From 6d0845f2f8ac5a3f362428c0a61f3e27d9c7e5e4 Mon Sep 17 00:00:00 2001
From: Bill Hoffman <bill.hoffman@kitware.com>
Date: Sat, 22 Mar 2008 10:24:06 -0400
Subject: [PATCH] ENH: make sure -Wno-dev sticks so make rebuild_cache will
 work

---
 Source/cmake.cxx | 37 +++++++++++++++++++++----------------
 Source/cmake.h   |  1 +
 2 files changed, 22 insertions(+), 16 deletions(-)

diff --git a/Source/cmake.cxx b/Source/cmake.cxx
index b045f1c4a..88f1290b5 100644
--- a/Source/cmake.cxx
+++ b/Source/cmake.cxx
@@ -141,6 +141,7 @@ void cmNeedBackwardsCompatibility(const std::string& variable,
 cmake::cmake()
 {
   this->SuppressDevWarnings = false;
+  this->DoSuppressDevWarnings = false;
   this->DebugOutput = false;
   this->DebugTryCompile = false;
   this->ClearBuildSystem = false;
@@ -387,10 +388,12 @@ bool cmake::SetCacheArgs(const std::vector<std::string>& args)
     else if(arg.find("-Wno-dev",0) == 0)
       {
       this->SuppressDevWarnings = true;
+      this->DoSuppressDevWarnings = true;
       }
     else if(arg.find("-Wdev",0) == 0)
-      {
+      { 
       this->SuppressDevWarnings = false;
+      this->DoSuppressDevWarnings = true;
       }
     else if(arg.find("-U",0) == 0)
       {
@@ -1896,23 +1899,25 @@ int cmake::HandleDeleteCacheVariables(const char* var)
 
 int cmake::Configure()
 {
-  if(this->SuppressDevWarnings)
+  if(this->DoSuppressDevWarnings)
     {
-    this->CacheManager->
-      AddCacheEntry("CMAKE_SUPPRESS_DEVELOPER_WARNINGS", "TRUE",
-                    "Suppress Warnings that are meant for"
-                    " the author of the CMakeLists.txt files.",
-                    cmCacheManager::INTERNAL);
+    if(this->SuppressDevWarnings)
+      {
+      this->CacheManager->
+        AddCacheEntry("CMAKE_SUPPRESS_DEVELOPER_WARNINGS", "TRUE",
+                      "Suppress Warnings that are meant for"
+                      " the author of the CMakeLists.txt files.",
+                      cmCacheManager::INTERNAL);
+      }
+    else
+      {
+      this->CacheManager->
+        AddCacheEntry("CMAKE_SUPPRESS_DEVELOPER_WARNINGS", "FALSE",
+                      "Suppress Warnings that are meant for"
+                      " the author of the CMakeLists.txt files.",
+                      cmCacheManager::INTERNAL);
+      }
     }
-  else
-    {
-    this->CacheManager->
-      AddCacheEntry("CMAKE_SUPPRESS_DEVELOPER_WARNINGS", "FALSE",
-                    "Suppress Warnings that are meant for"
-                    " the author of the CMakeLists.txt files.",
-                    cmCacheManager::INTERNAL);
-    }
-
   int ret = this->ActualConfigure();
   const char* delCacheVars =
     this->GetProperty("__CMAKE_DELETE_CACHE_CHANGE_VARS_");
diff --git a/Source/cmake.h b/Source/cmake.h
index f599c319b..8134943dd 100644
--- a/Source/cmake.h
+++ b/Source/cmake.h
@@ -388,6 +388,7 @@ protected:
   std::string cmStartDirectory; 
   std::string StartOutputDirectory;
   bool SuppressDevWarnings;
+  bool DoSuppressDevWarnings;
   std::set<cmStdString> WrittenFiles;
 
   ///! return true if the same cmake was used to make the cache.