mtime: Make nanosleep a bit more cancelable than what it is on osx.

src/misc/mtime.c

@@ -366,6 +366,20 @@ void mwait( mtime_t date )
 #include "libvlc.h" /* vlc_backtrace() */
 #undef msleep
 
+#if defined(__APPLE__) && defined( HAVE_NANOSLEEP )
+/* Mac OS X 10.5's nanosleep is not a cancellation point */
+static inline int
+semi_testcancelable_nanosleep(const struct timespec *rqtp, struct timespec *rmtp)
+{
+    int ret;
+    pthread_testcancel();
+    ret = nanosleep(rqtp, rmtp);
+    pthread_testcancel();
+    return ret;
+}
+#define nanosleep semi_testcancelable_nanosleep
+#endif
+
 /**
  * Portable usleep(). Cancellation point.
  *