From patchwork Thu Apr 28 09:46:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Wakely X-Patchwork-Id: 1623537 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org header.a=rsa-sha256 header.s=default header.b=cHrBlWUG; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org (client-ip=2620:52:3:1:0:246e:9693:128c; helo=sourceware.org; envelope-from=gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org; receiver=) Received: from sourceware.org (server2.sourceware.org [IPv6:2620:52:3:1:0:246e:9693:128c]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4KprP51BvLz9s2R for ; Thu, 28 Apr 2022 19:46:48 +1000 (AEST) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id C86773857366 for ; Thu, 28 Apr 2022 09:46:45 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C86773857366 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1651139205; bh=2a3fQmnLlX9/QpD/MDG3OzJ0H/1Y9JArvX0QvJI9gn8=; h=To:Subject:Date:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:From; b=cHrBlWUGcYczsXApWpYFudDq/DVGQmy5WPBfoI5AkXwXsJs/+7VYMBEbEO+AF6W4l b7V05DzjIQNx/r1+YsAnA/uPYa2A70h26PirrpcDWXCJjlOMZLEWoUSASqw1e4kCsi qWzSSuQm2NsayQ5QkAO6ziMMlMsOeQtxFl4ZHgMs= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by sourceware.org (Postfix) with ESMTPS id D9565385734D for ; Thu, 28 Apr 2022 09:46:20 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org D9565385734D Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-643-rPH8v-rSP0q1VF-TaCSKGA-1; Thu, 28 Apr 2022 05:46:19 -0400 X-MC-Unique: rPH8v-rSP0q1VF-TaCSKGA-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id A67563804522; Thu, 28 Apr 2022 09:46:18 +0000 (UTC) Received: from localhost (unknown [10.33.36.192]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6DCC62166B4D; Thu, 28 Apr 2022 09:46:18 +0000 (UTC) To: gcc-patches@gcc.gnu.org Subject: [PATCH] doc: Remove misleading text about multilibs for IEEE long double Date: Thu, 28 Apr 2022 10:46:17 +0100 Message-Id: <20220428094617.2298788-1-jwakely@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-Spam-Status: No, score=-13.0 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_DNSWL_LOW, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) 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-Patchwork-Original-From: Jonathan Wakely via Gcc-patches From: Jonathan Wakely Reply-To: Jonathan Wakely Errors-To: gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org Sender: "Gcc-patches" IIUC this text is not true (maybe it was back in 2018?) OK for trunk? Which branches should it be on too, all of them? -- >8 -- The choice of ieee or ibm long double format is orthogonal to multilibs, as the two sets of symbols co-exist and don't need a separate multilib. gcc/ChangeLog: * doc/install.texi (Configuration): Remove misleading text around LE PowerPC Linux multilibs. --- gcc/doc/install.texi | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi index 3192824bdc4..10bfceffceb 100644 --- a/gcc/doc/install.texi +++ b/gcc/doc/install.texi @@ -2139,17 +2139,6 @@ Until all of the libraries are converted to use IEEE 128-bit floating point, it is not recommended to use @option{--with-long-double-format=ieee}. -On little endian PowerPC Linux systems, if you explicitly set the -@code{long double} type, it will build multilibs to allow you to -select either @code{long double} format, unless you disable multilibs -with the @code{--disable-multilib} option. At present, -@code{long double} multilibs are not built on big endian PowerPC Linux -systems. If you are building multilibs, you will need to configure -the compiler using the @option{--with-system-zlib} option. - -If you do not set the @code{long double} type explicitly, no multilibs -will be generated. - @item --enable-fdpic On SH Linux systems, generate ELF FDPIC code.