gcc.c: Include multilib.h.
* gcc.c: Include multilib.h.
(print_multi_lib, print_multi_directory, multilib_select,
multilib_dir): New static variables.
(option_map): Added --print-multi-lib and --print-multi-directory.
(set_spec): Get multilib_select from specs file.
(process_command): Dump multilib_select into specs file. Handle
-print-multi-lib and -print-multi-directory.
(do_spec_1): Try multilib_dir for %D case.
(find_file): Try multilib_dir.
(main): Call set_multilib_dir. Handle print_multi_lib and
print_multi_directory.
(used_arg, set_multilib_dir, print_multilib_info): New functions.
From-SVN: r7491