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MY_CHECK_AND_SET_COMPILER_FLAG changes

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* watch for "redefined macro" warning
* don't enable -D_FORTIFY_SOURCE=2 in debug builds (it requires -O)
This commit is contained in:
Alexey Botchkov
2015-03-11 13:05:03 +04:00
parent 190858d996
commit 52a1b5a8c2
2 changed files with 2 additions and 7 deletions
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8
CMakeLists.txt
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@ -206,13 +206,7 @@ IF(SECURITY_HARDENED)
MY_CHECK_AND_SET_COMPILER_FLAG("-pie -fPIC")
MY_CHECK_AND_SET_COMPILER_FLAG("-Wl,-z,relro,-z,now")
MY_CHECK_AND_SET_COMPILER_FLAG("-fstack-protector --param=ssp-buffer-size=4")
# sometimes _FORTIFY_SOURCE is predefined
INCLUDE(CheckSymbolExists)
CHECK_SYMBOL_EXISTS(_FORTIFY_SOURCE "" HAVE_FORTIFY_SOURCE)
IF(NOT HAVE_FORTIFY_SOURCE)
ADD_DEFINITIONS(-D_FORTIFY_SOURCE=2)
ENDIF()
MY_CHECK_AND_SET_COMPILER_FLAG("-D_FORTIFY_SOURCE=2" RELEASE RELWITHDEBINFO)
ENDIF()
OPTION(ENABLE_DEBUG_SYNC "Enable debug sync (debug builds only)" ON)

1
cmake/check_compiler_flag.cmake
View File

@ -9,6 +9,7 @@ SET(fail_patterns
FAIL_REGEX "unrecognized .*option"
FAIL_REGEX "ignoring unknown option"
FAIL_REGEX "warning:.*ignored"
FAIL_REGEX "warning:.*redefined"
FAIL_REGEX "[Ww]arning: [Oo]ption"
)