* io.c (pipe_open): Added rb_thread_atfork(). We must reinitialize GVL at new process creation.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@31850 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Added by yugui (Yuki Sonoda) almost 13 years ago
merges r30364 from trunk into ruby_1_9_2. Fixes #4377.¶
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@31850 b2dd03c8-39d4-4d8f-98ff-823fe69b080e