From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: 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 20FCB3858411 for ; Mon, 3 Jan 2022 15:25:07 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 20FCB3858411 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-83-p4xPIsFhPeSbj4ZbGgVlvw-1; Mon, 03 Jan 2022 10:24:57 -0500 X-MC-Unique: p4xPIsFhPeSbj4ZbGgVlvw-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id AFFA4802C91; Mon, 3 Jan 2022 15:24:55 +0000 (UTC) Received: from tucnak.zalov.cz (unknown [10.2.16.169]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 3411E7FB95; Mon, 3 Jan 2022 15:24:54 +0000 (UTC) Received: from tucnak.zalov.cz (localhost [127.0.0.1]) by tucnak.zalov.cz (8.16.1/8.16.1) with ESMTPS id 203FOqhR1355933 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Mon, 3 Jan 2022 16:24:52 +0100 Received: (from jakub@localhost) by tucnak.zalov.cz (8.16.1/8.16.1/Submit) id 203FOoxS1355932; Mon, 3 Jan 2022 16:24:50 +0100 Date: Mon, 3 Jan 2022 16:24:50 +0100 From: Jakub Jelinek To: Thomas Koenig Cc: Michael Meissner , Bill Schmidt , "fortran@gcc.gnu.org" , Segher Boessenkool , Peter Bergner , David Edelsohn , gcc-patches@gcc.gnu.org Subject: [power-ieee128] libquadmath: Use -mno-gnu-attribute in libquadmath Message-ID: <20220103152450.GK2664@tucnak> Reply-To: Jakub Jelinek MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 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=-5.4 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=unavailable autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: fortran@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Fortran mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Jan 2022 15:25:08 -0000 Hi! Testing found that we also need libquadmath to be built with -mno-gnu-attribute, otherwise -mabi=ieeelongdouble programs don't link. Ok for power-ieee128? 2022-01-03 Jakub Jelinek * configure.ac: Set XCFLAGS to -mno-gnu-attribute on powerpc64le*-linux*. * configure: Regenerated. --- libquadmath/configure.ac +++ libquadmath/configure.ac @@ -352,6 +352,19 @@ fi # Add CET specific flags if CET is enabled GCC_CET_FLAGS(CET_FLAGS) XCFLAGS="$XCFLAGS $CET_FLAGS" + +case x$target in + xpowerpc64le*-linux*) + AC_PREPROC_IFELSE( + [AC_LANG_PROGRAM([[#if __SIZEOF_LONG_DOUBLE__ != 16 + #error long double is double + #endif]], + [[(void) 0;]])], + [XCFLAGS="$XCFLAGS -mno-gnu-attribute"]) + ;; + *) + ;; +esac AC_SUBST(XCFLAGS) AC_CACHE_SAVE --- libquadmath/configure +++ libquadmath/configure @@ -13096,6 +13096,30 @@ fi XCFLAGS="$XCFLAGS $CET_FLAGS" +case x$target in + xpowerpc64le*-linux*) + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#if __SIZEOF_LONG_DOUBLE__ != 16 + #error long double is double + #endif +int +main () +{ +(void) 0; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + XCFLAGS="$XCFLAGS -mno-gnu-attribute" +fi +rm -f conftest.err conftest.i conftest.$ac_ext + ;; + *) + ;; +esac + cat >confcache <<\_ACEOF # This file is a shell script that caches the results of configure Jakub