cmake HAVE__READEFLAGS_GCC examples

TheAssemblyArmada/Thyme deps/baseconfig/cmake/CheckIntrinsics.cmake :19 

check_c_source_compiles("
        #include <x86intrin.h>
        int main() {
            return __readeflags();
        }" HAVE__READEFLAGS_GCC)

TheAssemblyArmada/Chronoshift cmake/modules/CheckIntrinsics.cmake :21 

check_c_source_compiles("
    #include <x86intrin.h>
    int main() {
        return __readeflags();
    }" HAVE__READEFLAGS_GCC)