Add zstd.

3rdparty/zstd-1.5.0/build/cmake/contrib/gen_html/CMakeLists.txt

@@ -0,0 +1,30 @@
+# ################################################################
+# Copyright (c) 2015-present, Yann Collet, Facebook, Inc.
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# ################################################################
+
+project(gen_html)
+include(GetZstdLibraryVersion)
+
+set(CMAKE_INCLUDE_CURRENT_DIR TRUE)
+
+# Define programs directory, where sources and header files are located
+set(LIBRARY_DIR ${ZSTD_SOURCE_DIR}/lib)
+set(PROGRAMS_DIR ${ZSTD_SOURCE_DIR}/programs)
+set(GENHTML_DIR ${ZSTD_SOURCE_DIR}/contrib/gen_html)
+set(GENHTML_BINARY ${PROJECT_BINARY_DIR}/gen_html${CMAKE_EXECUTABLE_SUFFIX})
+include_directories(${PROGRAMS_DIR} ${LIBRARY_DIR} ${LIBRARY_DIR}/common ${GENHTML_DIR})
+
+add_executable(gen_html ${GENHTML_DIR}/gen_html.cpp)
+
+GetZstdLibraryVersion(${LIBRARY_DIR}/zstd.h VMAJOR VMINOR VRELEASE)
+set(LIBVERSION "${VMAJOR}.${VMINOR}.${VRELEASE}")
+add_custom_target(zstd_manual.html ALL
+                  ${GENHTML_BINARY} "${LIBVERSION}" "${LIBRARY_DIR}/zstd.h" "${PROJECT_BINARY_DIR}/zstd_manual.html"
+                  DEPENDS gen_html COMMENT "Update zstd manual")
+
+install(FILES "${PROJECT_BINARY_DIR}/zstd_manual.html" DESTINATION "${CMAKE_INSTALL_DOCDIR}")