NOEXCEPT
+#define BOOST_NO_CXX11_LAMBDAS
+#define BOOST_NO_CXX11_USER_DEFINED_LITERALS
+#define BOOST_NO_CXX11_THREAD_LOCAL
+#define BOOST_NO_CXX11_REF_QUALIFIERS
+#define BOOST_NO_CXX11_FINAL
+#define BOOST_NO_CXX11_ALIGNAS
+#define BOOST_NO_CXX11_UNRESTRICTED_UNION
+#define BOOST_NO_CXX14_VARIABLE_TEMPLATES
+#define BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION
+#define BOOST_NO_CXX14_AGGREGATE_NSDMI
+#define BOOST_NO_CXX14_INITIALIZED_LAMBDA_CAPTURES
+#define BOOST_NO_CXX14_GENERIC_LAMBDAS
+#define BOOST_NO_CXX14_DIGIT_SEPARATORS
+#define BOOST_NO_CXX14_DECLTYPE_AUTO
+#define BOOST_NO_CXX14_CONSTEXPR
+#define BOOST_NO_CXX14_BINARY_LITERALS
+#define BOOST_NO_CXX17_STRUCTURED_BINDINGS
+#define BOOST_NO_CXX17_INLINE_VARIABLES
+#define BOOST_NO_CXX17_FOLD_EXPRESSIONS
+#define BOOST_NO_CXX17_IF_CONSTEXPR
+
+// -------------------------------------
+
+#if defined(__IBM_ATTRIBUTES)
+#  define BOOST_FORCEINLINE inline __attribute__ ((__always_inline__))
+#  define BOOST_NOINLINE __attribute__ ((__noinline__))
+#  define BOOST_MAY_ALIAS __attribute__((__may_alias__))
+// No BOOST_ALIGNMENT - explicit alignment support is broken (V2R1).
+#endif
+
+extern "builtin" long __builtin_expect(long, long);
+
+#define BOOST_LIKELY(x) __builtin_expect((x) && true, 1)
+#define BOOST_UNLIKELY(x) __builtin_expect((x) && true, 0)
--- a/oss/boost/boost_1_73_0/boost/config/detail/posix_features.hpp
+++ b/oss/boost/boost_1_73_0/boost/config/detail/posix_features.hpp
@@ -0,0 +1,95 @@
+//  (C) Copyright John Maddock 2001 - 2003. 
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+
+//  See http://www.boost.org for most recent version.
+
+// All POSIX feature tests go in this file,
+// Note that we test _POSIX_C_SOURCE and _XOPEN_SOURCE as well
+// _POSIX_VERSION and _XOPEN_VERSION: on some systems POSIX API's
+// may be present but none-functional unless _POSIX_C_SOURCE and
+// _XOPEN_SOURCE have been defined to the right value (it's up
+// to the user to do this *before* including any header, although
+// in most cases the compiler will do this for you).
+
+#  if defined(BOOST_HAS_UNISTD_H)
+#     include <unistd.h>
+
+      // XOpen has <nl_types.h>, but is this the correct version check?
+#     if defined(_XOPEN_VERSION) && (_XOPEN_VERSION >= 3)
+#        define BOOST_HAS_NL_TYPES_H
+#     endif
+
+      // POSIX version 6 requires <stdint.h>
+#     if defined(_POSIX_VERSION) && (_POSIX_VERSION >= 200100)
+#        define BOOST_HAS_STDINT_H
+#     endif
+
+      // POSIX version 2 requires <dirent.h>
+#     if defined(_POSIX_VERSION) && (_POSIX_VERSION >= 199009L)
+#        define BOOST_HAS_DIRENT_H
+#     endif
+
+      // POSIX version 3 requires <signal.h> to have sigaction:
+#     if defined(_POSIX_VERSION) && (_POSIX_VERSION >= 199506L)
+#        define BOOST_HAS_SIGACTION
+#     endif
+      // POSIX defines _POSIX_THREADS > 0 for pthread support,
+      // however some platforms define _POSIX_THREADS without
+      // a value, hence the (_POSIX_THREADS+0 >= 0) check.
+      // Strictly speaking this may catch platforms with a
+      // non-functioning stub <pthreads.h>, but such occurrences should
+      // occur very rarely if at all.
+#     if defined(_POSIX_THREADS) && (_POSIX_THREADS+0 >= 0) && !defined(BOOST_HAS_WINTHREADS) && !defined(BOOST_HAS_MPTASKS)
+#        define BOOST_HAS_PTHREADS
+#     endif
+
+      // BOOST_HAS_NANOSLEEP:
+      // This is predicated on _POSIX_TIMERS or _XOPEN_REALTIME:
+#     if (defined(_POSIX_TIMERS) && (_POSIX_TIMERS+0 >= 0)) \
+             || (defined(_XOPEN_REALTIME) && (_XOPEN_REALTIME+0 >= 0))
+#        define BOOST_HAS_NANOSLEEP
+#     endif
+
+      // BOOST_HAS_CLOCK_GETTIME:
+      // This is predicated on _POSIX_TIMERS (also on _XOPEN_REALTIME
+      // but at least one platform - linux - defines that flag without
+      // defining clock_gettime):
+#     if (defined(_POSIX_TIMERS) && (_POSIX_TIMERS+0 >= 0))
+#        define BOOST_HAS_CLOCK_GETTIME
+#     endif
+
+      // BOOST_HAS_SCHED_YIELD:
+      // This is predicated on _POSIX_PRIORITY_SCHEDULING or
+      // on _POSIX_THREAD_PRIORITY_SCHEDULING or on _XOPEN_REALTIME.
+#     if defined(_POSIX_PRIORITY_SCHEDULING) && (_POSIX_PRIORITY_SCHEDULING+0 > 0)\
+            || (defined(_POSIX_THREAD_PRIORITY_SCHEDULING) && (_POSIX_THREAD_PRIORITY_SCHEDULING+0 > 0))\
+            || (defined(_XOPEN_REALTIME) && (_XOPEN_REALTIME+0 >= 0))
+#        define BOOST_HAS_SCHED_YIELD
+#     endif
+
+      // BOOST_HAS_GETTIMEOFDAY:
+      // BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE:
+      // These are predicated on _XOPEN_VERSION, and appears to be first released
+      // in issue 4, version 2 (_XOPEN_VERSION > 500).
+      // Likewise for the functions log1p and expm1.
+#     if defined(_XOPEN_VERSION) && (_XOPEN_VERSION+0 >= 500)
+#        define BOOST_HAS_GETTIMEOFDAY
+#        if defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE+0 >= 500)
+#           define BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE
+#        endif
+#        ifndef BOOST_HAS_LOG1P
+#           define BOOST_HAS_LOG1P
+#        endif
+#        ifndef BOOST_HAS_EXPM1
+#           define BOOST_HAS_EXPM1
+#        endif
+#     endif
+
+#  endif
+
+
+
+
--- a/Show More
+++ b/Show More