This package currently fails to build (at least on the amd64 architecture) with link time optimizations enabled. For a background for LTO please see https://wiki.debian.org/ToolChain/LTO The goal is to enable this optimization by default in an upcoming Debian release in dpkg-buildflags for 64bit architectures. The goal is to get this package to build with link time optimizations, or to explicitly disable link time optimizations for this package build. To reproduce the build failure, enable the lto optimization in testing/unstable by adding "optimize=+lto" to DEB_BUILD_MAINT_OPTIONS in the debian/rules file, or if this macro is unset, just set it: export DEB_BUILD_MAINT_OPTIONS = optimize=+lto Please try to fix the build with lto enabled, fixing the packaging or forwarding the issue upstream. If the issue cannot be fixed, explicitly disallow building the package with lto by adding to your rules file: export DEB_BUILD_MAINT_OPTIONS = optimize=-lto or adding that string to your existing setting of DEB_BUILD_MAINT_OPTIONS. The full build log can be found at: http://qa-logs.debian.net/2022/06/09/dpkglto/sptag_0.0~git20220211.c640c3c+ds-1_unstable_dpkglto.log The last lines of the build log are at the end of this report. [...] cd "/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/Test" && /usr/bin/c++ -DBOOST_ALL_NO_LIB -DBOOST_FILESYSTEM_DYN_LINK -DBOOST_SYSTEM_DYN_LINK -DBOOST_TEST_DYN_LINK -DBOOST_UNIT_TEST_FRAMEWORK_DYN_LINK -I"/<<PKGBUILDDIR>>/AnnService" -I"/<<PKGBUILDDIR>>/Test" -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. -flto=auto -ffat-lto-objects -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -Wall -Wunreachable-code -Wno-reorder -Wno-sign-compare -Wno-unknown-pragmas -Wcast-align -lm -lrt -fopenmp -fopenmp -std=gnu++14 -MD -MT Test/CMakeFiles/SPTAGTest.dir/src/StringConvertTest.cpp.o -MF CMakeFiles/SPTAGTest.dir/src/StringConvertTest.cpp.o.d -o CMakeFiles/SPTAGTest.dir/src/StringConvertTest.cpp.o -c "/<<PKGBUILDDIR>>/Test/src/StringConvertTest.cpp" /<<PKGBUILDDIR>>/Test/src/ReconstructIndexSimilarityTest.cpp: In instantiation of ‘void GenerateReconstructData(std::shared_ptr<SPTAG::VectorSet>&, std::shared_ptr<SPTAG::VectorSet>&, std::shared_ptr<SPTAG::VectorSet>&, std::shared_ptr<SPTAG::MetadataSet>&, std::shared_ptr<SPTAG::VectorSet>&, std::shared_ptr<SPTAG::VectorSet>&, SPTAG::DistCalcMethod, int) [with R = float]’: /<<PKGBUILDDIR>>/Test/src/ReconstructIndexSimilarityTest.cpp:352:31: required from ‘void ReconstructTest(SPTAG::IndexAlgoType, SPTAG::DistCalcMethod) [with R = float]’ /<<PKGBUILDDIR>>/Test/src/ReconstructIndexSimilarityTest.cpp:380:27: required from here /<<PKGBUILDDIR>>/Test/src/ReconstructIndexSimilarityTest.cpp:248:62: warning: comparison with string literal results in unspecified behavior [-Waddress] 248 | BOOST_ASSERT("Canot Open CODEBOOK_FILE to read!" == "Error"); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~ /<<PKGBUILDDIR>>/Test/src/ReconstructIndexSimilarityTest.cpp:324:63: warning: comparison with string literal results in unspecified behavior [-Waddress] 324 | BOOST_ASSERT("Canot Open CODEBOOK_FILE to write!" == "Error"); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~ /<<PKGBUILDDIR>>/Test/src/ReconstructIndexSimilarityTest.cpp:330:62: warning: comparison with string literal results in unspecified behavior [-Waddress] 330 | BOOST_ASSERT("Canot Open CODEBOOK_FILE to read!" == "Error"); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~ [ 98%] Building CXX object Test/CMakeFiles/SPTAGTest.dir/src/main.cpp.o cd "/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/Test" && /usr/bin/c++ -DBOOST_ALL_NO_LIB -DBOOST_FILESYSTEM_DYN_LINK -DBOOST_SYSTEM_DYN_LINK -DBOOST_TEST_DYN_LINK -DBOOST_UNIT_TEST_FRAMEWORK_DYN_LINK -I"/<<PKGBUILDDIR>>/AnnService" -I"/<<PKGBUILDDIR>>/Test" -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. -flto=auto -ffat-lto-objects -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -Wall -Wunreachable-code -Wno-reorder -Wno-sign-compare -Wno-unknown-pragmas -Wcast-align -lm -lrt -fopenmp -fopenmp -std=gnu++14 -MD -MT Test/CMakeFiles/SPTAGTest.dir/src/main.cpp.o -MF CMakeFiles/SPTAGTest.dir/src/main.cpp.o.d -o CMakeFiles/SPTAGTest.dir/src/main.cpp.o -c "/<<PKGBUILDDIR>>/Test/src/main.cpp" [ 99%] Linking CXX shared library ../_SPTAGClient.so cd "/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/Wrappers" && /usr/bin/cmake -E cmake_link_script CMakeFiles/_SPTAGClient.dir/link.txt --verbose=1 /usr/bin/c++ -fPIC -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. -flto=auto -ffat-lto-objects -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -Wall -Wunreachable-code -Wno-reorder -Wno-sign-compare -Wno-unknown-pragmas -Wcast-align -lm -lrt -fopenmp -fopenmp -flto=auto -ffat-lto-objects -Wl,-z,relro -Wl,-z,now -shared -Wl,-soname,_SPTAGClient.so -o ../_SPTAGClient.so CMakeFiles/_SPTAGClient.dir/__/AnnService/src/Client/ClientWrapper.cpp.o CMakeFiles/_SPTAGClient.dir/__/AnnService/src/Client/Options.cpp.o CMakeFiles/_SPTAGClient.dir/__/AnnService/src/Client/main.cpp.o CMakeFiles/_SPTAGClient.dir/__/AnnService/src/Socket/Client.cpp.o CMakeFiles/_SPTAGClient.dir/__/AnnService/src/Socket/Common.cpp.o CMakeFiles/_SPTAGClient.dir/__/AnnService/src/Socket/Connection.cpp.o CMakeFiles/_SPTAGClient.dir/__/AnnService/src/Socket/ConnectionManager.cpp.o CMakeFiles/_SPTAGClient.dir/__/AnnService/src/Socket/Packet.cpp.o CMakeFiles/_SPTAGClient.dir/__/AnnService/src/Socket/RemoteSearchQuery.cpp.o CMakeFiles/_SPTAGClient.dir/__/AnnService/src/Socket/Server.cpp.o CMakeFiles/_SPTAGClient.dir/src/ClientInterface.cpp.o CMakeFiles/_SPTAGClient.dir/__/ClientInterface_pwrap.cpp.o ../libSPTAGLibStatic.a /usr/lib/x86_64-linux-gnu/libpython3.10.so /usr/lib/x86_64-linux-gnu/libboost_system.so.1.74.0 ../libDistanceUtils.a make[3]: Leaving directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu' [ 99%] Built target sptag-server make[3]: Leaving directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu' [ 99%] Built target _SPTAGClient [100%] Linking CXX executable ../SPTAGTest cd "/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/Test" && /usr/bin/cmake -E cmake_link_script CMakeFiles/SPTAGTest.dir/link.txt --verbose=1 /usr/bin/c++ -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. -flto=auto -ffat-lto-objects -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -Wall -Wunreachable-code -Wno-reorder -Wno-sign-compare -Wno-unknown-pragmas -Wcast-align -lm -lrt -fopenmp -fopenmp -flto=auto -ffat-lto-objects -Wl,-z,relro -Wl,-z,now CMakeFiles/SPTAGTest.dir/src/AlgoTest.cpp.o CMakeFiles/SPTAGTest.dir/src/Base64HelperTest.cpp.o CMakeFiles/SPTAGTest.dir/src/CommonHelperTest.cpp.o CMakeFiles/SPTAGTest.dir/src/ConcurrentTest.cpp.o CMakeFiles/SPTAGTest.dir/src/DistanceTest.cpp.o CMakeFiles/SPTAGTest.dir/src/IniReaderTest.cpp.o CMakeFiles/SPTAGTest.dir/src/PerfTest.cpp.o CMakeFiles/SPTAGTest.dir/src/ReconstructIndexSimilarityTest.cpp.o CMakeFiles/SPTAGTest.dir/src/SSDServingTest.cpp.o CMakeFiles/SPTAGTest.dir/src/StringConvertTest.cpp.o CMakeFiles/SPTAGTest.dir/src/main.cpp.o -o ../SPTAGTest ../libSPTAGLibStatic.a ../libsptag-ssdservingLib.a /usr/lib/x86_64-linux-gnu/libboost_filesystem.so.1.74.0 /usr/lib/x86_64-linux-gnu/libboost_unit_test_framework.so.1.74.0 ../libSPTAGLibStatic.a ../libDistanceUtils.a /usr/lib/x86_64-linux-gnu/libboost_system.so.1.74.0 make[3]: Leaving directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu' [100%] Built target SPTAGTest make[2]: Leaving directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu' /usr/bin/cmake -E cmake_progress_start "/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/CMakeFiles" 0 make[1]: Leaving directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu' debian/rules override_dh_auto_test make[1]: Entering directory '/<<PKGBUILDDIR>>' dh_auto_test -- ARGS+="--timeout 10800" cd obj-x86_64-linux-gnu && make -j8 test ARGS\+=--verbose ARGS\+=-j8 "ARGS+=--timeout 10800" make[2]: Entering directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu' Running tests... /usr/bin/ctest --force-new-ctest-process --verbose -j8 --timeout 10800 UpdateCTestConfiguration from :/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/DartConfiguration.tcl Parse Config file:/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/DartConfiguration.tcl UpdateCTestConfiguration from :/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/DartConfiguration.tcl Parse Config file:/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/DartConfiguration.tcl Test project /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu Constructing a list of tests Done constructing a list of tests Updating test list for fixtures Added 0 tests to meet fixture requirements Checking test dependency graph... Checking test dependency graph end test 1 Start 1: SPTAGTest 1: Test command: /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/SPTAGTest 1: Test timeout computed to be: 10800 1/1 Test #1: SPTAGTest ........................***Exception: SegFault 0.02 sec 0% tests passed, 1 tests failed out of 1 Total Test time (real) = 0.02 sec The following tests FAILED: 1 - SPTAGTest (SEGFAULT) Errors while running CTest make[2]: *** [Makefile:74: test] Error 8 make[2]: Leaving directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu' dh_auto_test: error: cd obj-x86_64-linux-gnu && make -j8 test ARGS\+=--verbose ARGS\+=-j8 "ARGS+=--timeout 10800" returned exit code 2 make[1]: *** [debian/rules:28: override_dh_auto_test] Error 25 make[1]: Leaving directory '/<<PKGBUILDDIR>>' make: *** [debian/rules:25: binary] Error 2 dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2