extern int pascal_parse (struct parser_state *); /* Defined in p-exp.y */
-extern void pascal_yyerror (char *); /* Defined in p-exp.y */
+extern void pascal_yyerror (const char *); /* Defined in p-exp.y */
/* Defined in p-typeprint.c */
extern void pascal_print_type (struct type *, const char *, struct ui_file *,