...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/buildroot/autobuild/run/instance-3/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/buildroot/autobuild/run/instance-3/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/buildroot/autobuild/run/instance-3/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/buildroot/autobuild/run/instance-3/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 <mutex> is not available."
 #error "C++11 <mutex> is not available."
  ^~~~~

    "/home/buildroot/autobuild/run/instance-3/output-1/host/bin/arm-linux-g++"   -fvisibility-inlines-hidden -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -static -static -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/buildroot/autobuild/run/instance-3/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/buildroot/autobuild/run/instance-3/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/buildroot/autobuild/run/instance-3/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/buildroot/autobuild/run/instance-3/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/buildroot/autobuild/run/instance-3/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/buildroot/autobuild/run/instance-3/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  -static 

...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 11 targets...
...updating 9 targets...
gcc.compile.c++ bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/zlib_h.o
In file included from /home/buildroot/autobuild/run/instance-3/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/limits.h:26:0,
                 from /home/buildroot/autobuild/run/instance-3/output-1/host/opt/ext-toolchain/lib/gcc/arm-buildroot-linux-uclibcgnueabihf/7.4.0/include-fixed/limits.h:194,
                 from /home/buildroot/autobuild/run/instance-3/output-1/host/opt/ext-toolchain/lib/gcc/arm-buildroot-linux-uclibcgnueabihf/7.4.0/include-fixed/syslimits.h:7,
                 from /home/buildroot/autobuild/run/instance-3/output-1/host/opt/ext-toolchain/lib/gcc/arm-buildroot-linux-uclibcgnueabihf/7.4.0/include-fixed/limits.h:34,
                 from /home/buildroot/autobuild/run/instance-3/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/zconf.h:418,
                 from /home/buildroot/autobuild/run/instance-3/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/zlib.h:34,
                 from bin.v2/standalone/ac/zlib_h.cpp:1:
/home/buildroot/autobuild/run/instance-3/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 9 targets...
...found 8 targets...
...updating 6 targets...
gcc.compile.c++ bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-z.o
gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/z
/home/buildroot/autobuild/run/instance-3/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/buildroot/autobuild/run/instance-3/output-1/host/bin/arm-linux-g++"    -o "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/z" -Wl,--start-group "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-z.o"   -lz  -lrt -Wl,--end-group -pthread -fvisibility=hidden -fvisibility-inlines-hidden -static  -static 

...failed gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/z...
...failed updating 1 target...
...updated 5 targets...
...found 5 targets...
...updating 3 targets...
gcc.compile.c++ bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-zlib.o
gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/zlib
/home/buildroot/autobuild/run/instance-3/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/7.4.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/ld: cannot find -lzlib
collect2: error: ld returned 1 exit status

    "/home/buildroot/autobuild/run/instance-3/output-1/host/bin/arm-linux-g++"    -o "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/zlib" -Wl,--start-group "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-zlib.o"   -lzlib  -lrt -Wl,--end-group -pthread -fvisibility=hidden -fvisibility-inlines-hidden -static  -static 

...failed gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/zlib...
...failed updating 1 target...
...updated 2 targets...
...found 5 targets...
...updating 3 targets...
gcc.compile.c++ bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-zll.o
gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/zll
/home/buildroot/autobuild/run/instance-3/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/7.4.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/ld: cannot find -lzll
collect2: error: ld returned 1 exit status

    "/home/buildroot/autobuild/run/instance-3/output-1/host/bin/arm-linux-g++"    -o "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/zll" -Wl,--start-group "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-zll.o"   -lzll  -lrt -Wl,--end-group -pthread -fvisibility=hidden -fvisibility-inlines-hidden -static  -static 

...failed gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/zll...
...failed updating 1 target...
...updated 2 targets...
...found 5 targets...
...updating 3 targets...
gcc.compile.c++ bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-zdll.o
gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/zdll
/home/buildroot/autobuild/run/instance-3/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/7.4.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/ld: cannot find -lzdll
collect2: error: ld returned 1 exit status

    "/home/buildroot/autobuild/run/instance-3/output-1/host/bin/arm-linux-g++"    -o "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/zdll" -Wl,--start-group "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-zdll.o"   -lzdll  -lrt -Wl,--end-group -pthread -fvisibility=hidden -fvisibility-inlines-hidden -static  -static 

