From owner-freebsd-current@FreeBSD.ORG  Fri Feb 18 13:16:05 2011
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 8888D106564A;
	Fri, 18 Feb 2011 13:16:05 +0000 (UTC)
	(envelope-from uqs@spoerlein.net)
Received: from acme.spoerlein.net (acme.spoerlein.net
	[IPv6:2a01:4f8:131:23c2::1])
	by mx1.freebsd.org (Postfix) with ESMTP id 18E968FC16;
	Fri, 18 Feb 2011 13:16:04 +0000 (UTC)
Received: from localhost (acme.spoerlein.net [IPv6:2a01:4f8:131:23c2::1])
	by acme.spoerlein.net (8.14.4/8.14.4) with ESMTP id p1IDG3cw025934
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO);
	Fri, 18 Feb 2011 14:16:03 +0100 (CET)
	(envelope-from uqs@spoerlein.net)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=spoerlein.net;
	s=dkim200908; t=1298034963;
	bh=agaeMwDOINw2QRMo3w55dBfFK7YB7UoFTYbEFWYNxFw=;
	h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version:
	Content-Type:In-Reply-To;
	b=A8V6CDHbZBDy46r2JpoAz9kjaHTP5digXQIxdkPBEiNTZazXqAzjIvN6wtcg0+5Gp
	nrdsbT3IpN3aRCM4jG7MDuOeSBtUIYWWlB6X4Sfxomurk9qM0V5IWmQymxTCiCPKpD
	Zd+sNZgb9jkqsS6zWShyOAcwY2Nxmfagfio8bgeA=
Date: Fri, 18 Feb 2011 14:16:03 +0100
From: Ulrich =?utf-8?B?U3DDtnJsZWlu?= <uqs@spoerlein.net>
To: Alexander Best <arundel@freebsd.org>
Message-ID: <20110218131603.GO65811@acme.spoerlein.net>
Mail-Followup-To: Alexander Best <arundel@freebsd.org>,
	freebsd-current@freebsd.org
References: <20110215211029.GA74471@freebsd.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20110215211029.GA74471@freebsd.org>
User-Agent: Mutt/1.5.21 (2010-09-15)
Cc: freebsd-current@freebsd.org
Subject: Re: $PATH and buildworld not getting along
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 18 Feb 2011 13:16:05 -0000

On Tue, 15.02.2011 at 21:10:29 +0000, Alexander Best wrote:
> hi there,
> 
> i've run into an issue where $PATH doesn't get discarded during buildworld. is
> this behavior to be expected? to reproduce do:
> 
> 1) be sure /usr/local/bin comes *before* /usr/bin in your $PATH
> 2) ln -s /bin/cat /usr/local/bin/cc (some sh script would be better)
> 3) cd /usr/src ; make SRCCONF=/dev/null __MAKE_CONF=/dev/null buildworld
> 4) see how buildworld fails, because cat(1) gets invoked instead of cc(1).
> 
> ... buildkernel on the other hand seems to be immune to such an issue.

The bootstrap stage needs *some* compiler on the host system to build
the (cross)compiler that is then used during the rest of buildworld (and
all of buildkernel). If you remove cc or c++ or libstdc++.so then you're
screwed.

As to whether the user's PATH should be honored for building the
bootstrap/cross/build-tools, I'd say yes.

If, however, the breakage is during the actual build-everything stage,
that would be a problem indeed.

Regards,
Uli