From 22fca8aa12bb8308cb930d45bff0449163dc70ac Mon Sep 17 00:00:00 2001
From: Bill Hoffman <bill.hoffman@kitware.com>
Date: Fri, 12 Oct 2007 09:58:17 -0400
Subject: BUG: fix for bug 0005767 hang for replace string with empty

---
 Source/kwsys/SystemTools.cxx | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Source/kwsys/SystemTools.cxx b/Source/kwsys/SystemTools.cxx
index e878185..c2ded8c 100644
--- a/Source/kwsys/SystemTools.cxx
+++ b/Source/kwsys/SystemTools.cxx
@@ -455,6 +455,11 @@ void SystemTools::ReplaceString(kwsys_stl::string& source,
 
   // perform replacements until done
   size_t replaceSize = strlen(replace);
+  // do while hangs if replaceSize is 0
+  if(replaceSize == 0)
+    {
+    return;
+    }
   char *orig = strdup(src);
   char *currentPos = orig;
   searchPos = searchPos - src + orig;
-- 
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