[From nobody Fri Aug 7 16:21:08 2026 Received: (at maintonly) by bugs.debian.org; 13 Apr 2026 13:02:53 +0000 X-Spam-Checker-Version: SpamAssassin 4.0.1-bugs.debian.org_2005_01_02 (2024-03-25) on buxtehude.debian.org X-Spam-Level: X-Spam-Status: No, score=-116.7 required=4.0 tests=BAYES_00, BODY_INCLUDES_PACKAGE,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,DKIM_VALID_EF,FROMDEVELOPER,FVGT_m_MULTI_ODD,HAS_PACKAGE, SPF_HELO_NONE,SPF_NONE,UNPARSEABLE_RELAY,USER_IN_DKIM_WELCOMELIST autolearn=ham autolearn_force=no version=4.0.1-bugs.debian.org_2005_01_02 X-Spam-Bayes: score:0.0000 Tokens: new, 66; hammy, 150; neutral, 211; spammy, 0. spammytokens: hammytokens:0.000-+--Hx-spam-relays-external:sk:stravin, 0.000-+--H*RT:sk:stravin, 0.000-+--Hx-spam-relays-external:311, 0.000-+--H*RT:311, 0.000-+--H*RT:108 Return-path: <ema@debian.org> Received: from stravinsky.debian.org ([2001:41b8:202:deb::311:108]:44380) by buxtehude.debian.org with esmtps (TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from <ema@debian.org>) id 1wCGwH-002kTJ-2H for maintonly@bugs.debian.org; Mon, 13 Apr 2026 13:02:53 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=debian.org; s=smtpauto.stravinsky; h=X-Debian-User:Content-Transfer-Encoding:Content-Type :MIME-Version:Message-ID:Subject:To:From:Date:Reply-To:Cc:Content-ID: Content-Description:In-Reply-To:References; bh=CjgwHL7Y4XlELFlSXDiL3qnn95LLDro8g06gpeV82ys=; b=eNDvrduCNPGeVJB8znJzeuGsT1 oPXF6t8tRDlfU52jUJejTssJiHFlyMOnOuCcKK0u7fjG4CFnTDGQfWJzOWg5AGwLn0UFz4tRFVlzf TlUS1kDLQUiIfMHpLt6BWUV58bQDhTmk6lr0E54Bt/4lIVSq5mS6YNLvIkdfYj66owhZ9MgpAP3mj Kwhy6BrpD1PDu8lwn+BflS9A02YBV5nzNiH3K4u0i85mdc/Zj5GigXat8R2eMRQK/6MkQSm1wGfN/ 24YELEn13erl3oEvfTwv4+6/yMHabWpN1PUwjtTS3hZxtXMsGPb3jMG2jK+IOHa/PG2zMVHohh4We DPRLcGeA==; Received: from authenticated user by stravinsky.debian.org with esmtpsa (TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from <ema@debian.org>) id 1wCGwG-00CJE9-0H for maintonly@bugs.debian.org; Mon, 13 Apr 2026 13:02:52 +0000 Date: Mon, 13 Apr 2026 15:02:51 +0200 From: Emanuele Rocca <ema@debian.org> To: maintonly@bugs.debian.org Subject: dune-geometry: ftbfs with GCC-16 Message-ID: <adzpewbyIQDNYury@ariel.home> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit X-Debian-User: ema Delivered-To: maintonly@bugs.debian.org Package: src:dune-geometry Version: 2.11.0-2 Severity: important Tags: sid forky ftbfs User: debian-gcc@lists.debian.org Usertags: ftbfs-gcc-16 Hi, dune-geometry fails to build in a test rebuild on at least amd64 and arm64 with gcc-16/g++-16, but builds properly with gcc-15/g++-15. The severity of this report will be raised before the forky release. The full build log can be found at: https://people.debian.org/~ema/gcc-16-rebuilds/output-1/dune-geometry_arm64.build.xz The last lines of the build log are at the end of this report. To build with GCC 16, either set CC=gcc-16 CXX=g++-16 explicitly, or install the gcc, g++, gfortran, ... packages from experimental. apt-get -t=experimental install g++ Common build failures include unused (but set) variables, array subscripts partly outside array bounds, and new/dropped symbols in Debian symbols files. For other C/C++ related build failures see the porting guide at http://gcc.gnu.org/gcc-16/porting_to.html Please only close this issue after double-checking that the package can be built correctly with GCC 16. Please do not reassign this bug to another package. If a fix in another package is required, then file a bug for the other package (or clone), and mark this bug as blocked by the bug in the other package. [...] In member function ‘Dune::MappedGeometry<Map, Geo>::GlobalCoordinate Dune::MappedGeometry<Map, Geo>::corner(int) const [with Map = AffineMapping<double, 3, 