From: Eric Wong <normalperson@...>
Date: 2018-09-21T09:32:49+00:00
Subject: [ruby-core:89135] Re: [Ruby trunk Bug#14807] 2.6.0-preview2 segfaults on OpenBSD due to missing pthread_condattr_init call

> https://bugs.ruby-lang.org/issues/14807#change-74146

Right, already in trunk at r63548

And back to Jeremy's earlier comment:
> It's defined but I don't think it would be usable:
> 
> /usr/include/pthread.h:#define PTHREAD_COND_INITIALIZER NULL

Without reading the OpenBSD pthreads library source code;
I suspect that it would be usable.

The condvar implementation can safely perform lazy-initialization
because it can rely on the underlying mutex for protection.

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