i[34567]86-*-openbsd[0-2].* | i[34567]86-*-openbsd3.[0-3])
gdb_host=obsdaout ;;
i[34567]86-*-openbsd*) gdb_host=obsd ;;
-i[34567]86-*-solaris2.1[0-9]*) gdb_host=sol2-64 ;;
+i[34567]86-*-solaris2.1[0-9]* | x86_64-*-solaris2.1[0-9]*)
+ gdb_host=sol2-64 ;;
i[34567]86-*-solaris*) gdb_host=i386sol2 ;;
i[34567]86-*-cygwin*) gdb_host=cygwin ;;