diff --git a/gtk+/gtkglextmm/gtkglextmm.conf b/gtk+/gtkglextmm/gtkglextmm.conf
index 2f1fe4dc0..8088fd297 100644
--- a/gtk+/gtkglextmm/gtkglextmm.conf
+++ b/gtk+/gtkglextmm/gtkglextmm.conf
@@ -2,6 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../gtkglextmm/gtkglextmm.conf
+# Copyright (C) 2011 The OpenSDE Project
 # Copyright (C) 2006 The T2 SDE Project
 #
 # More information can be found in the files COPYING and README.
@@ -13,3 +14,6 @@
 # --- SDE-COPYRIGHT-NOTE-END ---
 
 var_append confopt ' ' "--disable-gtkglext-test"
+
+# avoid error: 'GdkSpanFunc' has not been declared
+var_append GCC_WRAPPER_REMOVE ' ' '-D*DISABLE_DEPRECATED'