Improve name: "count-one-bits" is better than "popcount".

[gnulib.git] / lib / dup2.c

diff --git a/lib/dup2.c b/lib/dup2.c
index 730434f..8894481 100644 (file)
--- a/lib/dup2.c
+++ b/lib/dup2.c
@@ -1,5 +1,6 @@
 /* Duplicate an open file descriptor to a specified file descriptor.
-   Copyright 1999, 2000 Free Software Foundation, Inc.
+
+   Copyright (C) 1999, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -13,26 +14,17 @@
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software Foundation,
-   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 /* written by Paul Eggert */
 
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <errno.h>
-#ifndef errno
-extern int errno;
-#endif
+#include <config.h>
 
-#if HAVE_FCNTL_H
-# include <fcntl.h>
-#endif
+/* Specification.  */
+#include <unistd.h>
 
-#if HAVE_UNISTD_H
-# include <unistd.h>
-#endif
+#include <errno.h>
+#include <fcntl.h>
 
 #ifndef F_DUPFD
 static int