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Date: Tue, 17 Jan 2006 00:55:09 -0500 (EST)
From: Daniel Eischen <deischen@freebsd.org>
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To: Doug White <dwhite@gumbysoft.com>
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Cc: current@freebsd.org
Subject: Re: New malloc breaks old libpthread
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On Mon, 16 Jan 2006, Doug White wrote:

> Got this trying to run an old Xorg binary on a -CURRENT machine I don't
> update very frequently:
>
> /libexec/ld-elf.so.1: /usr/lib/libpthread.so.1: Undefined symbol "__malloc_lock"
>
> The libpthread.so.1 was from June 2005, prior to the libpthread version
> bump. Unfortunately this means that RELENG_6 compatibility is broken in
> -HEAD since the new libc.so.6 is not compatible with libraries built
> against it prior to the merge date of the new user malloc.

Don't do that.  We don't guarantee -current libraries built on
(vastly) different dates will run nicely together.

> I guess its time libc's version number.  We haven't yet for post-RELENG_6,
> and this it the usual case calling for the bump.

No.  There's no need -- this is -current, and we have symbol versioning
now anyways.

> /me breaks out the paintbrushes, smocks, and dropcloths

-- 
DE