From owner-freebsd-current  Sat Jun 22 07:21:08 1996
Return-Path: owner-current
Received: (from root@localhost)
          by freefall.freebsd.org (8.7.5/8.7.3) id HAA03569
          for current-outgoing; Sat, 22 Jun 1996 07:21:08 -0700 (PDT)
Received: from mail.cs.tu-berlin.de (root@mail.cs.tu-berlin.de [130.149.17.13])
          by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id HAA03549
          for <current@freebsd.org>; Sat, 22 Jun 1996 07:20:57 -0700 (PDT)
Received: from campa.panke.de (anonymous218.ppp.cs.tu-berlin.de [130.149.17.218]) by mail.cs.tu-berlin.de (8.6.12/8.6.12) with ESMTP id QAA06702; Sat, 22 Jun 1996 16:06:50 +0200
Received: (from wosch@localhost) by campa.panke.de (8.6.12/8.6.12) id QAA05748; Sat, 22 Jun 1996 16:01:43 +0200
Date: Sat, 22 Jun 1996 16:01:43 +0200
From: Wolfram Schneider <wosch@cs.tu-berlin.de>
Message-Id: <199606221401.QAA05748@campa.panke.de>
To: "Jordan K. Hubbard" <jkh@time.cdrom.com>
Cc: current@freebsd.org
Subject: Wanted: Testers for an alternate to /usr/obj (as we know it).
In-Reply-To: <24932.835409971@time.cdrom.com>
References: <24932.835409971@time.cdrom.com>
Reply-to: Wolfram Schneider <wosch@cs.tu-berlin.de>
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 8bit
Sender: owner-current@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk

Jordan K. Hubbard writes:
>In case you ISPs out there haven't twigged to the significance of this
>yet either, with these changes you can now keep a single copy of
>/usr/src up to date for any number of machines, having simultaneous
>`make worlds' run from a single NFS mounted source partition on
>multiple clients with none of the mutual interferance problems we have
>now.  That's why *I* wanted this feature, anyway! :-)

Jordan, 

this already works with the current bsd.obj.mk ;-))))


Example: 

$ mkdir /tmp/obj	# temp obj tree
$ cd /a/current/src/lkm		

# compile for obj-mavic, set CFLAGS or other variables
$ env BSDOBJDIR=/tmp/obj MAKEOBJDIR=obj-mavic make -I \
	/a/current/src/share/mk obj depend all

# compile for obj-campa, set CFLAGS or other variables
$ env BSDOBJDIR=/tmp/obj MAKEOBJDIR=obj-campa make -I \
	/a/current/src/share/mk obj depend all


Now you have two differently symlinks to different obj directories.

$ cd /a/current/src/lkm/cd9660
$ ls -l
total 4
drwxrwxr-x  2 wosch  wheel  512 May 29 15:46 CVS
-rw-rw-r--  1 wosch  wheel  285 Sep 22  1994 Makefile
lrwxrwxr-x  1 wosch  wheel   43 Jun 22 14:55 obj-campa -> /tmp/obj/a/current/src/lkm/cd9660/obj-campa
lrwxrwxr-x  1 wosch  wheel   43 Jun 22 14:55 obj-mavic -> /tmp/obj/a/current/src/lkm/cd9660/obj-mavic

Wolfram