[Bug-gnulib] xreadlink patch to assume C89 or better

[Bruno Haible]

May I commit this patch, Jim?

        * lib/xreadlink.c: Include <stdlib.h> unconditionally.
        * m4/xreadlink.m4 (gl_XREADLINK): Remove <stdlib.h> check.

*** lib/xreadlink.c     1 Jul 2003 21:07:13 -0000       1.10
--- lib/xreadlink.c     10 Sep 2003 13:47:02 -0000
***************
*** 31,39 ****
  
  #include <limits.h>
  #include <sys/types.h>
! #if HAVE_STDLIB_H
! # include <stdlib.h>
! #endif
  #if HAVE_UNISTD_H
  # include <unistd.h>
  #endif
--- 31,37 ----
  
  #include <limits.h>
  #include <sys/types.h>
! #include <stdlib.h>
  #if HAVE_UNISTD_H
  # include <unistd.h>
  #endif
*** m4/xreadlink.m4     1 Jul 2003 21:07:13 -0000       1.4
--- m4/xreadlink.m4     10 Sep 2003 13:47:02 -0000
***************
*** 1,4 ****
! # xreadlink.m4 serial 3
  dnl Copyright (C) 2002, 2003 Free Software Foundation, Inc.
  dnl This file is free software, distributed under the terms of the GNU
  dnl General Public License.  As a special exception to the GNU General
--- 1,4 ----
! # xreadlink.m4 serial 4
  dnl Copyright (C) 2002, 2003 Free Software Foundation, Inc.
  dnl This file is free software, distributed under the terms of the GNU
  dnl General Public License.  As a special exception to the GNU General
***************
*** 10,14 ****
  [
    dnl Prerequisites of lib/xreadlink.c.
    AC_REQUIRE([gt_TYPE_SSIZE_T])
!   AC_CHECK_HEADERS_ONCE(stdlib.h unistd.h)
  ])
--- 10,14 ----
  [
    dnl Prerequisites of lib/xreadlink.c.
    AC_REQUIRE([gt_TYPE_SSIZE_T])
!   AC_CHECK_HEADERS_ONCE(unistd.h)
  ])