1 files changed, 8 insertions, 0 deletions
diff --git a/make.c b/make.c
index 0b3837f..ec48e23 100644
--- a/make.c
+++ b/make.c
@@ -31,6 +31,14 @@ static char *cflags_all[] = {
 #if __GLIBC__
 	"-D_GNU_SOURCE",
 #endif
+#if __GNUC__
+	"-Dlikely(x)=__builtin_expect(!!(x), 1)",
+	"-Dunlikely(x)=__builtin_expect(!!(x), 0)",
+#else
+	"-D__attribute__(x)=",
+	"-Dlikely(x)=(x)",
+	"-Dunlikely(x)=(x)",
+#endif
 };
 
 static char *cflags_dbg[] = {