search_required, rb_require_safe), ext/extmk.rb: Fix
a bug where a statically linked extension cannot be autoloaded.
[ruby-dev:30023] / [ruby-dev:30239]
* thread.c: added an internal class, Barrier.
* yarvcore.h (struct rb_vm_struct): moved loading_table from global.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@12246 b2dd03c8-39d4-4d8f-98ff-823fe69b080e