From 89c25443a62de7a06fc0daa9f552a70aa9692aa0 Mon Sep 17 00:00:00 2001
From: Ben Boeckel <ben.boeckel@kitware.com>
Date: Mon, 3 Jan 2011 08:47:04 -0500
Subject: Checking for a definition is a usage

---
 Source/cmMakefile.cxx | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index 0913e0a..7044049 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -2176,6 +2176,7 @@ const char* cmMakefile::GetRequiredDefinition(const char* name) const
 bool cmMakefile::IsDefinitionSet(const char* name) const
 {
   const char* def = this->Internal->VarStack.top().Get(name);
+  this->Internal->VarUsageStack.top().insert(name);
   if(!def)
     {
     def = this->GetCacheManager()->GetCacheValue(name);
-- 
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