* blk0() and blk() perform the initial expand.
* I got the idea of expanding during the round function from SSLeay
*/
-#ifdef PIPE_ARCH_LITTLE_ENDIAN
+#if PIPE_ARCH_LITTLE_ENDIAN
# define blk0(i) (block->l[i] = (rol(block->l[i],24)&0xFF00FF00) \
|(rol(block->l[i],8)&0x00FF00FF))
#else