Ruby » Ruby master

thread_pthread.c: init stack with ulimit

• thread_pthread.c (ruby_init_stack): use getrlimit() for the main
  thread on Mac OS X, since pthread_get_stack{addr,size}_np() and
  return the default value always, but not the ulimit value.
  [ruby-dev:46174] [Bug #7084]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37072 b2dd03c8-39d4-4d8f-98ff-823fe69b080e