* include/ruby/ruby.h (RBIGNUM_SIGN): Defined for compatibility.
  (RBIGNUM_POSITIVE_P): Ditto.
  (RBIGNUM_NEGATIVE_P): Ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44996 b2dd03c8-39d4-4d8f-98ff-823fe69b080e