From owner-svn-src-head@FreeBSD.ORG  Wed Sep 15 02:31:51 2010
Return-Path: <owner-svn-src-head@FreeBSD.ORG>
Delivered-To: svn-src-head@FreeBSD.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 31BF1106564A;
	Wed, 15 Sep 2010 02:31:51 +0000 (UTC) (envelope-from imp@bsdimp.com)
Received: from harmony.bsdimp.com (bsdimp.com [199.45.160.85])
	by mx1.freebsd.org (Postfix) with ESMTP id E56B48FC08;
	Wed, 15 Sep 2010 02:31:50 +0000 (UTC)
Received: from localhost (localhost [127.0.0.1])
	by harmony.bsdimp.com (8.14.3/8.14.1) with ESMTP id o8F2TUbY081838;
	Tue, 14 Sep 2010 20:29:31 -0600 (MDT) (envelope-from imp@bsdimp.com)
Date: Tue, 14 Sep 2010 20:29:36 -0600 (MDT)
Message-Id: <20100914.202936.19192035460743630.imp@bsdimp.com>
To: dougb@FreeBSD.org
From: "M. Warner Losh" <imp@bsdimp.com>
In-Reply-To: <4C9020C5.90108@FreeBSD.org>
References: <201009131530.o8DFU9f5010734@svn.freebsd.org>
	<4C9020C5.90108@FreeBSD.org>
X-Mailer: Mew version 6.3 on Emacs 22.3 / Mule 5.0 (SAKAKI)
Mime-Version: 1.0
Content-Type: Text/Plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Cc: svn-src-head@FreeBSD.org, svn-src-all@FreeBSD.org,
	src-committers@FreeBSD.org
Subject: Re: svn commit: r212558 - head/usr.bin
X-BeenThere: svn-src-head@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: SVN commit messages for the src tree for head/-current
	<svn-src-head.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-head>
List-Post: <mailto:svn-src-head@freebsd.org>
List-Help: <mailto:svn-src-head-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 15 Sep 2010 02:31:51 -0000

In message: <4C9020C5.90108@FreeBSD.org>
            Doug Barton <dougb@FreeBSD.org> writes:
: On 9/13/2010 8:30 AM, Warner Losh wrote:
: > Author: imp
: > Date: Mon Sep 13 15:30:09 2010
: > New Revision: 212558
: > URL: http://svn.freebsd.org/changeset/base/212558
: >
: > Log:
: >    Move to using Makefile.arch to include the proper target-specific
: >    programs.
: >
: > Modified:
: >    head/usr.bin/Makefile
: >
: > Modified: head/usr.bin/Makefile
: > ==============================================================================
: > --- head/usr.bin/Makefile	Mon Sep 13 15:19:49 2010	(r212557)
: > +++ head/usr.bin/Makefile Mon Sep 13 15:30:09 2010 (r212558)
: > @@ -11,48 +11,29 @@
: >
: >   SUBDIR=	alias \
: >   	apply \
: > -	${_ar} \
: 
: >   .if ${MK_TOOLCHAIN} != "no"
: > -_ar=		ar
: 
: > +SUBDIR+=	ar
: 
: 
: I'm curious about why you're changing the method we use to switch
: optional elements. The change seems gratuitous to me, but I'm willing
: to be persuaded.

I posted these exact patches many times to arch@ and while people
commented on other aspects of the change, no body ever commented on
this aspect of the change (apart from comments about how to do it
better).  That's why I specifically said that there was no objection
from arch@ for these changes.

Doing things this way makes it easier for different architectures to
subset or augment the directories to build (and it makes it a lot
easier to know what's built on a given architecture).  They can be
concentrated into individual Makefiles that are easier to select on.
MIPS and ARM are both moving to having multiple names (powerpc moved a
couple of months ago) and the current arrangement doesn't scale well
in the face of these changes.  It is far from gratuitous.

Warner