Libc update to simplify merge.

Bumping libc files for unsupported architectures, to simplify merging.
A bunch of small fixes:
 * in libutil update
 * the macro in endian.h
 * some undefined types due to clear separation from host.
 * Fix a warning for cdbr.c

Some modification which were required for the new build system:
 * inclusion path for const.h in sconst, still hacky
 * Removed default malloc.c which conflicts on some occasions.

lib/libc/arch/vax/sys/execle.S

@@ -1,4 +1,4 @@
-/*	$NetBSD: execle.S,v 1.4 2003/08/24 21:04:53 ragge Exp $	*/
+/*	$NetBSD: execle.S,v 1.5 2011/01/25 02:38:15 matt Exp $	*/
 /*
  * Copyright (c) 2001 Ludd, University of Lule}, Sweden. All rights reserved.
  *
@@ -31,6 +31,10 @@
 
 #include "SYS.h"
 
+#ifdef SYSLIBC_SCCS
+RCSID("$NetBSD: execle.S,v 1.5 2011/01/25 02:38:15 matt Exp $")
+#endif
+
 #ifdef WEAK_ALIAS
 WEAK_ALIAS(execle, _execle)
 #endif
@@ -42,3 +46,4 @@ ENTRY(_execle, 0)
 	pushl	4(%ap)		# Push path
 	calls	$3,_C_LABEL(execve)
 	ret
+END(_execle)