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

include/cdbw.h

@@ -1,4 +1,4 @@
-/*	$NetBSD: cdbw.h,v 1.1 2010/04/25 00:54:45 joerg Exp $	*/
+/*	$NetBSD: cdbw.h,v 1.2 2012/06/03 21:21:45 joerg Exp $	*/
 /*-
  * Copyright (c) 2010 The NetBSD Foundation, Inc.
  * All rights reserved.
@@ -49,6 +49,7 @@ int		 cdbw_put_data(struct cdbw *, const void *, size_t,
     uint32_t *);
 int		 cdbw_put_key(struct cdbw *, const void *, size_t,
     uint32_t);
+uint32_t	 cdbw_stable_seeder(void);
 int		 cdbw_output(struct cdbw *, int, const char[16],
     uint32_t (*)(void));
 void		 cdbw_close(struct cdbw *);