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Date:      Mon, 28 Sep 2015 21:30:40 -0700
From:      Jason Schulz <schulz.j@gmail.com>
To:        John Baldwin <jhb@freebsd.org>
Cc:        Konstantin Belousov <kostikbel@gmail.com>, freebsd-threads@freebsd.org
Subject:   Re: pthread_getaffinity_np issue
Message-ID:  <20150929043040.GA2177@gmail.com>
In-Reply-To: <5496698.OIvuy2PFgu@ralph.baldwin.cx>
References:  <20150924181127.GC3104@gmail.com> <20150924191121.GG3104@gmail.com> <20150924192623.GL67105@kib.kiev.ua> <5496698.OIvuy2PFgu@ralph.baldwin.cx>

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On Fri, Sep 25, 2015 at 09:37:55AM -0700, John Baldwin wrote:
> On Thursday, September 24, 2015 10:26:23 PM Konstantin Belousov wrote:
> > So your issue only appears when you specify _XOPEN_SOURCE.  This is reasonable,
> > because __bitcount stuff in sys/types.h was put under _BSD_VISIBLE protection.
> > I am not sure why and I Cc:ed the author of the change.
> > 
> > IMO all symbols from __bitcount* are in the private namespace and could
> > be made unconditionally accessible, to avoid surprises.  I put the patch
> > at the end of the message which does this.
> 
> It was not on purpose, more to put it in the section with other "doodads".
> If it is safe to move out from under BSD_VISIBLE then your patch is fine
> with me.  The only person I can think to ask would be bde@, but my guess
> is your change is correct.
> 
> -- 
> John Baldwin


I tried the patch with _XOPEN_SOURCE=700 and the non-posix CPU_COUNT macro does
compile correctly now.  I didn't try with _POSIX_SOURCE, but I would guess it
should also compile.

If anyone wants me to test anything else with the patch, just let me know.  

-J



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