ENH: major changes to support addition of languages from cmake modules directory.

Source/cmEnableLanguageCommand.h

@@ -0,0 +1,84 @@
+/*=========================================================================
+
+  Program:   CMake - Cross-Platform Makefile Generator
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+  Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
+  See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even 
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+     PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+#ifndef cmEnableLanguageCommand_h
+#define cmEnableLanguageCommand_h
+
+#include "cmCommand.h"
+
+/** \class cmEnableLanguageCommand
+ * \brief Specify the name for this build project.
+ *
+ * cmEnableLanguageCommand is used to specify a name for this build project.
+ * It is defined once per set of CMakeList.txt files (including
+ * all subdirectories). Currently it just sets the name of the workspace
+ * file for Microsoft Visual C++
+ */
+class cmEnableLanguageCommand : public cmCommand
+{
+public:
+  /**
+   * This is a virtual constructor for the command.
+   */
+  virtual cmCommand* Clone() 
+    {
+    return new cmEnableLanguageCommand;
+    }
+
+  /**
+   * This is called when the command is first encountered in
+   * the CMakeLists.txt file.
+   */
+  virtual bool InitialPass(std::vector<std::string> const& args);
+  
+  /**
+   * The name of the command as specified in CMakeList.txt.
+   */
+  virtual const char* GetName() {return "ENABLE_LANGUAGE";}
+
+  /**
+   * This determines if the command gets propagated down
+   * to makefiles located in subdirectories.
+   */
+  virtual bool IsInherited() 
+    {
+    return true;
+    }
+
+  /**
+   * Succinct documentation.
+   */
+  virtual const char* GetTerseDocumentation() 
+    {
+    return "Set a name for the entire project.";
+    }
+  
+  /**
+   * More documentation.
+   */
+  virtual const char* GetFullDocumentation()
+    {
+    return
+      "  ENABLE_LANGUAGE(languageName)\n"
+      " This command enables support for the named language in CMake.";
+    }
+  
+  cmTypeMacro(cmEnableLanguageCommand, cmCommand);
+};
+
+
+
+#endif