Metrowerks for Motorola tune-up.

crypto/md32_common.h

@@ -182,8 +182,11 @@
 # if defined(_MSC_VER)
 #  define ROTATE(a,n)	_lrotl(a,n)
 # elif defined(__MWERKS__)
-#  ifdef __POWERPC__
+#  if defined(__POWERPC__)
 #   define ROTATE(a,n)	__rlwinm(a,n,0,31)
+#  elif defined(__MC68K__)
+    /* Motorola specific tweak. <appro@fy.chalmers.se> */
+#   define ROTATE(a,n)	( n<24 ? __rol(a,n) : __ror(a,32-n) )
 #  else
 #   define ROTATE(a,n)	__rol(a,n)
 #  endif

crypto/sha/sha_locl.h

@@ -103,9 +103,16 @@
 # define HASH_INIT			SHA1_Init
 # define HASH_BLOCK_HOST_ORDER   	sha1_block_host_order
 # define HASH_BLOCK_DATA_ORDER   	sha1_block_data_order
-# define Xupdate(a,ix,ia,ib,ic,id)	( (a)=(ia^ib^ic^id),	\
+# if defined(__MWERKS__) && defined(__MC68K__)
+   /* Metrowerks for Motorola fails otherwise:-( <appro@fy.chalmers.se> */
+#  define Xupdate(a,ix,ia,ib,ic,id)	do { (a)=(ia^ib^ic^id);		\
+					     ix=(a)=ROTATE((a),1);	\
+					} while (0)
+# else
+#  define Xupdate(a,ix,ia,ib,ic,id)	( (a)=(ia^ib^ic^id),	\
 					  ix=(a)=ROTATE((a),1)	\
 					)
+# endif
 
 # ifdef SHA1_ASM
 #  if defined(__i386) || defined(_M_IX86) || defined(__INTEL__)