cmake HAVE__WRITEEFLAGS_MSVC examples

TheAssemblyArmada/Thyme deps/baseconfig/cmake/CheckIntrinsics.cmake :77 

check_c_source_compiles("
            #include <intrin.h>
            int main() {
                unsigned tmp = 0x00200000;
                __writeeflags(tmp);      
                return 0;
            }" HAVE__WRITEEFLAGS_MSVC)