* sysdeps/mach/hurd/Makefile (sysdep_headers) [subdir=socket]:

Add net/ethernet.h net/if_arp.h net/if_ether.h net/if_ppp.h
	net/route.h.

	* hurd/report-wait.c (describe_number): Use __stpcpy to prepend
	flavor to description only when flavor is not NULL.

	* hurd/hurdsig.c (signal_allowed): Unlock _hurd_dtable_lock
	mutex after SIGIO/SIGURG lookup loop.

hurd/hurdsig.c

@@ -1134,6 +1134,7 @@ signal_allowed (int signo, mach_port_t refport)
 	      }
 	    _hurd_port_free (&_hurd_dtable[d]->port, &ulink, port);
 	  }
+	__mutex_unlock (&_hurd_dtable_lock);
 	/* If we found a lucky winner, we've set D to -1 in the loop.  */
 	if (lucky)
 	  goto win;