[From nobody Thu Oct 8 17:21:09 2026 Received: (at maintonly) by bugs.debian.org; 13 Apr 2026 13:02:33 +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, 130; hammy, 150; neutral, 297; 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]:34992) 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 1wCGvx-002kPy-0N for maintonly@bugs.debian.org; Mon, 13 Apr 2026 13:02:33 +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=GY63DXOSiZa8kc6LLdlFEIQ/KoH2ThnprEjlVdBIGYU=; b=DPdc+jzqTGvz3SzB7fiVjNunQO XSWP2eZYYPleW3pFS0KvcfGMs4LWCwgKnvDlvnaiGy5LFZrk1KjM3qNHtUWZFZsZ00ogPyVl9S9B6 HMrf1jas6bRR1KDLEJBrBSOpFA+SvpMpxaG2YVCJ71khCWihi9/VaBHpJ+UeXzS/gkv1ubBOveO8v cFAliHVzuWHZrgs9L6a0TAdNlMZ7P36Tb3a6Oz3X6DVTIUO0WlpsDK7MBX0W85xuEYT2nJ5t16V4K FAR8srteT2FSAwlLGKLzIoasrUsyiGfrtQoyGfWTfwDMph+9oa+xR3RgDKoqOOmCB39w2DyeACpkL E3U0IIPg==; 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 1wCGvv-00CJDV-1l for maintonly@bugs.debian.org; Mon, 13 Apr 2026 13:02:31 +0000 Date: Mon, 13 Apr 2026 15:02:31 +0200 From: Emanuele Rocca <ema@debian.org> To: maintonly@bugs.debian.org Subject: dart: ftbfs with GCC-16 Message-ID: <adzpZ9i88PTj2rC5@ariel.home> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable X-Debian-User: ema Delivered-To: maintonly@bugs.debian.org Package: src:dart Version: 6.13.2+ds-3 Severity: important Tags: sid forky ftbfs User: debian-gcc@lists.debian.org Usertags: ftbfs-gcc-16 Hi, dart 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/dart_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=3Dgcc-16 CXX=3Dg++-16 explicitly, or install the gcc, g++, gfortran, ... packages from experimental. apt-get -t=3Dexperimental install g++=20 Common build failures include unused (but set) variables, array subscripts partly outside array bounds, and new/dropped symbols in Debian symbols file= s. 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 pac= kage 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. [...] /build/reproducible-path/dart-6.13.2+ds/dart/optimizer/Function.cpp:132:19:= note: add explicit =E2=80=98this=E2=80=99 or =E2=80=98*this=E2=80=99 captu= re [ 40%] Building CXX object dart/CMakeFiles/dart.dir/constraint/LCPSolver.cp= p.o cd /build/reproducible-path/dart-6.13.2+ds/.pybuild/cpython3_3.13/build/dar= t && /usr/bin/c++ -DDART_ACTIVE_LOG_LEVEL=3D2 -DDART_HAVE_spdlog=3D1 -DFMT_= HEADER_ONLY=3D1 -DFMT_SHARED -DSPDLOG_FMT_EXTERNAL -DSPDLOG_FWRITE_UNLOCKED= -Ddart_EXPORTS -I/build/reproducible-path/dart-6.13.2+ds -I/build/reproduc= ible-path/dart-6.13.2+ds/.pybuild/cpython3_3.13/build -isystem /usr/include= /eigen3 -g -O2 -ffile-prefix-map=3D/build/reproducible-path/dart-6.13.2+ds= =3D. