From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from albireo.enyo.de (albireo.enyo.de [37.24.231.21]) by sourceware.org (Postfix) with ESMTPS id 25A983858D34 for ; Wed, 22 Apr 2020 15:19:14 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 25A983858D34 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=deneb.enyo.de Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=fw@deneb.enyo.de Received: from [172.17.203.2] (helo=deneb.enyo.de) by albireo.enyo.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) id 1jRH9c-0002L3-KZ; Wed, 22 Apr 2020 15:19:12 +0000 Received: from fw by deneb.enyo.de with local (Exim 4.92) (envelope-from ) id 1jRH9c-0006Iz-HQ; Wed, 22 Apr 2020 17:19:12 +0200 From: Florian Weimer To: "Paul E. Murphy via Libc-alpha" Subject: Re: [PATCH v3 3/6] powerpc64le: raise GCC requirement to 7.4 for long double transition References: Date: Wed, 22 Apr 2020 17:19:12 +0200 In-Reply-To: (Paul E. Murphy via Libc-alpha's message of "Mon, 6 Apr 2020 14:12:36 -0500") Message-ID: <87lfmnim4v.fsf@mid.deneb.enyo.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-21.3 required=5.0 tests=BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, KAM_DMARC_STATUS, 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: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Apr 2020 15:19:15 -0000 * Paul E. Murphy via Libc-alpha: > diff --git a/manual/install.texi b/manual/install.texi > index 71bf47cac6..66de8ea59b 100644 > --- a/manual/install.texi > +++ b/manual/install.texi > @@ -507,6 +507,11 @@ the newest version of the compiler that is known to = work for building > release time, GCC 9.2.1 is the newest compiler verified to work to build > @theglibc{}. >=20=20 > +For PowerPC 64-bits little-endian (powerpc64le), a GCC version with > +support for @option{-mno-gnu-attribute} is required. As of release time, > +this means GCC 7.4 (excepting 7.5) or newer. The compiler option is requ= ired > +for building the GNU C Library with support for IEEE long double. Why =E2=80=9Cexcepting 7.5=E2=80=9D? Somewhere, there should be an explana= tion, maybe in a @c comment in the Texinfo sources if it's too confusing to end users. Also, missing two spaces at the end of sentences. And quick question for my understanding: Could we get the effect of -mno-gnu-attribute using strip if we wanted? (Not that I think this change is required, I'm fine with bumping the minimum GCC requirement.)