* c-common.h (flag_isoc94): Declare.

	* c-decl.c (flag_isoc94): Define.
	(c_decode_option): Set flag_isoc94 as appropriate.
	* c-common.c (T_PD, T_IM, T_UIM): Define.
	(format_char_info): Add tlen and jlen.
	(print_char_table): Add entries for %t and %j.  Allow %zn.  Allow
	%F.  Allow %lf.
	(scan_char_table): Add entries for %t and %j.  Allow %F.  Allow
	%l[.
	(time_char_table): Add NULL entries for %t and %j.
	(check_format_info): Allow for %t and %j.  Warn for %F if pedantic
	and not C99.  Warn for %lc, %ls and %l[ if pedantic and not C94.
	Warn for printf %lf if pedantic and not C99.  Don't warn for empty
	precision.  Allow precision argument to be unsigned int.  If
	pedantic, warn for %p passed an argument not a pointer to possibly
	qualified void or a possibly qualified character type, and for
	pointer targets of the wrong sign, except for character pointers.

cp:
	* decl.c (flag_isoc94): New variable.

testsuite:
	* gcc.dg/c90-printf-1.c, gcc.dg/c94-printf-1.c: New tests.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@35482 138bc75d-0d04-0410-961f-82ee72b054a4

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