2019-07-22  Martin Liska  <mliska@suse.cz>

	PR driver/91172
	* opts-common.c (decode_cmdline_option): Decode
	argument of -Werror and check it for a wrong language.
	* opts-global.c (complain_wrong_lang): Remove such case.
2019-07-22  Martin Liska  <mliska@suse.cz>

	PR driver/91172
	* gcc.dg/pr91172.c: New test.

From-SVN: r273660