From 4a352d43bbe3c8726046683e7dbc89a55b5e1c67 Mon Sep 17 00:00:00 2001
From: Ben Boeckel <ben.boeckel@kitware.com>
Date: Thu, 29 Aug 2013 14:43:54 -0400
Subject: Notify extra generators about languages

Some generators can use the any enabled languages to add extra support
in the relevant build tool. One such is Eclipse since there are many
plugins available for various languages.
---
 Source/cmExternalMakefileProjectGenerator.cxx | 6 ++++++
 Source/cmExternalMakefileProjectGenerator.h   | 2 ++
 Source/cmGlobalGenerator.cxx                  | 5 +++++
 3 files changed, 13 insertions(+)

diff --git a/Source/cmExternalMakefileProjectGenerator.cxx b/Source/cmExternalMakefileProjectGenerator.cxx
index 9c965cc..0d42c35 100644
--- a/Source/cmExternalMakefileProjectGenerator.cxx
+++ b/Source/cmExternalMakefileProjectGenerator.cxx
@@ -13,6 +13,12 @@
 
 #include "cmExternalMakefileProjectGenerator.h"
 
+void cmExternalMakefileProjectGenerator
+::EnableLanguage(std::vector<std::string> const&,
+                 cmMakefile *, bool)
+{
+}
+
 std::string cmExternalMakefileProjectGenerator::CreateFullGeneratorName(
                                                    const char* globalGenerator,
                                                    const char* extraGenerator)
diff --git a/Source/cmExternalMakefileProjectGenerator.h b/Source/cmExternalMakefileProjectGenerator.h
index 182c1a8..bce441d 100644
--- a/Source/cmExternalMakefileProjectGenerator.h
+++ b/Source/cmExternalMakefileProjectGenerator.h
@@ -41,6 +41,8 @@ public:
   /** Get the documentation entry for this generator.  */
   virtual void GetDocumentation(cmDocumentationEntry& entry,
                                 const char* fullName) const = 0;
+  virtual void EnableLanguage(std::vector<std::string> const& languages,
+                              cmMakefile *, bool optional);
 
   ///! set the global generator which will generate the makefiles
   virtual void SetGlobalGenerator(cmGlobalGenerator* generator)
diff --git a/Source/cmGlobalGenerator.cxx b/Source/cmGlobalGenerator.cxx
index 65a7118..56db0ef 100644
--- a/Source/cmGlobalGenerator.cxx
+++ b/Source/cmGlobalGenerator.cxx
@@ -695,6 +695,11 @@ cmGlobalGenerator::EnableLanguage(std::vector<std::string>const& languages,
     {
     mf->ReadListFile(0,projectCompatibility.c_str());
     }
+  // Inform any extra generator of the new language.
+  if (this->ExtraGenerator)
+    {
+    this->ExtraGenerator->EnableLanguage(languages, mf, false);
+    }
 
   if(fatalError)
     {
-- 
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