--- deldiff.vim.orig	2006-02-11 20:23:09 +0500

+++ deldiff.vim	2007-02-22 22:57:23 +0500

@@ -28,6 +28,11 @@

 " deleted too

 " 

+if !exists("use_deldiff_plugin")

+    finish

+endif

+

+

 function! DelDiffBlock()

   " search backward

   let start_line = line ( '.' )