* c-opts.c (c_common_post_options): Don't call cpp_find_main_file yet.
(c_common_parse_file): No longer need to call cpp_read_main_file
when file_index > 0 (as in multi-file or server compiation).
(finish_options): Change to <built-in> is an LC_ENTER, not LC_RENAME
as this now happens before cpp_push_main_file.
(push_command_line_include): When done with options, pass LC_LEAVE
instead of LC_RENAME to cpp_change_file and finally cpp_push_main_file.
(fe_file_change): Handle NULL new_map, and simplify.
From-SVN: r72015
