./libpython3.6m.so: undefined reference to `pthread_cond_signal'
./libpython3.6m.so: undefined reference to `pthread_getspecific'
./libpython3.6m.so: undefined reference to `pthread_key_delete'
./libpython3.6m.so: undefined reference to `pthread_detach'
./libpython3.6m.so: undefined reference to `pthread_key_create'
./libpython3.6m.so: undefined reference to `pthread_cond_init'
./libpython3.6m.so: undefined reference to `pthread_mutex_unlock'
./libpython3.6m.so: undefined reference to `pthread_self'
./libpython3.6m.so: undefined reference to `pthread_mutex_destroy'
./libpython3.6m.so: undefined reference to `pthread_mutex_lock'
./libpython3.6m.so: undefined reference to `pthread_cond_wait'
./libpython3.6m.so: undefined reference to `pthread_cond_destroy'
./libpython3.6m.so: undefined reference to `pthread_mutex_init'
./libpython3.6m.so: undefined reference to `pthread_cond_timedwait'
./libpython3.6m.so: undefined reference to `pthread_setspecific'