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Date:      Sun, 18 Aug 2013 21:53:04 +0200
From:      Joel Dahl <joel@freebsd.org>
To:        Dimitry Andric <dim@FreeBSD.org>
Cc:        svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, FreeBSD Ports <freebsd-ports@freebsd.org>, Peter Wemm <peter@FreeBSD.org>
Subject:   Re: svn commit: r254273 - in head: . include lib lib/libc/iconv lib/libiconv_compat lib/libkiconv share/mk sys/sys tools/build/mk
Message-ID:  <20130818195304.GA81160@devbox.vnode.local>
In-Reply-To: <3887D7C7-D766-40DF-B154-D05768B86AA6@FreeBSD.org>
References:  <201308130715.r7D7F1nu076335@svn.freebsd.org> <3887D7C7-D766-40DF-B154-D05768B86AA6@FreeBSD.org>

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On Sun, Aug 18, 2013 at 12:34:30AM +0200, Dimitry Andric wrote:
> On Aug 13, 2013, at 09:15, Peter Wemm <peter@FreeBSD.org> wrote:
> > Author: peter
> > Date: Tue Aug 13 07:15:01 2013
> > New Revision: 254273
> > URL: http://svnweb.freebsd.org/changeset/base/254273
> > 
> > Log:
> >  The iconv in libc did two things - implement the standard APIs, the GNU
> >  extensions and also tried to be link time compatible with ports libiconv.
> >  This splits that functionality and enables the parts that shouldn't
> >  interfere with the port by default.
> > 
> >  WITH_ICONV (now on by default) - adds iconv.h, iconv_open(3) etc.
> >  WITH_LIBICONV_COMPAT (off by default) adds the libiconv_open etc API, linker
> >  symbols and even a stub libiconv.so.3 that are good enough to be able
> >  to 'pkg delete -f libiconv' on a running system and reasonably expect it
> >  to work.
> > 
> >  I have tortured many machines over the last few days to try and reduce
> >  the possibilities of foot-shooting as much as I can.  I've successfully
> >  recompiled to enable and disable the libiconv_compat modes, ports that use
> >  libiconv alongside system iconv etc.  If you don't enable the
> >  WITH_LIBICONV_COMPAT switch, they don't share symbol space.
> > 
> >  This is an extension of behavior on other system.  iconv(3) is a standard
> >  libc interface and libiconv port expects to be able to run alongside it on
> >  systems that have it.
> 
> Unfortunately I expect this will break many ports, when the libiconv
> port is installed.  A simple example is the following:
<SNIP>

It also breaks installworld when /usr/src and /usr/obj are NFS exported
read-only.

-- 
Joel



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