From owner-freebsd-questions  Wed May  8 17:49: 0 2002
Delivered-To: freebsd-questions@freebsd.org
Received: from elvis.mu.org (elvis.mu.org [192.203.228.196])
	by hub.freebsd.org (Postfix) with ESMTP
	id C2A2A37B40A; Wed,  8 May 2002 17:48:52 -0700 (PDT)
Received: by elvis.mu.org (Postfix, from userid 1192)
	id 92839AE25A; Wed,  8 May 2002 17:48:52 -0700 (PDT)
Date: Wed, 8 May 2002 17:48:52 -0700
From: Alfred Perlstein <bright@mu.org>
To: Mikhail Teterin <mi+mx@aldan.algebra.com>
Cc: questions@FreeBSD.org, current@FreeBSD.org
Subject: Re: does the order of .a files matter?
Message-ID: <20020509004852.GX36741@elvis.mu.org>
References: <200205082044.09459.mi+mx@aldan.algebra.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <200205082044.09459.mi+mx@aldan.algebra.com>
User-Agent: Mutt/1.3.27i
Sender: owner-freebsd-questions@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-questions.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-questions>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-questions>
X-Loop: FreeBSD.ORG

* Mikhail Teterin <mi+mx@aldan.algebra.com> [020508 17:46] wrote:
> Hello!
> 
> I'm trying to port a huge application to FreeBSD. The app's build
> process creates over a hundred of static libraries (.a) and then tries
> to link them (and a few object files) into the executable. The process
> seems to work fine on the existing platforms (a number of Unixes and
> NT), but on FreeBSD I keep getting unresolved symbols.
> 
> The most frustrating thing is, the number of such symbols varies greatly
> with the order, in which I list the libraries on the command line. Is
> not the linker supposed to make several runs over the given libraries if
> needed?
> 
> Each .a is created "by the book":
> 
>         ar cq lib<NAME>.a `lorder ${<NAME>_OBJS} | tsort -q`
>         ranlib lib<NAME>.a
> 
> and the executable creation is:
> 
> 	cc ... -o <exe> ${<exe>_OBJS} ${<exe>_LIBS} ...
> 
> It "almost" works, if I try to bypass the libraries completely and just
> link all of object files, but for the real application I hit the shell's
> limit on the number of arguments -- there are too many object files.
> 
> Any suggestions? Thanks a lot!
> 
> 	-mi
> 
> P.S. This is on ``FreeBSD 5.0-CURRENT #2: Fri Apr 26 13:04:00 GMT 2002''

doesn't 'ar' allow for incremental build of .a files?  Use xargs or
something to build one giant '.a' then link against that.

-Alfred

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-questions" in the body of the message