diff --git a/src/osg/GL.in b/src/osg/GL.in
index 5ade5ed3a..905740dc3 100644
--- a/src/osg/GL.in
+++ b/src/osg/GL.in
@@ -96,7 +96,7 @@
     #endif
 
     // XXX This is from Win32's <ctype.h>
-    #if !defined(_WCHAR_T_DEFINED) && !(defined(__GNUC__)&&((__GNUC__ == 3)||(__GNUC__ == 4)))
+    #if !defined(_WCHAR_T_DEFINED) && !(defined(__GNUC__)&&(__GNUC__ > 2))
         typedef unsigned short wchar_t;
         #define _WCHAR_T_DEFINED
     #endif