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=3Df= ormat-security -mbranch-protection=3Dstandard -Wdate-time -D_FORTIFY_SOURCE= =3D2 -fPIC -Wno-array-bounds -Wno-dangling-pointer -Wno-maybe-uninitialized= -Wno-stringop-overflow -Wno-uninitialized -Wall -Wextra -fPIC -Werror -Wno= -overloaded-virtual -Wno-alloc-size-larger-than -MD -MT dart/CMakeFiles/dar= t.dir/constraint/LCPSolver.cpp.o -MF CMakeFiles/dart.dir/constraint/LCPSolv= er.cpp.o.d -o CMakeFiles/dart.dir/constraint/LCPSolver.cpp.o -c /build/repr= oducible-path/dart-6.13.2+ds/dart/constraint/LCPSolver.cpp [ 40%] Building CXX object dart/CMakeFiles/dart.dir/constraint/MimicMotorCo= nstraint.cpp.o cd /build/reproducible-path/dart-6.13.2+ds/.pybuild/cpython3_3.13/build/dar= t && /usr/bin/c++ -DDART_ACTIVE_LOG_LEVEL=3D2 -DDART_HAVE_spdlog=3D1 -DFMT_= HEADER_ONLY=3D1 -DFMT_SHARED -DSPDLOG_FMT_EXTERNAL -DSPDLOG_FWRITE_UNLOCKED= -Ddart_EXPORTS -I/build/reproducible-path/dart-6.13.2+ds -I/build/reproduc= ible-path/dart-6.13.2+ds/.pybuild/cpython3_3.13/build -isystem /usr/include= /eigen3 -g -O2 -ffile-prefix-map=3D/build/reproducible-path/dart-6.13.2+ds= =3D. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=3Df= ormat-security -mbranch-protection=3Dstandard -Wdate-time -D_FORTIFY_SOURCE= =3D2 -fPIC -Wno-array-bounds -Wno-dangling-pointer -Wno-maybe-uninitialized= -Wno-stringop-overflow -Wno-uninitialized -Wall -Wextra -fPIC -Werror -Wno= -overloaded-virtual -Wno-alloc-size-larger-than -MD -MT dart/CMakeFiles/dar= t.dir/constraint/MimicMotorConstraint.cpp.o -MF CMakeFiles/dart.dir/constra= int/MimicMotorConstraint.cpp.o.d -o CMakeFiles/dart.dir/constraint/MimicMot= orConstraint.cpp.o -c /build/reproducible-path/dart-6.13.2+ds/dart/constrai= nt/MimicMotorConstraint.cpp [ 40%] Building CXX object dart/CMakeFiles/dart.dir/constraint/PGSLCPSolver= =2Ecpp.o cd /build/reproducible-path/dart-6.13.2+ds/.pybuild/cpython3_3.13/build/dar= t && /usr/bin/c++ -DDART_ACTIVE_LOG_LEVEL=3D2 -DDART_HAVE_spdlog=3D1 -DFMT_= HEADER_ONLY=3D1 -DFMT_SHARED -DSPDLOG_FMT_EXTERNAL -DSPDLOG_FWRITE_UNLOCKED= -Ddart_EXPORTS -I/build/reproducible-path/dart-6.13.2+ds -I/build/reproduc= ible-path/dart-6.13.2+ds/.pybuild/cpython3_3.13/build -isystem /usr/include= /eigen3 -g -O2 -ffile-prefix-map=3D/build/reproducible-path/dart-6.13.2+ds= =3D. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=3Df= ormat-security -mbranch-protection=3Dstandard -Wdate-time -D_FORTIFY_SOURCE= =3D2 -fPIC -Wno-array-bounds -Wno-dangling-pointer -Wno-maybe-uninitialized= -Wno-stringop-overflow -Wno-uninitialized -Wall -Wextra -fPIC -Werror -Wno= -overloaded-virtual -Wno-alloc-size-larger-than -MD -MT dart/CMakeFiles/dar= t.dir/constraint/PGSLCPSolver.cpp.o -MF CMakeFiles/dart.dir/constraint/PGSL= CPSolver.cpp.o.d -o CMakeFiles/dart.dir/constraint/PGSLCPSolver.cpp.o -c /b= uild/reproducible-path/dart-6.13.2+ds/dart/constraint/PGSLCPSolver.cpp [ 40%] Building CXX object dart/CMakeFiles/dart.dir/constraint/PgsBoxedLcpS= olver.cpp.o cd /build/reproducible-path/dart-6.13.2+ds/.pybuild/cpython3_3.13/build/dar= t && /usr/bin/c++ -DDART_ACTIVE_LOG_LEVEL=3D2 -DDART_HAVE_spdlog=3D1 -DFMT_= HEADER_ONLY=3D1 -DFMT_SHARED -DSPDLOG_FMT_EXTERNAL -DSPDLOG_FWRITE_UNLOCKED= -Ddart_EXPORTS -I/build/reproducible-path/dart-6.13.2+ds -I/build/reproduc= ible-path/dart-6.13.2+ds/.pybuild/cpython3_3.13/build -isystem /usr/include= /eigen3 -g -O2 -ffile-prefix-map=3D/build/reproducible-path/dart-6.13.2+ds= =3D. