From ab079ee6822c4ab151b0df8f9a529088607d3629 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Tue, 12 Mar 2013 17:25:59 -0400
Subject: Avoid crash when checking property compatibility without link info

Teach the compatibility check added by commit 042ecf04 (Add API to
calculate link-interface-dependent bool properties or error, 2013-01-06)
to return early if no link information is available.  This avoids
crashing in a case that should fail with an error message.
---
 Source/cmTarget.cxx | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Source/cmTarget.cxx b/Source/cmTarget.cxx
index c8f532e..07da31f 100644
--- a/Source/cmTarget.cxx
+++ b/Source/cmTarget.cxx
@@ -4699,6 +4699,10 @@ PropertyType checkInterfacePropertyCompatibility(cmTarget *tgt,
       || (!impliedByUse && !explicitlySet));
 
   cmComputeLinkInformation *info = tgt->GetLinkInformation(config);
+  if(!info)
+    {
+    return propContent;
+    }
   const cmComputeLinkInformation::ItemVector &deps = info->GetItems();
   bool propInitialized = explicitlySet;
 
-- 
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