>>> boost 1.71.0 Extracting bzcat /home/br-user/autobuild/run/instance-2/dl/boost/boost_1_71_0.tar.bz2 | tar --strip-components=1 -C /home/br-user/autobuild/run/instance-2/output-1/build/boost-1.71.0 -xf - >>> boost 1.71.0 Patching Applying 0001-fix-ambiguous-format-call-on-64bit-builds.patch using patch: patching file libs/locale/src/icu/formatter.cpp Hunk #1 succeeded at 51 with fuzz 1 (offset -7 lines). Applying 0002-fix-uclibc-eventfd.patch using patch: patching file boost/asio/detail/impl/eventfd_select_interrupter.ipp Applying 0003-fenv.patch using patch: patching file boost/config/platform/linux.hpp Hunk #1 succeeded at 48 (offset 1 line). Applying 0004-add-riscv-endian-detection.patch using patch: patching file boost/predef/other/endian.h >>> boost 1.71.0 Configuring (cd /home/br-user/autobuild/run/instance-2/output-1/build/boost-1.71.0 && ./bootstrap.sh --with-toolset=gcc --without-icu --without-libraries=atomic,container,contract,coroutine,date_time,exception,fiber,graph,graph_parallel,locale,log,math,mpi,python,regex,stacktrace,test,timer,type_erasure,wave) Building Boost.Build engine with toolset gcc... tools/build/src/engine/b2 Unicode/ICU support for Boost.Regex?... disabled. Generating Boost.Build configuration in project-config.jam for gcc... Bootstrapping is done. To build, run: ./b2 To generate header files, run: ./b2 headers To adjust configuration, edit 'project-config.jam'. Further information: - Command line help: ./b2 --help - Getting started guide: http://www.boost.org/more/getting_started/unix-variants.html - Boost.Build documentation: http://www.boost.org/build/ echo "using gcc : `/home/br-user/autobuild/run/instance-2/output-1/host/bin/arm-linux-gcc -dumpversion` : /home/br-user/autobuild/run/instance-2/output-1/host/bin/arm-linux-g++ : \"-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os \" \"\" ;" > /home/br-user/autobuild/run/instance-2/output-1/build/boost-1.71.0/user-config.jam echo "" >> /home/br-user/autobuild/run/instance-2/output-1/build/boost-1.71.0/user-config.jam >>> boost 1.71.0 Building (cd /home/br-user/autobuild/run/instance-2/output-1/build/boost-1.71.0 && PATH="/home/br-user/autobuild/run/instance-2/output-1/host/bin:/home/br-user/autobuild/run/instance-2/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games" ./tools/build/src/engine/bjam -j8 -q --user-config=/home/br-user/autobuild/run/instance-2/output-1/build/boost-1.71.0/user-config.jam --no-cmake-config toolset=gcc threading=multi abi=aapcs variant=release link=shared runtime-link=shared -d+1 --ignore-site-config --layout=system) Performing configuration checks - default address-model : 32-bit - default architecture : arm Building the Boost C++ Libraries. - C++11 mutex : no - lockfree boost::atomic_flag : no - zlib : no - bzip2 : no - lzma : no - zstd : no Component configuration: - atomic : not building - chrono : building - container : not building - context : building - contract : not building - coroutine : not building - date_time : not building - exception : not building - fiber : not building - filesystem : building - graph : not building - graph_parallel : not building - headers : building - iostreams : building - locale : not building - log : not building - math : not building - mpi : not building - program_options : building - python : not building - random : building - regex : not building - serialization : building - stacktrace : not building - system : building - test : not building - thread : building - timer : not building - type_erasure : not building - wave : not building ...patience... ...found 1990 targets... ...updating 198 targets... gcc.compile.asm bin.v2/libs/context/build/gcc-7.4.0/release/abi-aapcs/threadapi-pthread/threading-multi/visibility-hidden/asm/make_arm_aapcs_elf_gas.o gcc.compile.asm bin.v2/libs/context/build/gcc-7.4.0/release/abi-aapcs/threadapi-pthread/threading-multi/visibility-hidden/asm/jump_arm_aapcs_elf_gas.o gcc.compile.c++ bin.v2/libs/atomic/build/gcc-7.4.0/release/threading-multi/visibility-hidden/lockpool.o In file included from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/os_defines.h:39:0, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/c++config.h:533, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/cstddef:49, from libs/atomic/src/lockpool.cpp:15: /home/br-user/autobuild/run/instance-2/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/features.h:218:5: warning: #warning requested reentrant code, but thread support was