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

lib/libmthread/Makefile

@@ -16,4 +16,6 @@ SRCS=	\
 
 WARNS?=	4
 
+CFLAGS+= -fno-builtin
+
 .include <bsd.lib.mk>

lib/libmthread/allocate.c

@@ -2,8 +2,14 @@
 #include <errno.h>
 #include <minix/mthread.h>
 #include <string.h>
+
 #include <machine/param.h>
+#include <machine/vmparam.h>
+
 #include <sys/mman.h>
+
+#include <uvm/uvm_param.h>
+
 #include "global.h"
 #include "proto.h"
 
@@ -15,9 +21,6 @@ static void mthread_thread_stop(mthread_thread_t thread);
 static void mthread_trampoline(void);
 
 static int initialized = 0;
-#ifndef PGSHIFT
-# define PGSHIFT	12	/* XXX: temporarily for ACK */
-#endif
 #define MTHREAD_GUARDSIZE 	(1 << PGSHIFT) 	/* 1 page */
 
 static struct __mthread_attr default_attr = {	MTHREAD_STACK_MIN,