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diff --git a/source/blender/blenlib/BLI_ghash.h b/source/blender/blenlib/BLI_ghash.h
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+/**
+ * A general (pointer -> pointer) hash table ADT
+ * 
+ * $Id$
+ *
+ * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
+ *
+ * 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. The Blender
+ * Foundation also sells licenses for use in proprietary software under
+ * the Blender License.  See http://www.blender.org/BL/ for information
+ * about this.
+ *
+ * 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, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL/BL DUAL LICENSE BLOCK *****
+ */
+ 
+#ifndef BLI_GHASH_H
+#define BLI_GHASH_H
+
+struct GHash;
+typedef struct GHash GHash;
+typedef struct GHashIterator GHashIterator;
+
+typedef unsigned int	(*GHashHashFP)		(void *key);
+typedef int				(*GHashCmpFP)		(void *a, void *b);
+typedef	void			(*GHashKeyFreeFP)	(void *key);
+typedef void			(*GHashValFreeFP)	(void *val);
+
+GHash*	BLI_ghash_new		(GHashHashFP hashfp, GHashCmpFP cmpfp);
+void	BLI_ghash_free		(GHash *gh, GHashKeyFreeFP keyfreefp, GHashValFreeFP valfreefp);
+
+void	BLI_ghash_insert	(GHash *gh, void *key, void *val);
+int		BLI_ghash_remove	(GHash *gh, void *key, GHashKeyFreeFP keyfreefp, GHashValFreeFP valfreefp);
+void*	BLI_ghash_lookup	(GHash *gh, void *key);
+int		BLI_ghash_haskey	(GHash *gh, void *key);
+
+int		BLI_ghash_size		(GHash *gh);
+
+/* *** */
+
+	/**
+	 * Create a new GHashIterator. The hash table must not be mutated
+	 * while the iterator is in use, and the iterator will step exactly
+	 * BLI_ghash_size(gh) times before becoming done.
+	 * 
+	 * @param gh The GHash to iterate over.
+	 * @return Pointer to a new DynStr.
+	 */
+GHashIterator*	BLI_ghashIterator_new		(GHash *gh);
+	/**
+	 * Free a GHashIterator.
+	 *
+	 * @param ghi The iterator to free.
+	 */
+void			BLI_ghashIterator_free		(GHashIterator *ghi);
+
+	/**
+	 * Retrieve the key from an iterator.
+	 *
+	 * @param ghi The iterator.
+	 * @return The key at the current index, or NULL if the 
+	 * iterator is done.
+	 */
+void*			BLI_ghashIterator_getKey	(GHashIterator *ghi);
+	/**
+	 * Retrieve the value from an iterator.
+	 *
+	 * @param ghi The iterator.
+	 * @return The value at the current index, or NULL if the 
+	 * iterator is done.
+	 */
+void*			BLI_ghashIterator_getValue	(GHashIterator *ghi);
+	/**
+	 * Steps the iterator to the next index.
+	 *
+	 * @param ghi The iterator.
+	 */
+void			BLI_ghashIterator_step		(GHashIterator *ghi);
+	/**
+	 * Determine if an iterator is done (has reached the end of
+	 * the hash table).
+	 *
+	 * @param ghi The iterator.
+	 * @return True if done, False otherwise.
+	 */
+int				BLI_ghashIterator_isDone	(GHashIterator *ghi);
+
+/* *** */
+
+unsigned int	BLI_ghashutil_ptrhash	(void *key);
+int				BLI_ghashutil_ptrcmp	(void *a, void *b);
+
+unsigned int	BLI_ghashutil_strhash	(void *key);
+int				BLI_ghashutil_strcmp	(void *a, void *b);
+
+unsigned int	BLI_ghashutil_inthash	(void *ptr);
+int				BLI_ghashutil_intcmp(void *a, void *b);
+
+#endif
+