diff -r 000000000000 -r 1918ee327afb src/3rdparty/libmng/libmng_dither.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/3rdparty/libmng/libmng_dither.c	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,58 @@
+/* ************************************************************************** */
+/* *             For conditions of distribution and use,                    * */
+/* *                see copyright notice in libmng.h                        * */
+/* ************************************************************************** */
+/* *                                                                        * */
+/* * project   : libmng                                                     * */
+/* * file      : libmng_dither.c           copyright (c) 2000-2004 G.Juyn   * */
+/* * version   : 1.0.9                                                      * */
+/* *                                                                        * */
+/* * purpose   : Dithering routines (implementation)                        * */
+/* *                                                                        * */
+/* * author    : G.Juyn                                                     * */
+/* *                                                                        * */
+/* * comment   : implementation of the dithering routines                   * */
+/* *                                                                        * */
+/* * changes   : 0.5.1 - 05/08/2000 - G.Juyn                                * */
+/* *             - changed strict-ANSI stuff                                * */
+/* *                                                                        * */
+/* *             0.9.2 - 08/05/2000 - G.Juyn                                * */
+/* *             - changed file-prefixes                                    * */
+/* *                                                                        * */
+/* *             1.0.5 - 08/19/2002 - G.Juyn                                * */
+/* *             - B597134 - libmng pollutes the linker namespace           * */
+/* *                                                                        * */
+/* *             1.0.9 - 12/20/2004 - G.Juyn                                * */
+/* *             - cleaned up macro-invocations (thanks to D. Airlie)       * */
+/* *                                                                        * */
+/* ************************************************************************** */
+
+#include "libmng.h"
+#include "libmng_data.h"
+#include "libmng_error.h"
+#include "libmng_trace.h"
+#ifdef __BORLANDC__
+#pragma hdrstop
+#endif
+#include "libmng_dither.h"
+
+#if defined(__BORLANDC__) && defined(MNG_STRICT_ANSI)
+#pragma option -A                      /* force ANSI-C */
+#endif
+
+/* ************************************************************************** */
+
+mng_retcode mng_dither_a_row (mng_datap  pData,
+                              mng_uint8p pRow)
+{
+
+
+  return MNG_NOERROR;
+}
+
+/* ************************************************************************** */
+/* * end of file                                                            * */
+/* ************************************************************************** */
+
+
+