From 6a2174ff9da95fa52f455ef81ff5785bf312fda9 Mon Sep 17 00:00:00 2001
From: Andy Cedilnik <andy.cedilnik@kitware.com>
Date: Thu, 12 Sep 2002 11:12:31 -0400
Subject: Add more error checking

---
 Source/cmCacheManager.cxx | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/Source/cmCacheManager.cxx b/Source/cmCacheManager.cxx
index 7412681..73017b4 100644
--- a/Source/cmCacheManager.cxx
+++ b/Source/cmCacheManager.cxx
@@ -410,7 +410,15 @@ bool cmCacheManager::SaveCache(const char* path)
       std::string key;
       std::string rkey = i.GetName();
       std::string helpstring;
-      helpstring = i.GetProperty("HELPSTRING");
+      const char* hs = i.GetProperty("HELPSTRING")
+      if ( hs )
+        {
+        helpstring = i.GetProperty("HELPSTRING");
+        }
+      else
+        {
+        helpstring = "";
+        }
       cmCacheManager::OutputHelpString(fout, helpstring.c_str());
       // support : in key name by double quoting 
       if(rkey.find(':') != std::string::npos ||
-- 
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