libffi:
  type: library
  artifact:
    source:
      type: ghrel
      repo: libffi/libffi
      match: libffi.+\.tar\.gz
      prefer-stable: true
    metadata:
      license-files: [LICENSE]
      license: MIT
  headers@unix:
    - ffi.h
    - ffitarget.h
  static-libs@unix:
    - libffi.a