# - Check whether the C compiler supports a given flag. # CHECK_C_COMPILER_FLAG(FLAG VARIABLE) # # FLAG - the compiler flag # VARIABLE - variable to store the result # 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) MACRO (CHECK_C_COMPILER_FLAG _FLAG _RESULT) SET(SAFE_CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS}") SET(CMAKE_REQUIRED_DEFINITIONS "${_FLAG}") CHECK_C_SOURCE_COMPILES("int main() { return 0;}" ${_RESULT}) SET (CMAKE_REQUIRED_DEFINITIONS "${SAFE_CMAKE_REQUIRED_DEFINITIONS}") ENDMACRO (CHECK_C_COMPILER_FLAG)