diff --git a/lib/roken/roken-common.h b/lib/roken/roken-common.h
index 099f11314..be66046fa 100644
--- a/lib/roken/roken-common.h
+++ b/lib/roken/roken-common.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1995 - 2001 Kungliga Tekniska Högskolan
+ * Copyright (c) 1995 - 2002 Kungliga Tekniska Högskolan
  * (Royal Institute of Technology, Stockholm, Sweden).
  * All rights reserved.
  * 
@@ -252,7 +252,7 @@
 
 ROKEN_CPP_START
 
-#if IRIX != 4 /* fix for compiler bug */
+#ifndef(IRIX4) /* fix for compiler bug */
 #ifdef RETSIGTYPE
 typedef RETSIGTYPE (*SigAction)(int);
 SigAction signal(int iSig, SigAction pAction); /* BSD compatible */