FAILED: gn
g++ -pthread -o gn -Wl,--start-group tools/gn/gn_main.o libevent.a base.a xdg_user_dirs.a gn_lib.a dynamic_annotations.a -Wl,--end-group -lrt -latomic
base/threading/thread_task_runner_handle.o: In function `base::ThreadTaskRunnerHandle::OverrideForTesting(scoped_refptr<base::SingleThreadTaskRunner>)':
thread_task_runner_handle.cc:(.text+0x896): undefined reference to `base::ScopedClosureRunner::ScopedClosureRunner(base::Callback<void (), (base::internal::CopyMode)1, (base::internal::RepeatMode)1> const&)'
thread_task_runner_handle.cc:(.text+0x954): undefined reference to `base::ScopedClosureRunner::ScopedClosureRunner(base::Callback<void (), (base::internal::CopyMode)1, (base::internal::RepeatMode)1> const&)'
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.