Use C++11 override instead of CM_OVERRIDE

We now require C++11 support including `override`.  Drop use of
the old compatibility macro.  Convert references as follows:

    git grep -l CM_OVERRIDE -- '*.h' '*.hxx' '*.cxx' |
      xargs sed -i 's/CM_OVERRIDE/override/g'

1 files changed, 4 insertions, 4 deletions

diff --git a/Source/cmExportBuildFileGenerator.h b/Source/cmExportBuildFileGenerator.h
index d509453bab..6457a77874 100644
--- a/Source/cmExportBuildFileGenerator.h
+++ b/Source/cmExportBuildFileGenerator.h
@@ -49,14 +49,14 @@ public:
 
 protected:
   // Implement virtual methods from the superclass.
-  bool GenerateMainFile(std::ostream& os) CM_OVERRIDE;
+  bool GenerateMainFile(std::ostream& os) override;
   void GenerateImportTargetsConfig(
     std::ostream& os, const std::string& config, std::string const& suffix,
-    std::vector<std::string>& missingTargets) CM_OVERRIDE;
+    std::vector<std::string>& missingTargets) override;
   void HandleMissingTarget(std::string& link_libs,
                            std::vector<std::string>& missingTargets,
                            cmGeneratorTarget* depender,
-                           cmGeneratorTarget* dependee) CM_OVERRIDE;
+                           cmGeneratorTarget* dependee) override;
 
   void ComplainAboutMissingTarget(cmGeneratorTarget* depender,
                                   cmGeneratorTarget* dependee,
@@ -69,7 +69,7 @@ protected:
                                  ImportPropertyMap& properties);
 
   std::string InstallNameDir(cmGeneratorTarget* target,
-                             const std::string& config) CM_OVERRIDE;
+                             const std::string& config) override;
 
   std::vector<std::string> FindNamespaces(cmGlobalGenerator* gg,
                                           const std::string& name);