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, 6 insertions, 9 deletions

diff --git a/Source/cmTargetCompileDefinitionsCommand.h b/Source/cmTargetCompileDefinitionsCommand.h
index 957123a..f910452 100644
--- a/Source/cmTargetCompileDefinitionsCommand.h
+++ b/Source/cmTargetCompileDefinitionsCommand.h
@@ -20,26 +20,23 @@ public:
   /**
    * This is a virtual constructor for the command.
    */
-  cmCommand* Clone() CM_OVERRIDE
-  {
-    return new cmTargetCompileDefinitionsCommand;
-  }
+  cmCommand* Clone() override { return new cmTargetCompileDefinitionsCommand; }
 
   /**
    * This is called when the command is first encountered in
    * the CMakeLists.txt file.
    */
   bool InitialPass(std::vector<std::string> const& args,
-                   cmExecutionStatus& status) CM_OVERRIDE;
+                   cmExecutionStatus& status) override;
 
 private:
-  void HandleImportedTarget(const std::string& tgt) CM_OVERRIDE;
-  void HandleMissingTarget(const std::string& name) CM_OVERRIDE;
+  void HandleImportedTarget(const std::string& tgt) override;
+  void HandleMissingTarget(const std::string& name) override;
 
   bool HandleDirectContent(cmTarget* tgt,
                            const std::vector<std::string>& content,
-                           bool prepend, bool system) CM_OVERRIDE;
-  std::string Join(const std::vector<std::string>& content) CM_OVERRIDE;
+                           bool prepend, bool system) override;
+  std::string Join(const std::vector<std::string>& content) override;
 };
 
 #endif