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build: fix building on Windows due to _FORTIFY_SOURCE changes in MSYS2

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Also, enable other hardening options that work on Windows with GCC 9.x
This commit is contained in:
iDunk5400 2019-10-24 21:35:20 +02:00
parent 81f6c3745e
commit 3816ac24f0
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GPG key ID: 0F1715596D812FD8
1 changed files with 6 additions and 4 deletions
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10
CMakeLists.txt
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@ -620,7 +620,7 @@ else()
add_cxx_flag_if_supported(-Wformat-security CXX_SECURITY_FLAGS)
# -fstack-protector
if (NOT WIN32 AND NOT OPENBSD)
if (NOT OPENBSD AND NOT (WIN32 AND (CMAKE_C_COMPILER_ID STREQUAL "GNU" AND CMAKE_C_COMPILER_VERSION VERSION_LESS 9.1)))
add_c_flag_if_supported(-fstack-protector C_SECURITY_FLAGS)
add_cxx_flag_if_supported(-fstack-protector CXX_SECURITY_FLAGS)
add_c_flag_if_supported(-fstack-protector-strong C_SECURITY_FLAGS)
@ -628,9 +628,11 @@ else()
endif()
# New in GCC 8.2
if (NOT WIN32 AND NOT OPENBSD)
if (NOT OPENBSD AND NOT (WIN32 AND (CMAKE_C_COMPILER_ID STREQUAL "GNU" AND CMAKE_C_COMPILER_VERSION VERSION_LESS 9.1)))
add_c_flag_if_supported(-fcf-protection=full C_SECURITY_FLAGS)
add_cxx_flag_if_supported(-fcf-protection=full CXX_SECURITY_FLAGS)
endif()
if (NOT WIN32 AND NOT OPENBSD)
add_c_flag_if_supported(-fstack-clash-protection C_SECURITY_FLAGS)
add_cxx_flag_if_supported(-fstack-clash-protection CXX_SECURITY_FLAGS)
endif()
@ -642,8 +644,8 @@ else()
endif()
# linker
if (NOT WIN32)
# Windows binaries die on startup with PIE
if (NOT (WIN32 AND (CMAKE_C_COMPILER_ID STREQUAL "GNU" AND CMAKE_C_COMPILER_VERSION VERSION_LESS 9.1)))
# Windows binaries die on startup with PIE when compiled with GCC <9.x
add_linker_flag_if_supported(-pie LD_SECURITY_FLAGS)
endif()
add_linker_flag_if_supported(-Wl,-z,relro LD_SECURITY_FLAGS)