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/cmExportTryCompileFileGenerator.h b/Source/cmExportTryCompileFileGenerator.h
index 9f6ac03740..70c3857280 100644
--- a/Source/cmExportTryCompileFileGenerator.h
+++ b/Source/cmExportTryCompileFileGenerator.h
@@ -27,15 +27,15 @@ public:
   void SetConfig(const std::string& config) { this->Config = config; }
 protected:
   // Implement virtual methods from the superclass.
-  bool GenerateMainFile(std::ostream& os) CM_OVERRIDE;
+  bool GenerateMainFile(std::ostream& os) override;
 
   void GenerateImportTargetsConfig(std::ostream&, const std::string&,
                                    std::string const&,
-                                   std::vector<std::string>&) CM_OVERRIDE
+                                   std::vector<std::string>&) override
   {
   }
   void HandleMissingTarget(std::string&, std::vector<std::string>&,
-                           cmGeneratorTarget*, cmGeneratorTarget*) CM_OVERRIDE
+                           cmGeneratorTarget*, cmGeneratorTarget*) override
   {
   }
 
@@ -44,7 +44,7 @@ protected:
                           std::set<const cmGeneratorTarget*>& emitted);
 
   std::string InstallNameDir(cmGeneratorTarget* target,
-                             const std::string& config) CM_OVERRIDE;
+                             const std::string& config) override;
 
 private:
   std::string FindTargets(const std::string& prop,