--- hurd/libshouldbeinlibc/argp-parse.c~	Fri Jul 24 15:55:34 1998
+++ hurd/libshouldbeinlibc/argp-parse.c	Fri Jul 24 21:11:55 1998
@@ -578,6 +578,9 @@
 	   as OPTERR is 0, then it shouldn't actually try to access it.  */
 	parser->state.argv--, parser->state.argc++;
     }
+  else if (parser->state.flags & ARGP_PARSE_ARGV0)
+    /* FIXME: We haven't implemented this option without ARGP_NO_ERRS */
+    return ENOSYS;
   else
     opterr = 1;		/* Print error messages.  */