Fixed endian detection on IA64 architectures (thanks Bill!)

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%4025

docs.html

@@ -16,7 +16,8 @@ be found at the <A HREF="http://www.libsdl.org/"> main SDL page</A>.
 Major changes since SDL 1.0.0:
 </H2>
 <UL>
-	<LI> 1.2.1: Added --disable-dga configure option to disable DGA entirely
+	<LI> 1.2.1: Fixed endian detection on IA64 architectures (thanks Bill!)
+	<LI> 1.2.1: Added --disable-dga configure option to disable DGA
 	<LI> 1.2.1: Fixed stuck keys when changing the video mode
 	<LI> 1.2.1: Fixed double-mouse event bug on Windows using OpenGL
 	<LI> 1.2.1: Fixed 320x200 video mode on framebuffer console

include/SDL_byteorder.h

@@ -39,7 +39,7 @@ static char rcsid =
    script so that application code can use this too.  The "right" way would
    be to dynamically generate this file on install, but that's a lot of work.
  */
-#if  defined(__i386__) || defined(WIN32) || \
+#if  defined(__i386__) || defined(__ia64__) || defined(WIN32) || \
     (defined(__alpha__) || defined(__alpha)) || \
      defined(__arm__) || \
     (defined(__mips__) && defined(__MIPSEL__)) || \