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diff --git a/src/ftgl/FTGlyph/FTExtrudeGlyphImpl.h b/src/ftgl/FTGlyph/FTExtrudeGlyphImpl.h
new file mode 100644
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+++ b/src/ftgl/FTGlyph/FTExtrudeGlyphImpl.h
@@ -0,0 +1,69 @@
+/*
+ * FTGL - OpenGL font library
+ *
+ * Copyright (c) 2001-2004 Henry Maddocks <ftgl@opengl.geek.nz>
+ * Copyright (c) 2008 Sam Hocevar <sam@zoy.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef __FTExtrudeGlyphImpl__
+#define __FTExtrudeGlyphImpl__
+
+#include "FTGlyphImpl.h"
+
+class FTVectoriser;
+
+class FTExtrudeGlyphImpl : public FTGlyphImpl
+{
+    friend class FTExtrudeGlyph;
+
+    protected:
+        FTExtrudeGlyphImpl(FT_GlyphSlot glyph, float depth, float frontOutset,
+                           float backOutset, bool useDisplayList);
+
+        virtual ~FTExtrudeGlyphImpl();
+
+        virtual const FTPoint& RenderImpl(const FTPoint& pen, int renderMode);
+
+    private:
+        /**
+         * Private rendering methods.
+         */
+        void RenderFront();
+        void RenderBack();
+        void RenderSide();
+
+        /**
+         * Private rendering variables.
+         */
+        unsigned int hscale, vscale;
+        float depth;
+        float frontOutset, backOutset;
+        FTVectoriser *vectoriser;
+
+        /**
+         * OpenGL display list
+         */
+        GLuint glList;
+};
+
+#endif  //  __FTExtrudeGlyphImpl__
+