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