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NotTsunami f706f28322 cmake/configure.ac: Enable -fstack-protector-strong by default

This commit contains the following changes:

- Drops -fstack-protector in favor of -fstack-protector-strong.
  Consequently, the ssp-buffer-size parameter has been removed as
  -fstack-protector-strong ignores array size.

- Add new global opt-out for stack smash protection. This is enabled
  by default for both autotools and CMake builds. Users can opt out
  of stack smash protection by passing -DWITH_STACK_PROTECTOR=OFF to
  CMake or --disable-stack-smash-protection when running ./configure.

- Renames HAVE_SSP_FLAG to HAVE_STACK_PROTECTOR_FLAG in
  CMakeLists.txt to be more readable.

2019-11-20 17:12:03 +11:00

add_cflags.m4

configure.ac : Add hardening compile options.

2013-03-06 07:39:24 +11:00

add_cxxflags.m4

configure.ac : Add hardening compile options.

2013-03-06 07:39:24 +11:00

ax_add_fortify_source.m4

configure.ac: Clean up CFLAGS code

2017-02-06 19:54:15 +11:00

ax_check_enable_debug.m4

Do not override CFLAGS, as CFLAGS is a user flag.