From owner-svn-src-head@freebsd.org Sun Nov 19 22:38:15 2017 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 46380DBFFDD for ; Sun, 19 Nov 2017 22:38:15 +0000 (UTC) (envelope-from markmi@dsl-only.net) Received: from asp.reflexion.net (outbound-mail-210-101.reflexion.net [208.70.210.101]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id CD417664AF for ; Sun, 19 Nov 2017 22:38:13 +0000 (UTC) (envelope-from markmi@dsl-only.net) Received: (qmail 16257 invoked from network); 19 Nov 2017 22:38:07 -0000 Received: from unknown (HELO rtc-sm-01.app.dca.reflexion.local) (10.81.150.1) by 0 (rfx-qmail) with SMTP; 19 Nov 2017 22:38:07 -0000 Received: by rtc-sm-01.app.dca.reflexion.local (Reflexion email security v8.40.3) with SMTP; Sun, 19 Nov 2017 17:38:07 -0500 (EST) Received: (qmail 22903 invoked from network); 19 Nov 2017 22:38:07 -0000 Received: from unknown (HELO iron2.pdx.net) (69.64.224.71) by 0 (rfx-qmail) with (AES256-SHA encrypted) SMTP; 19 Nov 2017 22:38:07 -0000 Received: from [192.168.1.25] (c-76-115-7-162.hsd1.or.comcast.net [76.115.7.162]) by iron2.pdx.net (Postfix) with ESMTPSA id CE6FDEC8F85; Sun, 19 Nov 2017 14:38:06 -0800 (PST) From: Mark Millard Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\)) Subject: Re: svn commit: r325954 - in head: . share/mk sys/conf usr.sbin/config Message-Id: <59284FA3-1659-49D0-A860-366B98B02209@dsl-only.net> Date: Sun, 19 Nov 2017 14:38:06 -0800 To: Pedro Giffuni , svn-src-head@freebsd.org X-Mailer: Apple Mail (2.3273) X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 19 Nov 2017 22:38:15 -0000 Pedro Giffuni pfg at FreeBSD.org wrote on Sun Nov 19 15:29:33 UTC 2017 : > Yes, we should > avoid breaking existing stuff (however old) in ports but no one is > expecting to build modern FreeBSD with gcc 3.4 or even gcc 4.1. We did > what we could with gcc 4.2.1 but it's time is also over. Unfortunately for powerpc64 no alternative works fully. For example: A) With a buildworld by clang and C++ programs linked against the system libraries, any C++ exception thrown causes the program to crash: clang generates bad code in the library. B) Modern gcc's build a lib32 based on generating a messed up crtbeginS.o content (bad register usage) and so 32-bit programs crash. As far as I know gcc 4.2.1 is still the only environment that generally works for powerpc64. [There is no devel/powerpc-gcc like there is a devel/powerpc64-gcc and I've never managed to to make a working powerpc build from a gcc other than 4.2.1 . (A) prevents clang from counting as working overall. So powerpc may be in the same boat as powerpc64 as far as having a known way to build without gcc 4.2.1 goes.] === Mark Millard markmi at dsl-only.net