* Makefile.in (c-ppoutput.o): Update.
	* c-common.h (init_pp_output): New.
	(preprocess_file): Update.
	* c-lex.c (init_c_lex): Move mbchar initialization to cpplib.
	Register builtins.
	* c-opts.c (c_common_init): Call init_pp_output if preprocessing.
	Make call to cpp_read_main_file common to whether preprocessing
	or not.  Don't register builtins.
	* c-ppoutput.c: Include c-pragma.h.
	(setup_callbacks): Rename init_pp_output.
	(preprocess_file): No longer setup callbacks or call
	cpp_read_main_file.
	* cpphash.h (_cpp_init_mbchar): New.
	* cppinit.c (init_library): Call _cpp_init_mbchar.
	* cpplex.c (_cpp_init_mbchar): New.

From-SVN: r63913