* c-common.c (STD_C9L, ADJ_STD): Define.
	(printf_length_specs, scanf_length_specs): Mark "ll" as standard
	STD_C9L.
	(T99_LL): Rename to T9L_LL.
	(T99_ULL): Rename to T9L_ULL.
	(print_char_table, scan_char_table): Use T9L_LL and T9L_ULL
	instead of T99_LL and T99_ULL.
	(check_format_info_main): Use ADJ_STD on all format standard
	versions being compared.
	* c-common.h: Declare warn_long_long.
	* c-tree.h: Don't declare warn_long_long.

cp:
	* cp-tree.h: Don't declare warn_long_long.

testsuite:
	* gcc.dg/format-warnll-1.c: New test.

From-SVN: r38369