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/stdlib/a64l.c

@@ -5,7 +5,7 @@
 
 #include <sys/cdefs.h>
 #if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: a64l.c,v 1.9 2003/07/26 19:24:53 salo Exp $");
+__RCSID("$NetBSD: a64l.c,v 1.10 2012/06/08 11:15:26 abs Exp $");
 #endif
 
 #include "namespace.h"
@@ -18,8 +18,7 @@ __weak_alias(a64l,_a64l)
 #endif
 
 long
-a64l(s)
-	const char *s;
+a64l(const char *s)
 {
 	long value, digit, shift;
 	int i;