Avoid endian problems when building ruby as a fat Mach-O binary.

diff -ruN ruby-1.6.8.orig/ext/digest/md5/md5.c ruby-1.6.8/ext/digest/md5/md5.c
--- ruby-1.6.8.orig/ext/digest/md5/md5.c	Thu Aug 16 00:35:42 2001
+++ ruby-1.6.8/ext/digest/md5/md5.c	Wed Apr  2 21:54:20 2003
@@ -47,6 +47,12 @@
 
 #include "md5.h"
 
+#ifdef __BIG_ENDIAN__
+#define WORDS_BIGENDIAN
+#else
+#undef WORDS_BIGENDIAN
+#endif
+ 
 #ifdef TEST
 /*
  * Compile with -DTEST to create a self-contained executable test program.
diff -ruN ruby-1.6.8.orig/ext/digest/rmd160/rmd160.c ruby-1.6.8/ext/digest/rmd160/rmd160.c
--- ruby-1.6.8.orig/ext/digest/rmd160/rmd160.c	Thu Aug 16 00:35:42 2001
+++ ruby-1.6.8/ext/digest/rmd160/rmd160.c	Wed Apr  2 21:54:39 2003
@@ -26,6 +26,12 @@
 /* __RCSID("$NetBSD: rmd160.c,v 1.1.1.1 2001/03/06 11:21:05 agc Exp $"); */
 #endif	/* not lint */
 
+#ifdef __BIG_ENDIAN__
+#define WORDS_BIGENDIAN
+#else
+#undef WORDS_BIGENDIAN
+#endif
+ 
 /* header files */
 
 #ifdef HAVE_SYS_ENDIAN_H_
diff -ruN ruby-1.6.8.orig/ext/digest/sha1/sha1.c ruby-1.6.8/ext/digest/sha1/sha1.c
--- ruby-1.6.8.orig/ext/digest/sha1/sha1.c	Thu Aug 16 00:35:43 2001
+++ ruby-1.6.8/ext/digest/sha1/sha1.c	Wed Apr  2 21:54:56 2003
@@ -19,6 +19,12 @@
 
 #include "sha1.h"
 
+#ifdef __BIG_ENDIAN__
+#define WORDS_BIGENDIAN
+#else
+#undef WORDS_BIGENDIAN
+#endif
+ 
 #define SHA1HANDSOFF		/* Copies data before messing with it. */
 
 #if defined(_KERNEL) || defined(_STANDALONE)
diff -ruN ruby-1.6.8.orig/ext/digest/sha2/sha2.c ruby-1.6.8/ext/digest/sha2/sha2.c
--- ruby-1.6.8.orig/ext/digest/sha2/sha2.c	Tue Feb 26 20:47:51 2002
+++ ruby-1.6.8/ext/digest/sha2/sha2.c	Wed Apr  2 21:55:14 2003
@@ -41,6 +41,12 @@
 #include <assert.h>	/* assert() */
 #include "sha2.h"
 
+#ifdef __BIG_ENDIAN__
+#define WORDS_BIGENDIAN
+#else
+#undef WORDS_BIGENDIAN
+#endif
+ 
 /*
  * ASSERT NOTE:
  * Some sanity checking code is included using assert().  On my FreeBSD
diff -ruN ruby-1.6.8.orig/pack.c ruby-1.6.8/pack.c
--- ruby-1.6.8.orig/pack.c	Wed May  1 02:37:58 2002
+++ ruby-1.6.8/pack.c	Wed Apr  2 21:53:52 2003
@@ -14,6 +14,12 @@
 #include <sys/types.h>
 #include <ctype.h>
 
+#ifdef __BIG_ENDIAN__
+#define WORDS_BIGENDIAN
+#else
+#undef WORDS_BIGENDIAN
+#endif
+ 
 #define SIZE16 2
 #define SIZE32 4