2012-05-03  Manuel López-Ibáñez  <manu@gcc.gnu.org>

gcc/
	* flags.h (flag_permissive): Do not declare.
	* diagnostic.c (diagnostic_report_diagnostic): Handle fpermissive
	option specially.
	* toplev.c (flag_permissive): Do not define.
	* c-tree.h (system_header_p): Delete unused.
c-family/
	* c.opt (fpermissive): Add Var(flag_permissive).

From-SVN: r187123