Libraries updates and cleanup

* Updating common/lib
 * Updating lib/csu
 * Updating lib/libc
 * Updating libexec/ld.elf_so
 * Corrected test on __minix in featuretest to actually follow the
   meaning of the comment.
 * Cleaned up _REENTRANT-related defintions.
 * Disabled -D_REENTRANT for libfetch
 * Removing some unneeded __NBSD_LIBC defines and tests

Change-Id: Ic1394baef74d11b9f86b312f5ff4bbc3cbf72ce2

lib/libc/string/wcscmp.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: wcscmp.c,v 1.8 2009/01/11 02:46:30 christos Exp $	*/
+/*	$NetBSD: wcscmp.c,v 1.9 2012/06/25 22:32:46 abs Exp $	*/
 
 /*-
  * Copyright (c) 1990, 1993
@@ -37,7 +37,7 @@
 #if 0
 static char sccsid[] = "@(#)strcmp.c	8.1 (Berkeley) 6/4/93";
 #else
-__RCSID("$NetBSD: wcscmp.c,v 1.8 2009/01/11 02:46:30 christos Exp $");
+__RCSID("$NetBSD: wcscmp.c,v 1.9 2012/06/25 22:32:46 abs Exp $");
 #endif
 #endif /* LIBC_SCCS and not lint */
 
@@ -49,8 +49,7 @@ __RCSID("$NetBSD: wcscmp.c,v 1.8 2009/01/11 02:46:30 christos Exp $");
  * Compare strings.
  */
 int
-wcscmp(s1, s2)
-	const wchar_t *s1, *s2;
+wcscmp(const wchar_t *s1, const wchar_t *s2)
 {
 
 	_DIAGASSERT(s1 != NULL);