1case "${target}" in
2  *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
3      ;;
4  *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
5      ;;
6  *-*-solaris2* | *-*-hpux11*)
7      ;;
8  *-*-darwin* | *-*-aix*)
9      ;;
10  *)
11      UNSUPPORTED=1 ;;
12  esac
13