Define unlikely() only for GCC

Some compilers probably don't know __builtin_expect

1 files changed, 5 insertions, 2 deletions

diff --git a/inotail.h b/inotail.h
index f6e90e8..b47e6a4 100644
--- a/inotail.h
+++ b/inotail.h
@@ -24,7 +24,10 @@ struct file_struct {
 # define dprintf(fmt, args...)
 #endif /* DEBUG */
 
-/* Taken from linux kernel source tree */
-#define unlikely(x) __builtin_expect(!!(x), 0)
+#ifdef __GNUC__
+# define unlikely(x) __builtin_expect(!!(x), 0)	/* Taken from linux kernel source */
+#else
+# define unlikely(x) (x)
+#endif
 
 #endif /* _INOTAIL_H */