* ldfile.h (search_dirs_type): Move from ldfile.c, and add cmdline

	* ldfile.h (search_dirs_type): Move from ldfile.c, and add cmdline
	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.