From e4048118dea476a018d1944771e0c95b8805ec21 Mon Sep 17 00:00:00 2001
From: Bill Hoffman <bill.hoffman@kitware.com>
Date: Sun, 18 Jan 2009 12:05:45 -0500
Subject: BUG: fix crash with empty properties

---
 Source/cmMakefile.cxx | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index c9a9238..92d5938 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -2915,7 +2915,10 @@ void cmMakefile::SetProperty(const char* prop, const char* value)
   if ( propname == "INCLUDE_DIRECTORIES" )
     {
     std::vector<std::string> varArgsExpanded;
-    cmSystemTools::ExpandListArgument(value, varArgsExpanded);
+    if(value)
+      {
+      cmSystemTools::ExpandListArgument(value, varArgsExpanded);
+      }
     this->SetIncludeDirectories(varArgsExpanded);
     return;
     }
@@ -2923,7 +2926,10 @@ void cmMakefile::SetProperty(const char* prop, const char* value)
   if ( propname == "LINK_DIRECTORIES" )
     {
     std::vector<std::string> varArgsExpanded;
-    cmSystemTools::ExpandListArgument(value, varArgsExpanded);
+    if(value)
+      {
+      cmSystemTools::ExpandListArgument(value, varArgsExpanded);
+      }
     this->SetLinkDirectories(varArgsExpanded);
     return;
     }
-- 
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