diff -ru ../Glide3.orig/h5/incsrc/gdebug.h ./h5/incsrc/gdebug.h
--- ../Glide3.orig/h5/incsrc/gdebug.h	Sat Nov 18 08:00:33 2000
+++ ./h5/incsrc/gdebug.h	Sun Jan 13 16:20:49 2002
@@ -67,12 +67,21 @@
 #pragma disable_message (111, 201, 302)
 #endif /* defined(__WATCOMC__) || defined(__WATCOM_CPLUSPLUS__) */
 
+#ifdef __GNUC__
+# define GDBG_INFO(x...)
+# define GDBG_INFO_MORE(x...)
+# define GDBG_PRINTF(x...)
+
+# define GDBG_ERROR_SET_CALLBACK(x...)
+# define GDBG_ERROR_CLEAR_CALLBACK(x...)
+#else
 #define GDBG_INFO      0 && (unsigned long)
 #define GDBG_INFO_MORE 0 && (unsigned long)
 #define GDBG_PRINTF    0 && (unsigned long)
 
 #define GDBG_ERROR_SET_CALLBACK   0 && (unsigned long)
 #define GDBG_ERROR_CLEAR_CALLBACK 0 && (unsigned long)
+#endif
 
 #define GDBG_GET_DEBUGLEVEL(x) 0
 #define GDBG_SET_DEBUGLEVEL(a,b)