disabled [-Wcpp] # warning requested reentrant code, but thread support was disabled ^~~~~~~ gcc.compile.asm bin.v2/libs/context/build/gcc-7.4.0/release/abi-aapcs/threadapi-pthread/threading-multi/visibility-hidden/asm/ontop_arm_aapcs_elf_gas.o gcc.compile.c++ bin.v2/libs/thread/build/gcc-7.4.0/release/threadapi-pthread/threading-multi/visibility-hidden/pthread/once.o In file included from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/os_defines.h:39:0, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/c++config.h:533, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/cstddef:49, from ./boost/config/compiler/gcc.hpp:165, from ./boost/config.hpp:39, from ./boost/thread/detail/config.hpp:11, from libs/thread/src/pthread/once.cpp:6: /home/br-user/autobuild/run/instance-2/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/features.h:218:5: warning: #warning requested reentrant code, but thread support was disabled [-Wcpp] # warning requested reentrant code, but thread support was disabled ^~~~~~~ In file included from ./boost/thread/detail/platform.hpp:17:0, from ./boost/thread/detail/config.hpp:13, from libs/thread/src/pthread/once.cpp:6: ./boost/config/requires_threads.hpp:29:4: error: #error "Threading support unavaliable: it has been explicitly disabled with BOOST_DISABLE_THREADS" # error "Threading support unavaliable: it has been explicitly disabled with BOOST_DISABLE_THREADS" ^~~~~ In file included from libs/thread/src/pthread/./once_atomic.cpp:10:0, from libs/thread/src/pthread/once.cpp:8: ./boost/thread/pthread/pthread_helpers.hpp:12:10: fatal error: pthread.h: No such file or directory #include ^~~~~~~~~~~ compilation terminated. "/home/br-user/autobuild/run/instance-2/output-1/host/bin/arm-linux-g++" -fvisibility-inlines-hidden -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -fPIC -pthread -O3 -finline-functions -Wno-inline -Wall -fvisibility=hidden -Wextra -Wno-long-long -Wno-unused-parameter -Wunused-function -pedantic -DBOOST_ALL_NO_LIB=1 -DBOOST_ATOMIC_DYN_LINK=1 -DBOOST_THREAD_BUILD_DLL=1 -DBOOST_THREAD_DONT_USE_CHRONO -DBOOST_THREAD_POSIX -DNDEBUG -I"." -c -o "bin.v2/libs/thread/build/gcc-7.4.0/release/threadapi-pthread/threading-multi/visibility-hidden/pthread/once.o" "libs/thread/src/pthread/once.cpp" ...failed gcc.compile.c++ bin.v2/libs/thread/build/gcc-7.4.0/release/threadapi-pthread/threading-multi/visibility-hidden/pthread/once.o... gcc.link.dll bin.v2/libs/atomic/build/gcc-7.4.0/release/threading-multi/visibility-hidden/libboost_atomic.so.1.71.0 /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/7.4.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/ld: cannot find -lpthread collect2: error: ld returned 1 exit status "/home/br-user/autobuild/run/instance-2/output-1/host/bin/arm-linux-g++" -o "bin.v2/libs/atomic/build/gcc-7.4.0/release/threading-multi/visibility-hidden/libboost_atomic.so.1.71.0" -Wl,-h -Wl,libboost_atomic.so.1.71.0 -shared -Wl,--start-group "bin.v2/libs/atomic/build/gcc-7.4.0/release/threading-multi/visibility-hidden/lockpool.o" -Wl,-Bstatic -Wl,-Bdynamic -lrt -Wl,--end-group -fPIC -pthread -fvisibility=hidden -fvisibility-inlines-hidden ...failed gcc.link.dll bin.v2/libs/atomic/build/gcc-7.4.0/release/threading-multi/visibility-hidden/libboost_atomic.so.1.71.0... ...skipped

libboost_atomic.so.1.71.0 for lack of libboost_atomic.so.1.71.0... ...skipped

libboost_atomic.so.1 for lack of

libboost_atomic.so.1.71.0... gcc.compile.c++ bin.v2/libs/thread/build/gcc-7.4.0/release/threadapi-pthread/threading-multi/visibility-hidden/pthread/thread.o In file included from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/os_defines.h:39:0, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/c++config.h:533, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/cstddef:49, from ./boost/config/compiler/gcc.hpp:165, from ./boost/config.hpp:39, from ./boost/thread/detail/config.hpp:11, from libs/thread/src/pthread/thread.cpp:9: /home/br-user/autobuild/run/instance-2/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/features.h:218:5: warning: #warning requested reentrant code, but thread support was disabled [-Wcpp] # warning requested reentrant code, but thread support was disabled ^~~~~~~ In file included from ./boost/thread/detail/platform.hpp:17:0, from ./boost/thread/detail/config.hpp:13, from libs/thread/src/pthread/thread.cpp:9: ./boost/config/requires_threads.hpp:29:4: error: #error "Threading support unavaliable: it has been explicitly