check_c_source_compiles("
#ifdef _XBOX
#include <xtl.h>
#else
#include <windows.h>
#include <mmsystem.h>
#endif

int
main(int argc, char *argv[])
{
	DWORD t0;
#ifndef _XBOX
	timeBeginPeriod(1);
#endif
	t0 = timeGetTime();
	Sleep(1);
	return (t0 != 0) ? 0 : 1;
}
" HAVE_CLOCK_WIN32)