From: Timothy Hunter <cyclists@...>
Date: 2009-10-14T05:25:12+09:00
Subject: [ruby-core:26073] Re: Ruby 1.8.6-p383 hangs in dln_load on Snow Leopard


On Oct 12, 2009, at Oct 12 7:56 AM, Andrew White wrote:

> On Oct 3, 10:26 pm, Timothy Hunter <cycli...@nc.rr.com> wrote:
>> An RMagick user reports that Ruby 1.8.6 hangs when requiring RMagick.
>> I've determined that Ruby hangs in semaphore_wait_signal_trap()  
>> called
>> from dln_load(). I've pasted the full traceback below.
>
> It looks like Snow Leopard broke backwards compatibility with
> NSLinkModule as backporting the changes in dln.c from 1.8.7 to 1.8.6
> seems to fix the problems for me - at least it lets me load RMagick
> without hanging. NSLinkModule and friends have been deprecated for a
> while now (10.4, I think) and I'm betting that they didn't get much
> attention when Apple were optimising dyld for Snow Leopard.
>

Fascinating. Thanks for running this down, Andrew. Do you think I  
should open a bug on Redmine? Were you planning to submit a patch?