alexey@debian9vm:~/fuchsia$ ./packages/gn/gen.py
Done. Wrote 482 targets from 93 files in 3088ms
alexey@debian9vm:~/fuchsia$ ./buildtools/ninja -C out/debug-x86-64
ninja: Entering directory `out/debug-x86-64'
[485/3903] CXX gcc_x64/obj/dart/runtime/vm/libdart_vm_nosnapshot_with_precompiler.object.o
FAILED: gcc_x64/obj/dart/runtime/vm/libdart_vm_nosnapshot_with_precompiler.object.o
g++ -MMD -MF gcc_x64/obj/dart/runtime/vm/libdart_vm_nosnapshot_with_precompiler.object.o.d -DDART_NO_SNAPSHOT -DNDEBUG -DDART_PRECOMPILER -I../../dart/runtime -I../.. -Igcc_x64/gen -g -Wall -Wextra -Wno-unused-parameter -g -O0 -Werror -Wall -Wextra -Wno-unused-parameter -Wnon-virtual-dtor -Wvla -Wno-conversion-null -Woverloaded-virtual -g3 -ggdb3 -fno-rtti -fno-exceptions -O3 -std=c++11 -c ../../dart/runtime/vm/object.cc -o gcc_x64/obj/dart/runtime/vm/libdart_vm_nosnapshot_with_precompiler.object.o
../../dart/runtime/vm/object.cc: In function ‘intptr_t dart::DecodeSLEB128(const uint8_t*, intptr_t, intptr_t*)’:
../../dart/runtime/vm/object.cc:11499:43: error: left shift of negative value [-Werror=shift-negative-value]
     value |= static_cast<intptr_t>(-1) << shift;
                                           ^~~~~
cc1plus: all warnings being treated as errors
[487/3903] CXX gcc_x64/obj/dart/runtime/vm/libdart_vm_nosnapshot_with_precompiler.regexp.o
ninja: build stopped: subcommand failed.
alexey@debian9vm:~/fuchsia$
alexey@debian9vm:~/fuchsia$ cat /etc/issue
Debian GNU/Linux stretch/sid \n \l


FUCHSIA-2016-08-14 running o Debian Linux 9 x64 on VirtualBox on Intel Haswell.