From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-1.mimecast.com (us-smtp-1.mimecast.com [207.211.31.81]) by sourceware.org (Postfix) with ESMTP id 117813840C11 for ; Thu, 14 May 2020 21:09:25 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 117813840C11 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-205-zVy6PZ6wPLSZoXRCtnS3eg-1; Thu, 14 May 2020 17:09:23 -0400 X-MC-Unique: zVy6PZ6wPLSZoXRCtnS3eg-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 6E59418C35AC for ; Thu, 14 May 2020 21:09:09 +0000 (UTC) Received: from tucnak.zalov.cz (ovpn-112-83.ams2.redhat.com [10.36.112.83]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 073D55C1BE; Thu, 14 May 2020 21:09:08 +0000 (UTC) Received: from tucnak.zalov.cz (localhost [127.0.0.1]) by tucnak.zalov.cz (8.15.2/8.15.2) with ESMTP id 04EL9514015485; Thu, 14 May 2020 23:09:06 +0200 Received: (from jakub@localhost) by tucnak.zalov.cz (8.15.2/8.15.2/Submit) id 04EL950v015484; Thu, 14 May 2020 23:09:05 +0200 Date: Thu, 14 May 2020 23:09:05 +0200 From: Jakub Jelinek To: Jason Merrill Cc: gcc-patches@gcc.gnu.org Subject: Re: [PATCH RFC] bootstrap: Update requirement to C++11. Message-ID: <20200514210905.GW8462@tucnak> Reply-To: Jakub Jelinek References: <20200514210559.4449-1-jason@redhat.com> MIME-Version: 1.0 In-Reply-To: <20200514210559.4449-1-jason@redhat.com> User-Agent: Mutt/1.11.3 (2019-02-01) X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Spam-Status: No, score=-10.2 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 May 2020 21:09:26 -0000 On Thu, May 14, 2020 at 05:05:59PM -0400, Jason Merrill via Gcc-patches wrote: > +Versions of GCC prior to 11 also allow bootstrapping with an ISO C++98 > +compiler, versions of GCC prior to 4.8 also allow bootstrapping with a > +ISO C89 compiler, and versions of GCC prior to 3.4 also allow > +bootstrapping with a traditional (K&R) C compiler. > > To build all languages in a cross-compiler or other configuration where > 3-stage bootstrap is not performed, you need to start with an existing > -GCC binary (version 3.4 or later) because source code for language > +GCC binary (version 4.8 or later) because source code for language > frontends other than C might use GCC extensions. > > Note that to bootstrap GCC with versions of GCC earlier than 3.4, you Probably this paragraph needs adjustments too. Jakub