WIN32 to _WIN32 for Compiler portability
_WIN32 is the standard according to the official documentation from Microsoft and also this fixes MinGW compile error.
#include <string>
#include <assert.h>
#include <time.h>
-#ifndef WIN32
+#ifndef _WIN32
#include <sys/times.h>
-#endif // WIN32
+#endif // _WIN32
#ifndef ILM_IMF_TEST_IMAGEDIR
#define ILM_IMF_TEST_IMAGEDIR
