Subject: Re: libpthread busted?
To: Peter Seebach <firstname.lastname@example.org>
From: Bill Studenmund <email@example.com>
Date: 02/28/2003 16:23:33
On Fri, 28 Feb 2003, Peter Seebach wrote:
> In message <Pine.NEB.firstname.lastname@example.org>
> , Bill Studenmund writes:
> >The reason Jason thinks it doesn't work is that you've bound to a libc
> >mutex operation, which only happens if NetBSD's libpthread isn't around at
> >dynamic link time.
> Okay. I'm not sure how I'd... ldd!
> -lm.0 => /usr/lib/libm387.so.0
> -lm.0 => /usr/lib/libm.so.0
> -lcrypt.0 => /usr/lib/libcrypt.so.0
> -lc.12 => /usr/lib/libc.so.12
Ok, no pthread.
> >If that's not a typo, that's a problem. With -current pthreads, you can
> >ONLY use -current pthreads. You can't mix different thread libraries
> Or I could just be easily confused; I vaguely recall pthreads and "pth" being
They are similar. They are also different. :-) As Nathan said, you can use
one or the other.
> Oh! I have several packages which claim they "need" pth. So, let me guess, I
> should delete *those*, too, and nuke the pth package?
Maybe, maybe not. Probably though.
If the package were good about making sure when it said -lpthread it got
pth's libpthread, it's ok. But the linker might get the wrong one, in
which case there's a mess so you should just delete the pth package &
> >What MIGHT be happening is that a program's using pth, not NetBSD's
> >libpthread. That will be a problem as we have expectations of what
> >-lpthread does (overrides some weak symbols in libc) that the pth package
> >mightn't be doing.
> Oh-ho! Perfect, logical, explanation. I will try that.
Turns out its wrong, as Nathan indicated. Among other things, pht-pthreads
won't tell libc that NetBSD's libpthread is around. :-)