use the Apple's recommended way of detecting big endian machines, WITHOUT
using autoconf

Common/Context.h

@@ -23,10 +23,9 @@
 #include "List.h"
 
 // How RGBA values are packed and unpacked into/from a 4-byte
-// integer. Don't use 'LITTLE_ENDIAN': Apple defines it in its system
-// headers.
+// integer:
 
-#if defined(HAVE_BIG_ENDIAN)
+#if defined(__BIG_ENDIAN__)
 #  define PACK_COLOR(R,G,B,A)   ( (unsigned int)((R)<<24 | (G)<<16 | (B)<<8 | (A)) )
 #  define UNPACK_RED(X)         ( ( (X) >> 24 ) & 0xff )
 #  define UNPACK_GREEN(X)       ( ( (X) >> 16 ) & 0xff )

configure.in

-dnl $Id: configure.in,v 1.61 2005-03-14 06:32:33 geuzaine Exp $
+dnl $Id: configure.in,v 1.62 2005-06-06 22:05:28 geuzaine Exp $
 dnl
 dnl Copyright (C) 1997-2005 C. Geuzaine, J.-F. Remacle
 dnl
@@ -399,9 +399,6 @@ case "$UNAME" in
 
 esac
 
-dnl Is the machine big or little endian?
-AC_C_BIGENDIAN(FLAGS="-DHAVE_BIG_ENDIAN ${FLAGS}")
-
 dnl Check for header files
 AC_HEADER_STDC
 AC_CHECK_HEADERS(sys/time.h sys/resource.h)