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-rw-r--r--includes/Rts.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/includes/Rts.h b/includes/Rts.h
index 753a66436b..1bfb37a1bf 100644
--- a/includes/Rts.h
+++ b/includes/Rts.h
@@ -65,6 +65,12 @@ extern "C" {
#define END_RTS_PRIVATE /* disabled: END_RTS_PRIVATE */
#endif
+#if __GNUC__ > 4
+#define RTS_UNLIKELY(p) __builtin_expect((p),0)
+#else
+#define RTS_UNLIKELY(p) p
+#endif
+
/* Fix for mingw stat problem (done here so it's early enough) */
#ifdef mingw32_HOST_OS
#define __MSVCRT__ 1