* Makefile.in: Update.
	* c-common.c (flag_iso, flag_undef, cb_register_builtins,
	builtin_define_std): New.
	(c_common_init): Register CPP builtins callback.
	* c-common.h (flag_iso, flag_undef): New.
	* c-decl.c (c_decode_option): Set flag_iso and flag_undef.
	* c-lex.c: Don't include target.h.
	(cb_register_builtins): Move to c-common.c.
	(init_c_lex): Don't register hook here.
	* c-lex.h (builtin_define, builtin_assert, builtin_define_std): New.
	(cpp_define, cpp_assert): Remove.
	* gcc.c (cc1_options): Pass -undef to front end.
	* target-def.h (TARGET_REGISTER_CPP_BUILTINS): Remove.
	(TARGET_INITIALIZER): Update.
	* target.h (struct cpp_reader): Don't predeclare.
	(struct gcc_target): Remove cpp builtin hook.
	* tree.c (default_register_cpp_builtins): Remove.
cp:
	* cp-tree.h (flag_ansi): Remove.
	* decl2.c (flag_ansi): Remove.
	(cxx_decode_option): Set flag_iso and flag_undef.
doc:
	* tm.texi: Update.

From-SVN: r53349