disable attribute hacks on older gccs

diff --git a/include/system.h b/include/system.h
index a06401ea34892cd625d4f03df02daf71779640d2..256430236cbb1615a0e992b9cd4b8266623b1e4b 100644 (file)
--- a/include/system.h
+++ b/include/system.h
@@ -63,7 +63,7 @@
 #define FLEX_ARRAY 1
 #endif
 
-#ifdef __GNUC__
+#if defined(__GNUC__) && (__GNUC__ >= 4)
 
 /* gcc has hew positive aspects too */
 #define _MUSTCHECK             __attribute__((warn_unused_result))