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=3Df= ormat-security -mbranch-protection=3Dstandard -Wdate-time -D_FORTIFY_SOURCE= =3D2 -fPIC -Wno-array-bounds -Wno-dangling-pointer -Wno-maybe-uninitialized= -Wno-stringop-overflow -Wno-uninitialized -Wall -Wextra -fPIC -Werror -Wno= -overloaded-virtual -Wno-alloc-size-larger-than -MD -MT dart/CMakeFiles/dar= t.dir/constraint/PgsBoxedLcpSolver.cpp.o -MF CMakeFiles/dart.dir/constraint= /PgsBoxedLcpSolver.cpp.o.d -o CMakeFiles/dart.dir/constraint/PgsBoxedLcpSol= ver.cpp.o -c /build/reproducible-path/dart-6.13.2+ds/dart/constraint/PgsBox= edLcpSolver.cpp [ 40%] Building CXX object dart/CMakeFiles/dart.dir/constraint/ServoMotorCo= nstraint.cpp.o cd /build/reproducible-path/dart-6.13.2+ds/.pybuild/cpython3_3.13/build/dar= t && /usr/bin/c++ -DDART_ACTIVE_LOG_LEVEL=3D2 -DDART_HAVE_spdlog=3D1 -DFMT_= HEADER_ONLY=3D1 -DFMT_SHARED -DSPDLOG_FMT_EXTERNAL -DSPDLOG_FWRITE_UNLOCKED= -Ddart_EXPORTS -I/build/reproducible-path/dart-6.13.2+ds -I/build/reproduc= ible-path/dart-6.13.2+ds/.pybuild/cpython3_3.13/build -isystem /usr/include= /eigen3 -g -O2 -ffile-prefix-map=3D/build/reproducible-path/dart-6.13.2+ds= =3D. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=3Df= ormat-security -mbranch-protection=3Dstandard -Wdate-time -D_FORTIFY_SOURCE= =3D2 -fPIC -Wno-array-bounds -Wno-dangling-pointer -Wno-maybe-uninitialized= -Wno-stringop-overflow -Wno-uninitialized -Wall -Wextra -fPIC -Werror -Wno= -overloaded-virtual -Wno-alloc-size-larger-than -MD -MT dart/CMakeFiles/dar= t.dir/constraint/ServoMotorConstraint.cpp.o -MF CMakeFiles/dart.dir/constra= int/ServoMotorConstraint.cpp.o.d -o CMakeFiles/dart.dir/constraint/ServoMot= orConstraint.cpp.o -c /build/reproducible-path/dart-6.13.2+ds/dart/constrai= nt/ServoMotorConstraint.cpp cc1plus: all warnings being treated as errors make[3]: *** [dart/CMakeFiles/dart.dir/build.make:544: dart/CMakeFiles/dart= =2Edir/optimizer/Function.cpp.o] Error 1 make[3]: *** Waiting for unfinished jobs.... cc1plus: all warnings being treated as errors make[3]: *** [dart/CMakeFiles/dart.dir/build.make:1846: dart/CMakeFiles/dar= t.dir/collision/fcl/FCLTypes.cpp.o] Error 1 /build/reproducible-path/dart-6.13.2+ds/dart/dynamics/InverseKinematics.cpp= : In lambda function: /build/reproducible-path/dart-6.13.2+ds/dart/dynamics/InverseKinematics.cpp= :1052:21: error: implicit capture of =E2=80=98this=E2=80=99 via =E2=80=98[= =3D]=E2=80=99 is deprecated in C++20 [-Werror=3Ddeprecated] 1052 | auto comparator =3D [=3D](const Solution& s1, const Solution& s2)= { | ^ /build/reproducible-path/dart-6.13.2+ds/dart/dynamics/InverseKinematics.cpp= :1052:21: note: add explicit =E2=80=98this=E2=80=99 or =E2=80=98*this=E2=80= =99 capture /build/reproducible-path/dart-6.13.2+ds/dart/dynamics/InverseKinematics.cpp= : In lambda function: /build/reproducible-path/dart-6.13.2+ds/dart/dynamics/InverseKinematics.cpp= :1847:7: error: implicit capture of =E2=80=98this=E2=80=99 via =E2=80=98[= =3D]=E2=80=99 is deprecated in C++20 [-Werror=3Ddeprecated] 1847 | [=3D](const Entity*) { this->clearCaches(); }); | ^ /build/reproducible-path/dart-6.13.2+ds/dart/dynamics/InverseKinematics.cpp= :1847:7: note: add explicit =E2=80=98this=E2=80=99 or =E2=80=98*this=E2=80= =99 capture /build/reproducible-path/dart-6.13.2+ds/dart/dynamics/InverseKinematics.cpp= : In lambda function: /build/reproducible-path/dart-6.13.2+ds/dart/dynamics/InverseKinematics.cpp= :1856:7: error: implicit capture of =E2=80=98this=E2=80=99 via =E2=80=98[= =3D]=E2=80=99 is deprecated in C++20 [-Werror=3Ddeprecated] 1856 | [=3D](const Entity*) { this->clearCaches(); }); | ^ /build/reproducible-path/dart-6.13.2+ds/dart/dynamics/InverseKinematics.cpp= :1856:7: note: add explicit =E2=80=98this=E2=80=99 or =E2=80=98*this=E2=80= =99 capture cc1plus: all warnings being treated as errors make[3]: *** [dart/CMakeFiles/dart.dir/build.make:1790: dart/CMakeFiles/dar= t.dir/collision/fcl/BackwardCompatibility.cpp.o] Error 1 [ 42%] Linking CXX shared library libdart-external-lodepng.so cd /build/reproducible-path/dart-6.13.2+ds/.pybuild/cpython3_3.13/build/dar= t/external/lodepng && /usr/bin/cmake -E cmake_link_script CMakeFiles/dart-e= xternal-lodepng.dir/link.txt --verbose=3D1 /usr/bin/c++ -fPIC -g -O2 -ffile-prefix-map=3D/build/reproducible-path/dart= -6.13.2+ds=3D. -fstack-protector-strong -fstack-clash-protection -Wformat -= Werror=3Dformat-security -mbranch-protection=3Dstandard -Wdate-time -D_FORT= IFY_SOURCE=3D2 -shared -Wl,--no-undefined -Wl,-z,relro -Wl,-z,now -Wl,--dep= endency-file=3DCMakeFiles/dart-external-lodepng.dir/link.d -Wl,-soname,libd= art-external-lodepng.so.6.13 -o libdart-external-lodepng.so.6.13.2 "CMakeFi= les/dart-external-lodepng.dir/lodepng.cpp.o" cd /build/reproducible-path/dart-6.13.2+ds/.pybuild/cpython3_3.13/build/dar= t/external/lodepng && /usr/bin/cmake -E cmake_symlink_library libdart-exter= nal-lodepng.so.6.13.2 libdart-external-lodepng.so.6.13 libdart-external-lod= epng.so make[3]: Leaving directory '/build/reproducible-path/dart-6.13.2+ds/.pybuil= d/cpython3_3.13/build' [ 42%] Built target dart-external-lodepng /build/reproducible-path/dart-6.13.2+ds/dart/dynamics/DegreeOfFreedom.cpp: = In member function =E2=80=98std::pair<double, double> dart::dynamics::Degre= eOfFreedom::getPositionLimits() const=E2=80=99: /build/reproducible-path/dart-6.13.2+ds/dart/dynamics/DegreeOfFreedom.cpp:1= 35:64: note: parameter passing for argument of type =E2=80=98std::pair<doub= le, double>=E2=80=99 when C++17 is enabled changed to match C++14 in GCC 10= =2E1 135 | std::pair<double, double> DegreeOfFreedom::getPositionLimits() const | ^~~~~ [ 42%] Linking CXX shared library libdart-external-imgui.so cd /build/reproducible-path/dart-6.13.2+ds/.pybuild/cpython3_3.13/build/dar= t/external/imgui && /usr/bin/cmake -E cmake_link_script CMakeFiles/dart-ext= ernal-imgui.dir/link.txt --verbose=3D1 /usr/bin/c++ -fPIC -g -O2 -ffile-prefix-map=3D/build/reproducible-path/dart= -6.13.2+ds=3D. -fstack-protector-strong -fstack-clash-protection -Wformat -= Werror=3Dformat-security -mbranch-protection=3Dstandard -Wdate-time -D_FORT= IFY_SOURCE=3D2 -shared -Wl,--no-undefined -Wl,-z,relro -Wl,-z,now -Wl,--dep= endency-file=3DCMakeFiles/dart-external-imgui.dir/link.d -Wl,-soname,libdar= t-external-imgui.so.6.13 -o libdart-external-imgui.so.6.13.2 "CMakeFiles/da= rt-external-imgui.dir/imgui.cpp.o" "CMakeFiles/dart-external-imgui.dir/imgu= i_draw.cpp.o" "CMakeFiles/dart-external-imgui.dir/imgui_impl_opengl2.cpp.o"= "CMakeFiles/dart-external-imgui.dir/imgui_tables.cpp.o" "CMakeFiles/dart-e= xternal-imgui.dir/imgui_widgets.cpp.o" /usr/lib/aarch64-linux-gnu/libGLX.s= o /usr/lib/aarch64-linux-gnu/libOpenGL.so cd /build/reproducible-path/dart-6.13.2+ds/.pybuild/cpython3_3.13/build/dar= t/external/imgui && /usr/bin/cmake -E cmake_symlink_library libdart-externa= l-imgui.so.6.13.2 libdart-external-imgui.so.6.13 libdart-external-imgui.so make[3]: Leaving directory '/build/reproducible-path/dart-6.13.2+ds/.pybuil= d/cpython3_3.13/build' [ 42%] Built target dart-external-imgui cc1plus: all warnings being treated as errors make[3]: *** [dart/CMakeFiles/dart.dir/build.make:1412: dart/CMakeFiles/dar= t.dir/dynamics/VoxelGridShape.cpp.o] Error 1 cc1plus: all warnings being treated as errors make[3]: *** [dart/CMakeFiles/dart.dir/build.make:1832: dart/CMakeFiles/dar= t.dir/collision/fcl/FCLCollisionObject.cpp.o] Error 1 cc1plus: all warnings being treated as errors make[3]: *** [dart/CMakeFiles/dart.dir/build.make:1818: dart/CMakeFiles/dar= t.dir/collision/fcl/FCLCollisionGroup.cpp.o] Error 1 cc1plus: all warnings being treated as errors make[3]: *** [dart/CMakeFiles/dart.dir/build.make:1804: dart/CMakeFiles/dar= t.dir/collision/fcl/FCLCollisionDetector.cpp.o] Error 1 cc1plus: all warnings being treated as errors make[3]: *** [dart/CMakeFiles/dart.dir/build.make:1930: dart/CMakeFiles/dar= t.dir/constraint/ConstraintSolver.cpp.o] Error 1 cc1plus: all warnings being treated as errors make[3]: *** [dart/CMakeFiles/dart.dir/build.make:978: dart/CMakeFiles/dart= =2Edir/dynamics/InverseKinematics.cpp.o] Error 1 make[3]: Leaving directory '/build/reproducible-path/dart-6.13.2+ds/.pybuil= d/cpython3_3.13/build' make[2]: *** [CMakeFiles/Makefile2:2747: dart/CMakeFiles/dart.dir/all] Erro= r 2 make[2]: Leaving directory '/build/reproducible-path/dart-6.13.2+ds/.pybuil= d/cpython3_3.13/build' make[1]: *** [Makefile:149: all] Error 2 make[1]: Leaving directory '/build/reproducible-path/dart-6.13.2+ds/.pybuil= d/cpython3_3.13/build' dh_auto_build: error: cd .pybuild/cpython3_3.13/build && make -j128 INSTALL= =3D"install --strip-program=3Dtrue" VERBOSE=3D1 returned exit code 2 E: pybuild pybuild:485: build: plugin cmake failed with: exit code=3D25: dh= _auto_build --buildsystem=3Dcmake --builddirectory=3D/build/reproducible-pa= th/dart-6.13.2+ds/.pybuild/cpython3_3.13/build --=20 dh_auto_build: error: pybuild --build -i python{version} -p "3.14 3.13" --p= arallel=3D128 returned exit code 13 make: *** [debian/rules:19: binary] Error 25 dpkg-buildpackage: error: debian/rules binary subprocess failed with exit s= tatus 2 ]