...found 9 targets... ...updating 4 targets... gcc.compile.c++ libs/config/checks/architecture/bin/gcc-7.4.0/debug/32.o ...updated 4 targets... ...found 2 targets... ...updating 1 target... gcc.compile.c++ libs/config/checks/architecture/bin/gcc-7.4.0/debug/arm.o ...updated 1 target... ...found 107 targets... ...updating 9 targets... gcc.compile.c++ bin.v2/libs/context/build/gcc-7.4.0/debug/threading-multi/visibility-hidden/cxx11_hdr_mutex_check.o In file included from /home/rclinux/rc-buildroot-test/scripts/instance-0/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/rclinux/rc-buildroot-test/scripts/instance-0/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/rclinux/rc-buildroot-test/scripts/instance-0/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 libs/context/src/../build/cxx11_hdr_mutex.cpp:6: /home/rclinux/rc-buildroot-test/scripts/instance-0/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 ^~~~~~~ libs/context/src/../build/cxx11_hdr_mutex.cpp:9:2: error: #error "C++11 is not available." #error "C++11 is not available." ^~~~~ "/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-g++" -fvisibility-inlines-hidden -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -fPIC -pthread -O0 -fno-inline -Wall -g -fvisibility=hidden -DBOOST_ALL_NO_LIB=1 -DBOOST_CONTEXT_DYN_LINK=1 -DBOOST_CONTEXT_SOURCE -I"." -c -o "bin.v2/libs/context/build/gcc-7.4.0/debug/threading-multi/visibility-hidden/cxx11_hdr_mutex_check.o" "libs/context/src/../build/cxx11_hdr_mutex.cpp" ...failed gcc.compile.c++ bin.v2/libs/context/build/gcc-7.4.0/debug/threading-multi/visibility-hidden/cxx11_hdr_mutex_check.o... ...failed updating 1 target... ...updated 8 targets... ...patience... ...found 125 targets... ...updating 8 targets... gcc.compile.c++ bin.v2/libs/thread/build/gcc-7.4.0/debug/threading-multi/visibility-hidden/has_atomic_flag_lockfree_test.o In file included from /home/rclinux/rc-buildroot-test/scripts/instance-0/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/rclinux/rc-buildroot-test/scripts/instance-0/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/rclinux/rc-buildroot-test/scripts/instance-0/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/atomic/detail/config.hpp:18, from ./boost/atomic/capabilities.hpp:17, from ./boost/atomic/atomic.hpp:19, from libs/thread/src/../build/../../../boost/atomic.hpp:12, from libs/thread/src/../build/has_atomic_flag_lockfree_test.cpp:6: /home/rclinux/rc-buildroot-test/scripts/instance-0/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.link bin.v2/libs/thread/build/gcc-7.4.0/debug/threading-multi/visibility-hidden/has_atomic_flag_lockfree /home/rclinux/rc-buildroot-test/scripts/instance-0/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/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-g++" -o "bin.v2/libs/thread/build/gcc-7.4.0/debug/threading-multi/visibility-hidden/has_atomic_flag_lockfree" -Wl,--start-group "bin.v2/libs/thread/build/gcc-7.4.0/debug/threading-multi/visibility-hidden/has_atomic_flag_lockfree_test.o" -Wl,-Bstatic -Wl,-Bdynamic -lrt -Wl,--end-group -fPIC -pthread -g -fvisibility=hidden -fvisibility-inlines-hidden ...failed gcc.link bin.v2/libs/thread/build/gcc-7.4.0/debug/threading-multi/visibility-hidden/has_atomic_flag_lockfree... ...failed updating 1 target... ...updated 7 targets... ...found 8 targets... ...updating 7 targets... gcc.compile.c++ bin.v2/libs/math/config/gcc-7.4.0/debug/threading-multi/visibility-hidden/has_gcc_visibility.o ...updated 7 targets... ...found 23 targets... ...updating 1 target... gcc.compile.c++ bin.v2/libs/math/config/gcc-7.4.0/debug/threading-multi/visibility-hidden/has_long_double_support.o In file included from /home/rclinux/rc-buildroot-test/scripts/instance-0/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/rclinux/rc-buildroot-test/scripts/instance-0/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/rclinux/rc-buildroot-test/scripts/instance-0/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/math/tools/config.hpp:13, from libs/math/config/has_long_double_support.cpp:6: /home/rclinux/rc-buildroot-test/scripts/instance-0/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 ^~~~~~~ ...updated 1 target... ...found 1 target... ...updating 1 target... config-cache.write bin.v2/project-cache.jam ...updated 1 target...