cont.c: machine stack cache condition
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63344 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
cont.c: machine stack cache condition
to cache machine stacks, which is not directly restricted to the
platforms, and may be used on Windows too in the future.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63344 b2dd03c8-39d4-4d8f-98ff-823fe69b080e