--- /dev/null
+#ifndef _MACHTIME_H_
+#define _MACHTIME_H_
+
+#if defined(__rtems__)
+#define _CLOCKS_PER_SEC_ sysconf(_SC_CLK_TCK)
+#else /* !__rtems__ */
+#if defined(__arm__) || defined(__thumb__)
+#define _CLOCKS_PER_SEC_ 100
+#endif
+#endif /* !__rtems__ */
+
+#ifdef __SPU__
+#include <sys/types.h>
+int nanosleep (const struct timespec *, struct timespec *);
+#endif
+
+#endif /* _MACHTIME_H_ */
+
+