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diff --git a/Source/cmRemoveDefinitionsCommand.h b/Source/cmRemoveDefinitionsCommand.h
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+++ b/Source/cmRemoveDefinitionsCommand.h
@@ -0,0 +1,71 @@
+/*============================================================================
+  CMake - Cross Platform Makefile Generator
+  Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
+
+  Distributed under the OSI-approved BSD License (the "License");
+  see accompanying file Copyright.txt for details.
+
+  This software is distributed WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the License for more information.
+============================================================================*/
+#ifndef cmRemoveDefinitionsCommand_h
+#define cmRemoveDefinitionsCommand_h
+
+#include "cmCommand.h"
+
+/** \class cmRemoveDefinitionsCommand
+ * \brief Specify a list of compiler defines
+ *
+ * cmRemoveDefinitionsCommand specifies a list of compiler defines.
+ * These defines will
+ * be removed from the compile command.
+ */
+class cmRemoveDefinitionsCommand : public cmCommand
+{
+public:
+  /**
+   * This is a virtual constructor for the command.
+   */
+  virtual cmCommand* Clone()
+    {
+    return new cmRemoveDefinitionsCommand;
+    }
+
+  /**
+   * This is called when the command is first encountered in
+   * the CMakeLists.txt file.
+   */
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
+
+  /**
+   * The name of the command as specified in CMakeList.txt.
+   */
+  virtual const char* GetName() const {return "remove_definitions";}
+
+  /**
+   * Succinct documentation.
+   */
+  virtual const char* GetTerseDocumentation() const
+    {
+    return "Removes -D define flags added by add_definitions.";
+    }
+
+  /**
+   * More documentation.
+   */
+  virtual const char* GetFullDocumentation() const
+    {
+    return
+      "  remove_definitions(-DFOO -DBAR ...)\n"
+      "Removes flags (added by add_definitions) from the compiler command "
+      "line for sources in the current directory and below.";
+    }
+
+  cmTypeMacro(cmRemoveDefinitionsCommand, cmCommand);
+};
+
+
+
+#endif