...failed gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/zdll...
...failed updating 1 target...
...updated 2 targets...
...found 4 targets...
...updating 2 targets...
gcc.compile.c++ bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/bzlib_h.o
In file included from /home/buildroot/autobuild/run/instance-3/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/stdio.h:27:0,
                 from /home/buildroot/autobuild/run/instance-3/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/bzlib.h:75,
                 from bin.v2/standalone/ac/bzlib_h.cpp:1:
/home/buildroot/autobuild/run/instance-3/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 2 targets...
...found 5 targets...
...updating 3 targets...
gcc.compile.c++ bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-bz2.o
gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/bz2
/home/buildroot/autobuild/run/instance-3/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/buildroot/autobuild/run/instance-3/output-1/host/bin/arm-linux-g++"    -o "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/bz2" -Wl,--start-group "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-bz2.o"   -lbz2  -lrt -Wl,--end-group -pthread -fvisibility=hidden -fvisibility-inlines-hidden -static  -static 

...failed gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/bz2...
...failed updating 1 target...
...updated 2 targets...
...found 4 targets...
...updating 2 targets...
gcc.compile.c++ bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/lzma_h.o
bin.v2/standalone/ac/lzma_h.cpp:1:10: fatal error: lzma.h: No such file or directory
 #include <lzma.h>
          ^~~~~~~~
compilation terminated.

    "/home/buildroot/autobuild/run/instance-3/output-1/host/bin/arm-linux-g++"   -fvisibility-inlines-hidden -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -static -static -pthread -O3 -finline-functions -Wno-inline -Wall -fvisibility=hidden  -DNDEBUG   -c -o "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/lzma_h.o" "bin.v2/standalone/ac/lzma_h.cpp"

...failed gcc.compile.c++ bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/lzma_h.o...
...failed updating 1 target...
...updated 1 target...
...found 5 targets...
...updating 3 targets...
gcc.compile.c++ bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-lzma.o
gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/lzma
/home/buildroot/autobuild/run/instance-3/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/7.4.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/ld: cannot find -llzma
collect2: error: ld returned 1 exit status

    "/home/buildroot/autobuild/run/instance-3/output-1/host/bin/arm-linux-g++"    -o "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/lzma" -Wl,--start-group "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-lzma.o"   -llzma  -lrt -Wl,--end-group -pthread -fvisibility=hidden -fvisibility-inlines-hidden -static  -static 

...failed gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/lzma...
...failed updating 1 target...
...updated 2 targets...
...found 5 targets...
...updating 3 targets...
gcc.compile.c++ bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-liblzma.o
gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/liblzma
/home/buildroot/autobuild/run/instance-3/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/7.4.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/ld: cannot find -lliblzma
collect2: error: ld returned 1 exit status

    "/home/buildroot/autobuild/run/instance-3/output-1/host/bin/arm-linux-g++"    -o "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/liblzma" -Wl,--start-group "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-liblzma.o"   -lliblzma  -lrt -Wl,--end-group -pthread -fvisibility=hidden -fvisibility-inlines-hidden -static  -static 

...failed gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/liblzma...
...failed updating 1 target...
...updated 2 targets...
...found 4 targets...
...updating 2 targets...
gcc.compile.c++ bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/zstd_h.o
bin.v2/standalone/ac/zstd_h.cpp:1:10: fatal error: zstd.h: No such file or directory
 #include <zstd.h>
          ^~~~~~~~
compilation terminated.

    "/home/buildroot/autobuild/run/instance-3/output-1/host/bin/arm-linux-g++"   -fvisibility-inlines-hidden -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -static -static -pthread -O3 -finline-functions -Wno-inline -Wall -fvisibility=hidden  -DNDEBUG   -c -o "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/zstd_h.o" "bin.v2/standalone/ac/zstd_h.cpp"

...failed gcc.compile.c++ bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/zstd_h.o...
...failed updating 1 target...
...updated 1 target...
...found 5 targets...
...updating 3 targets...
gcc.compile.c++ bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-zstd.o
gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/zstd
/home/buildroot/autobuild/run/instance-3/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/7.4.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/ld: cannot find -lzstd
collect2: error: ld returned 1 exit status

    "/home/buildroot/autobuild/run/instance-3/output-1/host/bin/arm-linux-g++"    -o "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/zstd" -Wl,--start-group "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-zstd.o"   -lzstd  -lrt -Wl,--end-group -pthread -fvisibility=hidden -fvisibility-inlines-hidden -static  -static 