disabled with BOOST_DISABLE_THREADS" # error "Threading support unavaliable: it has been explicitly disabled with BOOST_DISABLE_THREADS" ^~~~~ In file included from ./boost/thread/mutex.hpp:16:0, from ./boost/thread/pthread/thread_data.hpp:13, from ./boost/thread/thread_only.hpp:17, from libs/thread/src/pthread/thread.cpp:11: ./boost/thread/pthread/mutex.hpp:11:10: fatal error: pthread.h: No such file or directory #include ^~~~~~~~~~~ compilation terminated. "/home/br-user/autobuild/run/instance-2/output-1/host/bin/arm-linux-g++" -fvisibility-inlines-hidden -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -fPIC -pthread -O3 -finline-functions -Wno-inline -Wall -fvisibility=hidden -Wextra -Wno-long-long -Wno-unused-parameter -Wunused-function -pedantic -DBOOST_ALL_NO_LIB=1 -DBOOST_ATOMIC_DYN_LINK=1 -DBOOST_THREAD_BUILD_DLL=1 -DBOOST_THREAD_DONT_USE_CHRONO -DBOOST_THREAD_POSIX -DNDEBUG -I"." -c -o "bin.v2/libs/thread/build/gcc-7.4.0/release/threadapi-pthread/threading-multi/visibility-hidden/pthread/thread.o" "libs/thread/src/pthread/thread.cpp" ...failed gcc.compile.c++ bin.v2/libs/thread/build/gcc-7.4.0/release/threadapi-pthread/threading-multi/visibility-hidden/pthread/thread.o... gcc.compile.c++ bin.v2/libs/chrono/build/gcc-7.4.0/release/threading-multi/visibility-hidden/thread_clock.o In file included from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/os_defines.h:39:0, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/c++config.h:533, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/cstddef:49, from ./boost/config/compiler/gcc.hpp:165, from ./boost/config.hpp:39, from ./boost/chrono/config.hpp:15, from ./boost/chrono/detail/inlined/thread_clock.hpp:14, from libs/chrono/src/thread_clock.cpp:18: /home/br-user/autobuild/run/instance-2/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/features.h:218:5: warning: #warning requested reentrant code, but thread support was disabled [-Wcpp] # warning requested reentrant code, but thread support was disabled ^~~~~~~ gcc.compile.c++ bin.v2/libs/thread/build/gcc-7.4.0/release/threadapi-pthread/threading-multi/visibility-hidden/future.o In file included from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/os_defines.h:39:0, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/c++config.h:533, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/cstddef:49, from ./boost/config/compiler/gcc.hpp:165, from ./boost/config.hpp:39, from ./boost/thread/detail/config.hpp:11, from libs/thread/src/future.cpp:6: /home/br-user/autobuild/run/instance-2/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/features.h:218:5: warning: #warning requested reentrant code, but thread support was disabled [-Wcpp] # warning requested reentrant code, but thread support was disabled ^~~~~~~ In file included from ./boost/thread/detail/platform.hpp:17:0, from ./boost/thread/detail/config.hpp:13, from libs/thread/src/future.cpp:6: ./boost/config/requires_threads.hpp:29:4: error: #error "Threading support unavaliable: it has been explicitly disabled with BOOST_DISABLE_THREADS" # error "Threading support unavaliable: it has been explicitly disabled with BOOST_DISABLE_THREADS" ^~~~~ "/home/br-user/autobuild/run/instance-2/output-1/host/bin/arm-linux-g++" -fvisibility-inlines-hidden -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -fPIC -pthread -O3 -finline-functions -Wno-inline -Wall -fvisibility=hidden -Wextra -Wno-long-long -Wno-unused-parameter -Wunused-function -pedantic -DBOOST_ALL_NO_LIB=1 -DBOOST_ATOMIC_DYN_LINK=1 -DBOOST_THREAD_BUILD_DLL=1 -DBOOST_THREAD_DONT_USE_CHRONO -DBOOST_THREAD_POSIX -DNDEBUG -I"." -c -o "bin.v2/libs/thread/build/gcc-7.4.0/release/threadapi-pthread/threading-multi/visibility-hidden/future.o" "libs/thread/src/future.cpp" ...failed gcc.compile.c++ bin.v2/libs/thread/build/gcc-7.4.0/release/threadapi-pthread/threading-multi/visibility-hidden/future.o... gcc.compile.c++ bin.v2/libs/context/build/gcc-7.4.0/release/abi-aapcs/threadapi-pthread/threading-multi/visibility-hidden/execution_context.o In file included from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/os_defines.h:39:0, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/c++config.h:533, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/utility:68, from ./boost/context/detail/config.hpp:11, from libs/context/src/execution_context.cpp:7: /home/br-user/autobuild/run/instance-2/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/features.h:218:5: warning: #warning