Synchronize on NetBSD-CVS (2013/12/1 12:00:00 UTC)

- Fix for possible unset uid/gid in toproto
 - Fix for default mtree style
 - Update libelf
 - Importing libexecinfo
 - Resynchronize GCC, mpc, gmp, mpfr
 - build.sh: Replace params with show-params.
     This has been done as the make target has been renamed in the same
     way, while a new target named params has been added. This new
     target generates a file containing all the parameters, instead of
     printing it on the console.
 - Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
     get getservbyport() out of the inner loop

Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091

sys/uvm/uvm_aobj.h

@@ -1,4 +1,4 @@
-/*	$NetBSD: uvm_aobj.h,v 1.22 2012/09/14 18:56:15 rmind Exp $	*/
+/*	$NetBSD: uvm_aobj.h,v 1.23 2013/10/18 17:48:44 christos Exp $	*/
 
 /*
  * Copyright (c) 1998 Chuck Silvers, Charles D. Cranor and
@@ -61,7 +61,7 @@ void	uao_dropswap(struct uvm_object *, int);
 bool	uao_swap_off(int, int);
 void	uao_dropswap_range(struct uvm_object *, voff_t, voff_t);
 #else
-#define	uao_find_swslot(obj, off)	0
+#define	uao_find_swslot(obj, off)	(__USE(off), 0)
 #define	uao_dropswap(obj, off)		/* nothing */
 #define	uao_dropswap_range(obj, lo, hi)	/* nothing */
 #endif