1 # - Check whether the C compiler supports a given flag in the
2 # context of a stack checking compiler option.
4 # CHECK_C_COMPILER_FLAG_SSP(FLAG VARIABLE)
6 # FLAG - the compiler flag
7 # VARIABLE - variable to store the result
9 # This actually calls check_c_source_compiles.
10 # See help for CheckCSourceCompiles for a listing of variables
11 # that can modify the build.
13 # Copyright (c) 2006, Alexander Neundorf, <neundorf@kde.org>
15 # Redistribution and use is allowed according to the terms of the BSD license.
16 # For details see the accompanying COPYING-CMAKE-SCRIPTS file.
19 include(CheckCSourceCompiles)
21 function(CHECK_C_COMPILER_FLAG_SSP _FLAG _RESULT)
22 set(SAFE_CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS}")
23 set(CMAKE_REQUIRED_DEFINITIONS "${_FLAG}")
24 check_c_source_compiles("int main(int argc, char **argv) { char buffer[256]; return buffer[argc]=0;}" ${_RESULT})
25 set(CMAKE_REQUIRED_DEFINITIONS "${SAFE_CMAKE_REQUIRED_DEFINITIONS}")
26 endfunction(CHECK_C_COMPILER_FLAG_SSP)