From aa29bbc3260453959b65104881e9b1e18d278700 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Wed, 18 Sep 2002 10:39:41 -0400
Subject: [PATCH] ENH: Added RemoveDefinition method.

---
 Source/cmMakefile.cxx | 5 +++++
 Source/cmMakefile.h   | 6 ++++++
 2 files changed, 11 insertions(+)

diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index f1d706ec9..ec8871b32 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -586,6 +586,11 @@ void cmMakefile::AddCacheDefinition(const char* name, bool value, const char* do
   this->AddDefinition(name, value);
 }
 
+void cmMakefile::RemoveDefinition(const char* name)
+{
+  m_Definitions.erase(DefinitionMap::key_type(name));
+}
+
 void cmMakefile::SetProjectName(const char* p)
 {
   m_ProjectName = p;
diff --git a/Source/cmMakefile.h b/Source/cmMakefile.h
index ae5704cd4..c14a4e3ce 100644
--- a/Source/cmMakefile.h
+++ b/Source/cmMakefile.h
@@ -199,6 +199,12 @@ public:
   ///! Add a definition to this makefile and the global cmake cache.
   void AddCacheDefinition(const char* name, bool, const char* doc);
 
+  /**
+   * Remove a variable definition from the build.  This is not valid
+   * for cache entries, and will only affect the current makefile.
+   */
+  void RemoveDefinition(const char* name);
+  
   /**
    * Specify the name of the project for this build.
    */