diff --git a/include/osg/GL b/include/osg/GL
index 1f387c624..434468fa9 100644
--- a/include/osg/GL
+++ b/include/osg/GL
@@ -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