From: Rich Felker <dalias@libc.org>
To: musl@lists.openwall.com
Subject: Re: No definition of PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP in musl
Date: Mon, 20 Feb 2017 12:03:54 -0500 [thread overview]
Message-ID: <20170220170354.GS1520@brightrain.aerifal.cx> (raw)
In-Reply-To: <20170220162419.dxpcdbp23up3iopr@voyager>
On Mon, Feb 20, 2017 at 05:24:19PM +0100, Markus Wichmann wrote:
> On Mon, Feb 20, 2017 at 03:22:41PM +0000, Raphael Cohn wrote:
> > Hi,
> >
> > Whilst trying to compile ReOpenLDAP (https://github.com/ReOpen/ReOpenLDAP),
> > a fork of OpenLDAP, I'm running into a wall. Some of the code wants a
> > definition of PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP. musl doesn't define
> > this; I suspect this is a non-portable glibc extension in pthread.h. Does
> > any one have any ideas how I might workaround this? Is there an alternative
> > construction that the code could use?
> >
>
> Well, not directly.
>
> [...]
>
> Alternatively, you could look up the effects the above snippet has on
> the mutex under musl, at least at the moment, and declare the
> nonportable initializer yourself. At the moment, I think it would be
>
> #define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP {{PTHREAD_MUTEX_RECURSIVE}}
This is a very bad idea, and _will_ break when (not if, when) we
change the layout. It's made opaque for a good reason.
Rich
next prev parent reply other threads:[~2017-02-20 17:03 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-20 15:22 Raphael Cohn
2017-02-20 16:24 ` Markus Wichmann
2017-02-20 17:03 ` Rich Felker [this message]
2017-02-20 17:21 ` Raphael Cohn
2017-02-20 17:03 ` Rich Felker
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