$OpenBSD: patch-bzrlib_diff_py,v 1.4 2011/01/10 20:18:09 eric Exp $
--- bzrlib/diff.py.orig	Mon Dec  6 17:51:40 2010
+++ bzrlib/diff.py	Mon Dec  6 17:51:33 2010
@@ -189,7 +189,7 @@ def external_diff(old_filename, oldlines, new_filename
             # Since we are dealing with an ANSI api, use mbcs encoding
             old_filename = old_filename.encode('mbcs')
             new_filename = new_filename.encode('mbcs')
-        diffcmd = ['diff',
+        diffcmd = ['gdiff',
                    '--label', old_filename,
                    old_abspath,
                    '--label', new_filename,