4>; Geo = Dune::Impl::LocalDerivativeGeometry<Dune::MultiLinearGeometry<double, 3, 3, Dune::MultiLinearGeometryTraits<double> > >]’, inlined from ‘bool Dune::checkGeometry(const TestGeometry&) [with TestGeometry = MappedGeometry<AffineMapping<double, 3, 4>, Impl::LocalDerivativeGeometry<MultiLinearGeometry<double, 3, 3, MultiLinearGeometryTraits<double> > > >]’ at /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/test/checkgeometry.hh:124:56: /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/mappedgeometry.hh:158:38: note: parameter passing for argument of type ‘Dune::FieldVector<double, 3>’ when C++17 is enabled changed to match C++14 in GCC 10.1 158 | return mapping()(geometry_.corner(i)); | ~~~~~~~~~~~~~~~~^~~ /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/test/checkgeometry.hh: In function ‘bool Dune::checkGeometry(const TestGeometry&) [with TestGeometry = MappedGeometry<AffineMapping<double, 3, 4>, Impl::LocalDerivativeGeometry<MultiLinearGeometry<double, 3, 3, MultiLinearGeometryTraits<double> > > >]’: /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/test/checkgeometry.hh:178:29: note: parameter passing for argument of type ‘Dune::FieldVector<double, 4>’ when C++17 is enabled changed to match C++14 in GCC 10.1 178 | if( (geometry.corner( i ) - geometry.global( refElement.position( i, mydim ) )).two_norm() > tolerance ) | ~~~~~~~~~~~~~~~^~~~~ In member function ‘Dune::MappedGeometry<Map, Geo>::GlobalCoordinate Dune::MappedGeometry<Map, Geo>::corner(int) const [with Map = AffineMapping<double, 3, 4>; Geo = Dune::Impl::LocalDerivativeGeometry<Dune::MultiLinearGeometry<double, 3, 3, Dune::MultiLinearGeometryTraits<double> > >]’, inlined from ‘bool Dune::checkGeometry(const TestGeometry&) [with TestGeometry = MappedGeometry<AffineMapping<double, 3, 4>, Impl::LocalDerivativeGeometry<MultiLinearGeometry<double, 3, 3, MultiLinearGeometryTraits<double> > > >]’ at /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/test/checkgeometry.hh:178:29: /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/mappedgeometry.hh:158:38: note: parameter passing for argument of type ‘Dune::FieldVector<double, 3>’ when C++17 is enabled changed to match C++14 in GCC 10.1 158 | return mapping()(geometry_.corner(i)); | ~~~~~~~~~~~~~~~~^~~ /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/test/checkgeometry.hh: In function ‘bool Dune::checkGeometry(const TestGeometry&) [with TestGeometry = MappedGeometry<AffineMapping<double, 3, 4>, Impl::LocalDerivativeGeometry<MultiLinearGeometry<double, 3, 3, MultiLinearGeometryTraits<double> > > >]’: /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/test/checkgeometry.hh:67:8: note: parameter passing for argument of type ‘Dune::FieldVector<double, 4>’ when C++17 is enabled changed to match C++14 in GCC 10.1 67 | bool checkGeometry ( const TestGeometry& geometry ) | ^~~~~~~~~~~~~ /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/test/checkgeometry.hh:67:8: note: parameter passing for argument of type ‘Dune::FieldVector<double, 3>’ when C++17 is enabled changed to match C++14 in GCC 10.1 /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/test/checkgeometry.hh:67:8: note: parameter passing for argument of type ‘Dune::FieldVector<double, 4>’ when C++17 is enabled changed to match C++14 in GCC 10.1 /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/test/checkgeometry.hh:67:8: note: parameter passing for argument of type ‘Dune::FieldVector<double, 3>’ when C++17 is enabled changed to match C++14 in GCC 10.1 /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/test/checkgeometry.hh:67:8: note: parameter passing for argument of type ‘Dune::FieldVector<double, 4>’ when C++17 is enabled changed to match C++14 in GCC 10.1 /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/test/checkgeometry.hh:67:8: note: parameter passing for argument of type ‘Dune::FieldVector<double, 3>’ when C++17 is enabled changed to match C++14 in GCC 10.1 /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/test/checkgeometry.hh:67:8: note: parameter passing for argument of type ‘Dune::FieldVector<double, 4>’ when C++17 is enabled changed to match C++14 in GCC 10.1 /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/test/checkgeometry.hh:67:8: note: parameter passing for argument of type ‘Dune::FieldVector<double, 3>’ when C++17 is enabled changed to match C++14 in GCC 10.1 In member function ‘Dune::MappedGeometry<Map, Geo>::GlobalCoordinate Dune::MappedGeometry<Map, Geo>::corner(int) const [with Map = AffineMapping<double, 3, 4>; Geo = Dune::Impl::LocalDerivativeGeometry<Dune::MultiLinearGeometry<double, 3, 3, Dune::MultiLinearGeometryTraits<double> > >]’, inlined from ‘bool Dune::checkGeometry(const TestGeometry&) [with TestGeometry = MappedGeometry<AffineMapping<double, 3, 4>, Impl::LocalDerivativeGeometry<MultiLinearGeometry<double, 3, 3, MultiLinearGeometryTraits<double> > > >]’ at /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/test/checkgeometry.hh:114:35: /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/mappedgeometry.hh:158:21: note: parameter passing for argument of type ‘Dune::FieldVector<double, 4>’ when C++17 is enabled changed to match C++14 in GCC 10.1 158 | return mapping()(geometry_.corner(i)); | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~ In member function ‘Dune::MappedGeometry<Map, Geo>::GlobalCoordinate Dune::MappedGeometry<Map, Geo>::center() const [with Map = AffineMapping<double, 3, 4>; Geo = Dune::Impl::LocalDerivativeGeometry<Dune::MultiLinearGeometry<double, 3, 3, Dune::MultiLinearGeometryTraits<double> > >]’, inlined from ‘bool Dune::checkGeometry(const TestGeometry&) [with TestGeometry = MappedGeometry<AffineMapping<double, 3, 4>, Impl::LocalDerivativeGeometry<MultiLinearGeometry<double, 3, 3, MultiLinearGeometryTraits<double> > > >]’ at /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/test/checkgeometry.hh:117:52: /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/mappedgeometry.hh:164:38: note: parameter passing for argument of type ‘Dune::FieldVector<double, 3>’ when C++17 is enabled changed to match C++14 in GCC 10.1 164 | return mapping()(geometry_.center()); | ~~~~~~~~~~~~~~~~^~ /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/mappedgeometry.hh:164:21: note: parameter passing for argument of type ‘Dune::FieldVector<double, 4>’ when C++17 is enabled changed to match C++14 in GCC 10.1 164 | return mapping()(geometry_.center()); | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~ /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/test/checkgeometry.hh: In function ‘bool Dune::checkGeometry(const TestGeometry&) [with TestGeometry = MappedGeometry<AffineMapping<double, 3, 4>, Impl::LocalDerivativeGeometry<MultiLinearGeometry<double, 3, 3, MultiLinearGeometryTraits<double> > > >]’: /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/test/checkgeometry.hh:200:31: note: parameter passing for argument of type ‘Dune::FieldVector<double, 3>’ when C++17 is enabled changed to match C++14 in GCC 10.1 200 | if ( (x - geometry.local( geometry.global( x ) )).two_norm() > tolerance ) { | ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ In member function ‘Dune::MappedGeometry<Map, Geo>::GlobalCoordinate Dune::MappedGeometry<Map, Geo>::center() const [with Map = AffineMapping<double, 3, 4>; Geo = Dune::Impl::LocalDerivativeGeometry<Dune::MultiLinearGeometry<double, 3, 3, Dune::MultiLinearGeometryTraits<double> > >]’, inlined from ‘bool Dune::checkGeometry(const