* bignum.c (bary_pack): Support
  INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION flag.
  Fix byte order and word order handling in code specialized for
  wordsize % SIZEOF_BDIGITS == 0.

* internal.h (INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION): Defined.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41565 b2dd03c8-39d4-4d8f-98ff-823fe69b080e