ENH: big change, only allow commands access to the cache via the cmMakefile class and GetDefinition, also the cmMakefile is the only way for commands to add to the cache. Also, some changes to configure.in that check for for scoping

1 files changed, 12 insertions, 1 deletions

diff --git a/Source/cmSystemTools.cxx b/Source/cmSystemTools.cxx
index 9755aca..bd2eb70 100644
--- a/Source/cmSystemTools.cxx
+++ b/Source/cmSystemTools.cxx
@@ -643,7 +643,18 @@ void cmSystemTools::Error(const char* m1, const char* m2,
 void cmSystemTools::Message(const char* m1, const char *title)
 {
 #if defined(_WIN32) && !defined(__CYGWIN__)
-  ::MessageBox(0, m1, title, MB_OK);
+  static bool disableMessages = false;
+  if(disableMessages)
+    {
+    return;
+    }
+  std::string message = m1;
+  message += "\n\n(Press  Cancel to suppress any further messages.)";
+  if(::MessageBox(0, message.c_str(), title, 
+                  MB_OKCANCEL) == IDCANCEL)
+    {
+    disableMessages = true;
+    }
 #endif
   std::cerr << m1 << std::endl;
 }