field.
(search_head): Declare.
(ldfile_add_library_path): Add new cmdline argument in prototype.
* ldfile.c (search_head): Make non-static.
(search_dirs_type): Move to ldfile.h.
(ldfile_add_library_path): Accept cmdline argument, and save it.
* lexsup.c (parse_args): Pass true for new cmdline argument of
ldfile_add_library_path.
(set_default_dirlist): Likewise.
* ldmain.c (check_for_scripts_dir): Pass false for new cmdline
argument of ldfile_add_library_path.
* ldgram.y (ifile_p1): Likewise.
