gcc/
2010-06-23  Shujing Zhao  <pearly.zhao@oracle.com>

	PR c/44517
	* c-parser.c (c_parser_parms_list_declarator): Return NULL if one of
	parameters are not good.
	(c_parser_parameter_declaration): Error unknown type name if the
	parameter can't start declaration specifiers.

gcc/testsuite/
2010-06-23  Shujing Zhao  <pearly.zhao@oracle.com>

	PR c/44517
	* gcc.dg/noncompile/pr44517.c: New.
	* gcc.dg/noncompile/990416-1.c: Adjust expected error.