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diff --git a/Build/source/texk/web2c/xetexdir/XeTeXswap.h b/Build/source/texk/web2c/xetexdir/XeTeXswap.h
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+/****************************************************************************\
+ Part of the XeTeX typesetting system
+ copyright (c) 1994-2006 by SIL International
+ written by Jonathan Kew
+
+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 SIL INTERNATIONAL 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.
+
+Except as contained in this notice, the name of SIL International
+shall not be used in advertising or otherwise to promote the sale,
+use or other dealings in this Software without prior written
+authorization from SIL International.
+\****************************************************************************/
+
+#ifndef __XeTeXswap_H
+#define __XeTeXswap_H
+
+#include "unicode/platform.h" // ICU's platform.h defines U_IS_BIG_ENDIAN for us
+
+#ifdef WIN32
+#define inline __inline /* for VC++ (non-C99); not sure about other compilers on W32 */
+#endif
+
+static inline UInt16
+SWAP16(const UInt16 p)
+{
+#if U_IS_BIG_ENDIAN
+ return p;
+#else
+ return (p >> 8) + (p << 8);
+#endif
+}
+
+static inline UInt32
+SWAP32(const UInt32 p)
+{
+#if U_IS_BIG_ENDIAN
+ return p;
+#else
+ return (p >> 24) + ((p >> 8) & 0x0000ff00) + ((p << 8) & 0x00ff0000) + (p << 24);
+#endif
+}
+
+#ifdef __cplusplus
+
+#ifdef XETEX_MAC
+#include "sfnt.h" /* for the 'fixed' typedef */
+static inline fixed
+SWAP(fixed p)
+{
+ return (fixed)SWAP32((UInt32)p);
+}
+#endif
+
+static inline UInt16
+SWAP(UInt16 p)
+{
+ return SWAP16(p);
+}
+
+static inline UInt32
+SWAP(UInt32 p)
+{
+ return SWAP32(p);
+}
+
+static inline SInt16
+SWAP(SInt16 p)
+{
+ return (SInt16)SWAP16((UInt16)p);
+}
+
+static inline SInt32
+SWAP(SInt32 p)
+{
+ return (SInt32)SWAP32((UInt32)p);
+}
+#endif
+
+#endif