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diff --git a/Source/cmIncludeRegularExpressionCommand.h b/Source/cmIncludeRegularExpressionCommand.h
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+++ b/Source/cmIncludeRegularExpressionCommand.h
@@ -0,0 +1,75 @@
+/*============================================================================
+  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 cmIncludeRegularExpressionCommand_h
+#define cmIncludeRegularExpressionCommand_h
+
+#include "cmCommand.h"
+
+/** \class cmIncludeRegularExpressionCommand
+ * \brief Set the regular expression for following #includes.
+ *
+ * cmIncludeRegularExpressionCommand is used to specify the regular expression
+ * that determines whether to follow a #include file in dependency checking.
+ */
+class cmIncludeRegularExpressionCommand : public cmCommand
+{
+public:
+  /**
+   * This is a virtual constructor for the command.
+   */
+  virtual cmCommand* Clone()
+    {
+    return new cmIncludeRegularExpressionCommand;
+    }
+
+  /**
+   * 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 "include_regular_expression";}
+
+  /**
+   * Succinct documentation.
+   */
+  virtual const char* GetTerseDocumentation() const
+    {
+    return "Set the regular expression used for dependency checking.";
+    }
+
+  /**
+   * More documentation.
+   */
+  virtual const char* GetFullDocumentation() const
+    {
+    return
+      "  include_regular_expression(regex_match [regex_complain])\n"
+      "Set the regular expressions used in dependency checking.  Only files "
+      "matching regex_match will be traced as dependencies.  Only files "
+      "matching regex_complain will generate warnings if they cannot be "
+      "found "
+      "(standard header paths are not searched).  The defaults are:\n"
+      "  regex_match    = \"^.*$\" (match everything)\n"
+      "  regex_complain = \"^$\" (match empty string only)";
+    }
+
+  cmTypeMacro(cmIncludeRegularExpressionCommand, cmCommand);
+};
+
+
+
+#endif