message: core: add __NetBSD__ build fix in parallel.cpp
diff: #endif
  #if defined __unix__ || defined __APPLE__ || defined __GLIBC__ \
  - || defined __HAIKU__ || defined __EMSCRIPTEN__ || defined __FreeBSD__ \
  - || defined __OpenBSD__
  + || defined __HAIKU__ || defined __EMSCRIPTEN__ \
  + || defined __FreeBSD__ || defined __NetBSD__ || defined __OpenBSD__
  #include <unistd.h>
  #include <stdio.h>
  #include <sys/types.h>
  