From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 1770 invoked by alias); 20 Jul 2011 12:37:30 -0000 Received: (qmail 1662 invoked by uid 22791); 20 Jul 2011 12:37:29 -0000 X-SWARE-Spam-Status: No, hits=-2.2 required=5.0 tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW X-Spam-Check-By: sourceware.org Received: from mail-vw0-f47.google.com (HELO mail-vw0-f47.google.com) (209.85.212.47) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Wed, 20 Jul 2011 12:36:55 +0000 Received: by vws2 with SMTP id 2so124579vws.20 for ; Wed, 20 Jul 2011 05:36:54 -0700 (PDT) MIME-Version: 1.0 Received: by 10.52.22.81 with SMTP id b17mr7882211vdf.430.1311165414438; Wed, 20 Jul 2011 05:36:54 -0700 (PDT) Received: by 10.52.106.193 with HTTP; Wed, 20 Jul 2011 05:36:54 -0700 (PDT) In-Reply-To: References: Date: Wed, 20 Jul 2011 12:41:00 -0000 Message-ID: Subject: Re: PATCH RFA: Build stages 2 and 3 with C++ From: David Edelsohn To: Jonathan Wakely Cc: Ian Lance Taylor , gcc-patches@gcc.gnu.org, gcc@gcc.gnu.org Content-Type: text/plain; charset=ISO-8859-1 X-IsSubscribed: yes Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org X-SW-Source: 2011-07/txt/msg00378.txt.bz2 On Wed, Jul 20, 2011 at 5:43 AM, Jonathan Wakely wrote: > Paolo has committed a change to that code, does it help the AIX bootstrap issue? Paolo's patch gets me past the debug.cc issue. Using C++ on AIX will greatly increase the bootstrap time on AIX because configure is much slower, even using Bash instead of AIX Ksh. And, as this libstdc++ typo demonstrates, using C++ with the development version of libstdc++ makes the bootstrap process more fragile because bootstrap now relies on a complex, additional codebase that is not stable. GMP, MPFR, MPC, CLooG and PPL add large, external codebases, but at least they do not change from build to build, even if they are built in the tree. - David