Date: Thu, 4 Sep 2003 14:10:50 -0700 From: "David O'Brien" <obrien@FreeBSD.org> To: Ruslan Ermilov <ru@FreeBSD.org> Cc: Peter Wemm <peter@FreeBSD.org> Subject: Re: /lib/foo.so.X -> /usr/lib/foo.so Message-ID: <20030904211050.GA3035@dragon.nuxi.com> In-Reply-To: <20030904202715.GD4481@sunbay.com> References: <200309040429.h844TBhD058678@repoman.freebsd.org> <20030904083617.GA56261@dragon.nuxi.com> <20030904092755.GD45051@sunbay.com> <20030904140129.GA61909@dragon.nuxi.com> <20030904155659.GC97732@sunbay.com> <20030904162656.GA396@dragon.nuxi.com> <20030904174100.GY695@roark.gnf.org> <20030904185839.GB4481@sunbay.com> <20030904202715.GD4481@sunbay.com>
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On Thu, Sep 04, 2003 at 11:27:15PM +0300, Ruslan Ermilov wrote:
> On Thu, Sep 04, 2003 at 09:58:39PM +0300, Ruslan Ermilov wrote:
> [...]
> > The patch is not a problem (attached). I've been looking at
> > how our friends do this. NetBSD has symlinks in /usr/lib to
> > /lib, both to .so and .so.X, and their cc(1) and ld(1) don't
> > look things in /lib. Linux looks things up in both /lib and
> > /usr/lib, and does not have symlinks from /usr/lib to /lib.
> >
> There is a sad typo above: Linux *does* have symlinks from
> /usr/lib to /lib, so both use /usr/lib for linking.
What version of Linux are you using? SuSE Enterprise Linux 8, and Red
Hat Enterprise Linux 3 both do not have symlinks for libs from /usr/lib
to /lib. They use a different machanism:
suse# cat /usr/lib/libc.so
/* GNU ld script
Use the shared library, but some functions are only in
the static library, so try that secondarily. */
GROUP ( /lib/libc.so.6 /usr/lib/libc_nonshared.a )
> Not that I'm completely happy with introducing yet another
> variable in bsd.lib.mk, but the attached patch:
>
> - Leaves only one set of .so symlinks in /usr/lib.
>
> Benefits: all other systems that use both /lib and /usr/lib
> (that I've been able to test) have .so links in /usr/lib
> only, and use them for linking; GCC in ports will like this
> better.
>
> - Uses absolute paths in .so symlinks.
>
> Benefit: works for people who have their /usr symlinked
> somewhere.
A true benefit.
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