gnulib: upgrade and install the mkstemp module.

gnulib 9e117ae955a5c6a0406140e62b76c3ef50e3bc2b.

* lib/fcntl.in.h, lib/gettimeofday.c, lib/lstat.c, lib/mkstemp.c,
lib/pathmax.h, lib/stat.c, lib/sys_stat.in.h, lib/sys_time.in.h,
lib/tempname.c, lib/tempname.h, lib/time.in.h, lib/xsize.c,
m4/extern-inline.m4, m4/fcntl-o.m4, m4/fcntl_h.m4, m4/gettimeofday.m4,
m4/largefile.m4, m4/lstat.m4, m4/mkstemp.m4, m4/pathmax.m4,
m4/stat.m4, m4/sys_stat_h.m4, m4/sys_time_h.m4, m4/tempname.m4,
m4/time_h.m4: New files.
* lib/xsize.h, m4/gnulib-cache.m4, m4/gnulib-comp.m4,
m4/xsize.m4, lib/Makefile.am: Upgrade.

lib/mkstemp.c

@@ -0,0 +1,50 @@
+/* Copyright (C) 1998-1999, 2001, 2005-2007, 2009-2012 Free Software
+   Foundation, Inc.
+   This file is derived from the one in the GNU C Library.
+
+   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
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#if !_LIBC
+# include <config.h>
+#endif
+
+#include <stdlib.h>
+
+#if !_LIBC
+# include "tempname.h"
+# define __gen_tempname gen_tempname
+# ifndef __GT_FILE
+#  define __GT_FILE GT_FILE
+# endif
+#endif
+
+#include <stdio.h>
+
+#ifndef __GT_FILE
+# define __GT_FILE 0
+#endif
+
+/* Generate a unique temporary file name from XTEMPLATE.
+   The last six characters of XTEMPLATE must be "XXXXXX";
+   they are replaced with a string that makes the file name unique.
+   Then open the file and return a fd.
+
+   If you are creating temporary files which will later be removed,
+   consider using the clean-temp module, which avoids several pitfalls
+   of using mkstemp directly. */
+int
+mkstemp (char *xtemplate)
+{
+  return __gen_tempname (xtemplate, 0, 0, __GT_FILE);
+}