freeze internal objects
commitf70f5101ac040d7da3ec67c3a7c1664bb9d5193c
authorEric Wong <e@80x24.org>
Mon, 20 Mar 2017 18:47:26 +0000 (20 18:47 +0000)
committerEric Wong <e@80x24.org>
Mon, 20 Mar 2017 19:13:09 +0000 (20 19:13 +0000)
tree21e91d76e3d141e30fdc98739e58085c8bda2842
parentc374ed19128f87a52f024bd7a8e56e13f7423603
freeze internal objects

We do not want ObjectSpace walkers to be able to mess with
our internals.
ext/posix_mq/posix_mq.c