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/stdio/fdopen.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: fdopen.c,v 1.15 2008/03/13 15:40:00 christos Exp $	*/
+/*	$NetBSD: fdopen.c,v 1.16 2012/03/15 18:22:30 christos Exp $	*/
 
 /*-
  * Copyright (c) 1990, 1993
@@ -37,7 +37,7 @@
 #if 0
 static char sccsid[] = "@(#)fdopen.c	8.1 (Berkeley) 6/4/93";
 #else
-__RCSID("$NetBSD: fdopen.c,v 1.15 2008/03/13 15:40:00 christos Exp $");
+__RCSID("$NetBSD: fdopen.c,v 1.16 2012/03/15 18:22:30 christos Exp $");
 #endif
 #endif /* LIBC_SCCS and not lint */
 
@@ -59,9 +59,7 @@ __weak_alias(fdopen,_fdopen)
 #endif
 
 FILE *
-fdopen(fd, mode)
-	int fd;
-	const char *mode;
+fdopen(int fd, const char *mode)
 {
 	FILE *fp;
 	int flags, oflags, fdflags, tmp;
@@ -81,30 +79,30 @@ fdopen(fd, mode)
 	}
 
 	if ((flags = __sflags(mode, &oflags)) == 0)
-		return (NULL);
+		return NULL;
 
 	/* Make sure the mode the user wants is a subset of the actual mode. */
 	if ((fdflags = fcntl(fd, F_GETFL, 0)) < 0)
-		return (NULL);
+		return NULL;
 	tmp = fdflags & O_ACCMODE;
 	if (tmp != O_RDWR && (tmp != (oflags & O_ACCMODE))) {
 		errno = EINVAL;
-		return (NULL);
+		return NULL;
 	}
 
 	if (oflags & O_NONBLOCK) {
 		struct stat st;
 		if (fstat(fd, &st) == -1) {
-			return (NULL);
+			return NULL;
 		}
 		if (!S_ISREG(st.st_mode)) {
 			errno = EFTYPE;
-			return (NULL);
+			return NULL;
 		}
 	}
 
 	if ((fp = __sfp()) == NULL)
-		return (NULL);
+		return NULL;
 	fp->_flags = flags;
 	/*
 	 * If opened for appending, but underlying descriptor does not have
@@ -119,5 +117,5 @@ fdopen(fd, mode)
 	fp->_write = __swrite;
 	fp->_seek = __sseek;
 	fp->_close = __sclose;
-	return (fp);
+	return fp;
 }