diacanvas: changed to disable python support as it cannot generate proper bindings

gnome2/diacanvas/diacanvas.conf

@@ -2,6 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../diacanvas/diacanvas.conf
+# Copyright (C) 2011 The OpenSDE Project
 # Copyright (C) 2004 - 2006 The T2 SDE Project
 #
 # More information can be found in the files COPYING and README.
@@ -13,3 +14,6 @@
 # --- SDE-COPYRIGHT-NOTE-END ---
 
 configprefix=xvfb-run
+
+# disable python support as it cannot generate proper bindings
+var_append extraconfopt ' ' "--enable-python=no"