re PR c/53063 (encode group options in the .opt files)

re PR c/53063 (encode group options in the .opt files)

gcc/
2012-11-07  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	PR c/53063
	* doc/invoke.texi (Wformat): Update.
c-family/
2012-11-07  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	PR c/53063
	* c.opt (Wformat): Make it Alias Wformat=1.
	(Wformat-contains-nul,Wformat-extra-args,Wformat-nonliteral,
	Wformat-security,Wformat-y2k,Wformat-zero-length): Use
	LangEnabledBy.
	(Wformat=): RejectNegative. Use LangEnabledBy.
	(Wnonnull): Use LangEnabledBy.
	* c-opts.c (c_common_handle_option): Do not handle Wformat here.
	* c-format.c (set_Wformat): Delete.
	(decode_format_attr): Replace OPT_Wformat with OPT_Wformat_.
        (maybe_read_dollar_number):  Likewise.
        (avoid_dollar_number):  Likewise.
        (finish_dollar_format_checking):  Likewise.
        (check_format_info):  Likewise.
        (check_format_info_main):  Likewise.
        (check_format_types):  Likewise.
        (format_type_warning):  Likewise.
        * c-common.c (int):  Likewise.
        (check_function_sentinel):  Likewise.
        * c-common.h (warn_format,set_Wformat): Do not declare here.
testsuite/
2012-11-07  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	PR c/53063
	* gcc.dg/warn-nsstring.c: Use -Wformat explicitly.

From-SVN: r193304