TestGeometry&) [with TestGeometry = MappedGeometry<AffineMapping<double, 3, 4>, Impl::LocalDerivativeGeometry<MultiLinearGeometry<double, 3, 3, MultiLinearGeometryTraits<double> > > >]’ at /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/test/checkgeometry.hh:117:52: /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/mappedgeometry.hh:164:21: note: parameter passing for argument of type ‘Dune::FieldVector<double, 4>’ when C++17 is enabled changed to match C++14 in GCC 10.1 164 | return mapping()(geometry_.center()); | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~ /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/test/test-multilineargeometry.cc: In function ‘bool testNonLinearGeometry(const Traits&) [with ctype = double; Traits = Dune::MultiLinearGeometryTraits<double>]’: /build/reproducible-path/dune-geometry-2.11.0/dune/geometry/test/test-multilineargeometry.cc:309:40: note: parameter passing for argument of type ‘Dune::FieldVector<double, 2>’ when C++17 is enabled changed to match C++14 in GCC 10.1 309 | const Vector global(geometry.global(local)); | ~~~~~~~~~~~~~~~^~~~~~~ [ 90%] Linking CXX executable test-multilineargeometry cd /build/reproducible-path/dune-geometry-2.11.0/build/dune/geometry/test && /usr/bin/cmake -E cmake_link_script CMakeFiles/test-multilineargeometry.dir/link.txt --verbose=1 /usr/bin/c++ -g -O2 -ffile-prefix-map=/build/reproducible-path/dune-geometry-2.11.0=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -Wdate-time -D_FORTIFY_SOURCE=2 -Wl,-z,relro -Wl,--dependency-file=CMakeFiles/test-multilineargeometry.dir/link.d "CMakeFiles/test-multilineargeometry.dir/test-multilineargeometry.cc.o" -o test-multilineargeometry -Wl,-rpath,/build/reproducible-path/dune-geometry-2.11.0/build/lib ../../../lib/libdunegeometry.so.2.11 /usr/lib/aarch64-linux-gnu/libdunecommon.so.2.11 /usr/lib/aarch64-linux-gnu/liblapack.so /usr/lib/aarch64-linux-gnu/libblas.so make[5]: Leaving directory '/build/reproducible-path/dune-geometry-2.11.0/build' [ 90%] Built target test-multilineargeometry [ 93%] Linking CXX executable test-mappedgeometry cd /build/reproducible-path/dune-geometry-2.11.0/build/dune/geometry/test && /usr/bin/cmake -E cmake_link_script CMakeFiles/test-mappedgeometry.dir/link.txt --verbose=1 /usr/bin/c++ -g -O2 -ffile-prefix-map=/build/reproducible-path/dune-geometry-2.11.0=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -Wdate-time -D_FORTIFY_SOURCE=2 -Wl,-z,relro -Wl,--dependency-file=CMakeFiles/test-mappedgeometry.dir/link.d "CMakeFiles/test-mappedgeometry.dir/test-mappedgeometry.cc.o" -o test-mappedgeometry -Wl,-rpath,/build/reproducible-path/dune-geometry-2.11.0/build/lib ../../../lib/libdunegeometry.so.2.11 /usr/lib/aarch64-linux-gnu/libdunecommon.so.2.11 /usr/lib/aarch64-linux-gnu/liblapack.so /usr/lib/aarch64-linux-gnu/libblas.so make[5]: Leaving directory '/build/reproducible-path/dune-geometry-2.11.0/build' [ 93%] Built target test-mappedgeometry make[4]: Leaving directory '/build/reproducible-path/dune-geometry-2.11.0/build' make[3]: *** [CMakeFiles/Makefile2:1295: CMakeFiles/build_tests.dir/rule] Error 2 make[3]: Leaving directory '/build/reproducible-path/dune-geometry-2.11.0/build' make[2]: *** [Makefile:546: build_tests] Error 2 make[2]: Leaving directory '/build/reproducible-path/dune-geometry-2.11.0/build' dh_auto_build: error: cd build && make -j128 INSTALL="install --strip-program=true" build_tests VERBOSE=1 returned exit code 2 make[1]: *** [/usr/share/dune/dune-debian.mk:38: override_dh_auto_test] Error 25 make[1]: Leaving directory '/build/reproducible-path/dune-geometry-2.11.0' make: *** [debian/rules:12: binary] Error 2 dpkg-buildpackage: error: debian/rules binary subprocess failed with exit status 2 ]