The FFI Helper uses `gcc --print-search-dirs' to locate gcc directories. It also adds /usr/include. I don't understand why it is not finding them. It also uses `gcc -dM -E' to determine #defines. Even with that, on my macOS system, I need to make fixes. Can you determine if some gcc command, via `gcc --print-search-dirs' will find the correct includes? Maybe I should add a `--with-gcc' command line argument.
Thanks, Matt
