From 33c63b19ab4f192f95c72735d810ef3921370d1f Mon Sep 17 00:00:00 2001
From: Ben Boeckel <ben.boeckel@kitware.com>
Date: Wed, 22 Sep 2010 12:42:49 -0400
Subject: [PATCH] Add a method to put a watch for variables

---
 Source/cmake.cxx | 13 +++++++++----
 Source/cmake.h   |  1 +
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/Source/cmake.cxx b/Source/cmake.cxx
index 007f52dc7..cb68f2212 100644
--- a/Source/cmake.cxx
+++ b/Source/cmake.cxx
@@ -380,10 +380,7 @@ bool cmake::SetCacheArgs(const std::vector<std::string>& args)
           "No help, variable specified on the command line.", type);
         if(this->WarnUnusedCli)
           {
-#ifdef CMAKE_BUILD_WITH_CMAKE
-          this->VariableWatch->AddWatch(var, cmWarnUnusedCliWarning, this);
-          this->UsedCliVariables[var] = false;
-#endif
+          this->WatchUnusedCli(var.c_str());
           }
         }
       else
@@ -4488,6 +4485,14 @@ int cmake::Build(const std::string& dir,
                     0, nativeOptions);
 }
 
+void cmake::WatchUnusedCli(const char* var)
+{
+#ifdef CMAKE_BUILD_WITH_CMAKE
+  this->VariableWatch->AddWatch(var, cmWarnUnusedCliWarning, this);
+  this->UsedCliVariables[var] = false;
+#endif
+}
+
 void cmake::RunCheckForUnusedVariables() const
 {
 #ifdef CMAKE_BUILD_WITH_CMAKE
diff --git a/Source/cmake.h b/Source/cmake.h
index 4277bdd01..72effd38d 100644
--- a/Source/cmake.h
+++ b/Source/cmake.h
@@ -363,6 +363,7 @@ class cmake
             const std::vector<std::string>& nativeOptions,
             bool clean);
 
+  void WatchUnusedCli(const char* var);
   void RunCheckForUnusedVariables() const;
 protected:
   void InitializeProperties();