...failed gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/zstd...
...failed updating 1 target...
...updated 2 targets...
...found 5 targets...
...updating 3 targets...
gcc.compile.c++ bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-zstd_static.o
gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/zstd_static
/home/buildroot/autobuild/run/instance-3/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/7.4.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/ld: cannot find -lzstd_static
collect2: error: ld returned 1 exit status

    "/home/buildroot/autobuild/run/instance-3/output-1/host/bin/arm-linux-g++"    -o "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/zstd_static" -Wl,--start-group "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-zstd_static.o"   -lzstd_static  -lrt -Wl,--end-group -pthread -fvisibility=hidden -fvisibility-inlines-hidden -static  -static 

...failed gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/zstd_static...
...failed updating 1 target...
...updated 2 targets...
...found 5 targets...
...updating 3 targets...
gcc.compile.c++ bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-libzstd.o
gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/libzstd
/home/buildroot/autobuild/run/instance-3/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/7.4.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/ld: cannot find -llibzstd
collect2: error: ld returned 1 exit status

    "/home/buildroot/autobuild/run/instance-3/output-1/host/bin/arm-linux-g++"    -o "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/libzstd" -Wl,--start-group "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-libzstd.o"   -llibzstd  -lrt -Wl,--end-group -pthread -fvisibility=hidden -fvisibility-inlines-hidden -static  -static 

...failed gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/libzstd...
...failed updating 1 target...
...updated 2 targets...
...found 5 targets...
...updating 3 targets...
gcc.compile.c++ bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-libzstd_static.o
gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/libzstd_static
/home/buildroot/autobuild/run/instance-3/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/7.4.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/ld: cannot find -llibzstd_static
collect2: error: ld returned 1 exit status

    "/home/buildroot/autobuild/run/instance-3/output-1/host/bin/arm-linux-g++"    -o "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/libzstd_static" -Wl,--start-group "bin.v2/standalone/ac/gcc-7.4.0/release/link-static/threading-multi/visibility-hidden/main-libzstd_static.o"   -llibzstd_static  -lrt -Wl,--end-group -pthread -fvisibility=hidden -fvisibility-inlines-hidden -static  -static 

...failed gcc.link bin.v2/standalone/ac/gcc-7.4.0/release/link-static/runtime-link-static/threading-multi/visibility-hidden/libzstd_static...
...failed updating 1 target...
...updated 2 targets...
...found 25 targets...
...updating 9 targets...
gcc.compile.c++ bin.v2/libs/regex/build/gcc-7.4.0/debug/threading-multi/visibility-hidden/has_icu_test.o
libs/regex/build/has_icu_test.cpp:12:10: fatal error: unicode/uversion.h: No such file or directory
 #include <unicode/uversion.h>
          ^~~~~~~~~~~~~~~~~~~~
compilation terminated.

    "/home/buildroot/autobuild/run/instance-3/output-1/host/bin/arm-linux-g++"   -fvisibility-inlines-hidden -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -static -static -fPIC -pthread -O0 -fno-inline -Wall -g -fvisibility=hidden  -DBOOST_ALL_NO_LIB=1 -DBOOST_HAS_ICU=1  -I"." -c -o "bin.v2/libs/regex/build/gcc-7.4.0/debug/threading-multi/visibility-hidden/has_icu_test.o" "libs/regex/build/has_icu_test.cpp"

...failed gcc.compile.c++ bin.v2/libs/regex/build/gcc-7.4.0/debug/threading-multi/visibility-hidden/has_icu_test.o...
...skipped <pbin.v2/libs/regex/build/gcc-7.4.0/debug/threading-multi/visibility-hidden>has_icu for lack of <pbin.v2/libs/regex/build/gcc-7.4.0/debug/threading-multi/visibility-hidden>has_icu_test.o...
...skipped <pbin.v2/libs/regex/build/gcc-7.4.0/debug/threading-multi/visibility-hidden>has_icu.passed for lack of <pbin.v2/libs/regex/build/gcc-7.4.0/debug/threading-multi/visibility-hidden>has_icu...
...failed updating 1 target...
...skipped 2 targets...
...updated 6 targets...
...found 1 target...
...updating 1 target...
config-cache.write bin.v2/project-cache.jam
...updated 1 target...