From owner-freebsd-questions  Fri Mar 20 09:22:36 1998
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Received: (from majordom@localhost)
          by hub.freebsd.org (8.8.8/8.8.8) id JAA04669
          for freebsd-questions-outgoing; Fri, 20 Mar 1998 09:22:36 -0800 (PST)
          (envelope-from owner-freebsd-questions@FreeBSD.ORG)
Received: from ceddec.com (brickwall.ceddec.com [207.91.200.193])
          by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id JAA04586
          for <freebsd-questions@FreeBSD.ORG>; Fri, 20 Mar 1998 09:22:18 -0800 (PST)
          (envelope-from root@hub.freebsd.org)
Received: by brickwall.ceddec.com id <43009>; Fri, 20 Mar 1998 12:16:58 -0500
Message-Id: <98Mar20.121658est.43009@brickwall.ceddec.com>
Date: Fri, 20 Mar 1998 12:16:00 -0500
To: freebsd-questions@FreeBSD.ORG
X-URL: http://www.freebsd.org/support.html
X-Mailer: Lynx, Version 2.7.2
X-Personal_name: tom zerucha
From: tz@execpc.com
Subject: Makefile, sys.mk, and option (lib) ordering for gcc
Sender: owner-freebsd-questions@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.ORG

I am having severe problems getting my programs to link with FreeBSD
using make when they work fine under Linux.

The problem is that FreeBSD pays strict attention to the ordering, so
when I need -lx -ly -lz, where libx.a needs liby.a, and liby.a needs
libz.a, I must specify these in order AND AFTER ALL OBJECTS.

In sys.mk, there are two rules (one posix and one non-posix)

.c:
        ${CC} ${CFLAGS} ${LDFLAGS} -o ${.TARGET} ${.IMPSRC} 

The problem is that for the compile to work, I have to get the libs
*after* the IMPSRC, i.e. if I put the libs in the LDFLAGS it becomes

cc -lx -ly -lz -o w w.c

and fails.

Altering sys.mk allowed everything to work, but under Linux, the above
cc line works.  I need a Makefile that works under both Linux and
FreeBSD, and don't know how to do this without respecifying the rules
in my Makefiles, unless there is something different about how gcc
runs under both OSes.  How can I tell FreeBSD to link in the libraries
last?

(please respond by reply email to tz@execpc.com)


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