requested reentrant code, but thread support was disabled [-Wcpp] # warning requested reentrant code, but thread support was disabled ^~~~~~~ gcc.compile.c++ bin.v2/libs/filesystem/build/gcc-7.4.0/release/threading-multi/visibility-hidden/codecvt_error_category.o In file included from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/os_defines.h:39:0, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/c++config.h:533, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/cstddef:49, from ./boost/config/compiler/gcc.hpp:165, from ./boost/config.hpp:39, from ./boost/filesystem/config.hpp:28, from libs/filesystem/src/codecvt_error_category.cpp:22: /home/br-user/autobuild/run/instance-2/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/features.h:218:5: warning: #warning requested reentrant code, but thread support was disabled [-Wcpp] # warning requested reentrant code, but thread support was disabled ^~~~~~~ gcc.compile.c++ bin.v2/libs/filesystem/build/gcc-7.4.0/release/threading-multi/visibility-hidden/path_traits.o In file included from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/os_defines.h:39:0, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/c++config.h:533, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/cstddef:49, from ./boost/config/compiler/gcc.hpp:165, from ./boost/config.hpp:39, from ./boost/filesystem/config.hpp:28, from libs/filesystem/src/path_traits.cpp:20: /home/br-user/autobuild/run/instance-2/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/features.h:218:5: warning: #warning requested reentrant code, but thread support was disabled [-Wcpp] # warning requested reentrant code, but thread support was disabled ^~~~~~~ gcc.compile.c++ bin.v2/libs/chrono/build/gcc-7.4.0/release/threading-multi/visibility-hidden/chrono.o In file included from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/os_defines.h:39:0, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/c++config.h:533, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/cstddef:49, from ./boost/config/compiler/gcc.hpp:165, from ./boost/config.hpp:39, from ./boost/chrono/config.hpp:15, from ./boost/chrono/duration.hpp:33, from ./boost/chrono/chrono.hpp:11, from ./boost/chrono/detail/inlined/chrono.hpp:13, from libs/chrono/src/chrono.cpp:14: /home/br-user/autobuild/run/instance-2/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/features.h:218:5: warning: #warning requested reentrant code, but thread support was disabled [-Wcpp] # warning requested reentrant code, but thread support was disabled ^~~~~~~ gcc.compile.c++ bin.v2/libs/iostreams/build/gcc-7.4.0/release/threading-multi/visibility-hidden/mapped_file.o In file included from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/os_defines.h:39:0, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/c++config.h:533, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/cassert:43, from libs/iostreams/src/mapped_file.cpp:13: /home/br-user/autobuild/run/instance-2/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/features.h:218:5: warning: #warning requested reentrant code, but thread support was disabled [-Wcpp] # warning requested reentrant code, but thread support was disabled ^~~~~~~ gcc.compile.c++ bin.v2/libs/filesystem/build/gcc-7.4.0/release/threading-multi/visibility-hidden/operations.o In file included from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/os_defines.h:39:0, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/arm-buildroot-linux-uclibcgnueabihf/bits/c++config.h:533, from /home/br-user/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/arm-buildroot-linux-uclibcgnueabihf/include/c++/7.4.0/cstddef:49, from ./boost/config/compiler/gcc.hpp:165, from ./boost/config.hpp:39, from ./boost/filesystem/operations.hpp:18, from libs/filesystem/src/operations.cpp:68: /home/br-user/autobuild/run/instance-2/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/features.h:218:5: warning: #warning requested reentrant code, but thread support was disabled [-Wcpp] # warning requested reentrant code, but thread support was disabled ^~~~~~~ ...failed updating 4 targets... ...skipped 2 targets... ...updated 54 targets... package/pkg-generic.mk:257: recipe for target '/home/br-user/autobuild/run/instance-2/output-1/build/boost-1.71.0/.stamp_built' failed make: *** [/home/br-user/autobuild/run/instance-2/output-1/build/boost-1.71.0/.stamp_built] Error 1 make: Leaving directory '/home/br-user/autobuild/run/instance-2/buildroot'