X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fcompiler.h;h=6bf514456fbde230ec0c9e5861c90a324275224b;hb=da54975c9d79313ba27d80ee8901eee160653e3a;hp=502a48cd16c0e39693db32a5bec87a9cf99247b3;hpb=381328fe36480b63a73cd5b164047e27622e772f;p=openvswitch

diff --git a/lib/compiler.h b/lib/compiler.h
index 502a48cd..6bf51445 100644
--- a/lib/compiler.h
+++ b/lib/compiler.h
@@ -17,13 +17,22 @@
 #ifndef COMPILER_H
 #define COMPILER_H 1
 
+#ifdef __GNUC__
 #define NO_RETURN __attribute__((__noreturn__))
 #define OVS_UNUSED __attribute__((__unused__))
 #define PRINTF_FORMAT(FMT, ARG1) __attribute__((__format__(printf, FMT, ARG1)))
 #define STRFTIME_FORMAT(FMT) __attribute__((__format__(__strftime__, FMT, 0)))
 #define MALLOC_LIKE __attribute__((__malloc__))
 #define ALWAYS_INLINE __attribute__((always_inline))
-#define likely(x) __builtin_expect((x),1)
-#define unlikely(x) __builtin_expect((x),0)
+#define WARN_UNUSED_RESULT __attribute__((__warn_unused_result__))
+#else
+#define NO_RETURN
+#define OVS_UNUSED
+#define PRINTF_FORMAT(FMT, ARG1)
+#define STRFTIME_FORMAT(FMT)
+#define MALLOC_LIKE
+#define ALWAYS_INLINE
+#define WARN_UNUSED_RESULT
+#endif
 
 #endif /* compiler.h */