gcc-izm removed
diff --git a/skeletons/asn_system.h b/skeletons/asn_system.h
index d7ebdaa..6dcca0e 100644
--- a/skeletons/asn_system.h
+++ b/skeletons/asn_system.h
@@ -82,10 +82,16 @@
#ifndef GCC_PRINTFLIKE
#define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
#endif
+#ifndef GCC_NOTUSED
+#define GCC_NOTUSED __attribute__((unused))
+#endif
#else
#ifndef GCC_PRINTFLIKE
#define GCC_PRINTFLIKE(fmt,var) /* nothing */
#endif
+#ifndef GCC_NOTUSED
+#define GCC_NOTUSED
+#endif
#endif
#ifndef offsetof /* If not defined by <stddef.h> */