config/target-posix

case "${target}" in
  *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
      ;;
  *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
      ;;
  *-*-solaris2* | *-*-hpux11*)
      ;;
  *-*-darwin* | *-*-aix*)
      ;;
  *)
      UNSUPPORTED=1 ;;
  esac