diff --git a/CMakeModules/Functions.cmake b/CMakeModules/Functions.cmake
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+++ b/CMakeModules/Functions.cmake
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+#  This program source code file is part of KICAD, a free EDA CAD application.
+#
+#  Copyright (C) 2010 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
+#  Copyright (C) 2010 Kicad Developers, see AUTHORS.txt for contributors.
+#
+#  This program is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU General Public License
+#  as published by the Free Software Foundation; either version 2
+#  of the License, or (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, you may find one here:
+#  http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+#  or you may search the http://www.gnu.org website for the version 2 license,
+#  or you may write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+#
+
+
+# Function make_lexer
+# is a standard way to invoke TokenList2DsnLexer.cmake
+function( make_lexer inputFile outHeaderFile outCppFile enum )
+    add_custom_command(
+        OUTPUT  ${outHeaderFile}
+                ${outCppFile}
+        COMMAND ${CMAKE_COMMAND}
+            -Denum=${enum}
+            -DinputFile=${inputFile}
+            -DoutHeaderFile=${outHeaderFile}
+            -DoutCppFile=${outCppFile}
+            -P ${CMAKE_MODULE_PATH}/TokenList2DsnLexer.cmake
+        DEPENDS ${inputFile}
+                ${CMAKE_MODULE_PATH}/TokenList2DsnLexer.cmake
+        COMMENT "TokenList2DsnLexer.cmake creating:
+           ${outHeaderFile} and
+           ${outCppFile} from
+           ${inputFile}"
+        )
+endfunction()
+