source: trunk/essentials/sys-apps/findutils/gnulib/m4/d-ino.m4

#serial 8

dnl From Jim Meyering.
dnl
dnl Check whether struct dirent has a member named d_ino.
dnl

# Copyright (C) 1997, 1999, 2000, 2001, 2003, 2004, 2006 Free Software
# Foundation, Inc.

# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

AC_DEFUN([gl_CHECK_TYPE_STRUCT_DIRENT_D_INO],
  [AC_CACHE_CHECK([for d_ino member in directory struct],
                  jm_cv_struct_dirent_d_ino,
     [AC_TRY_LINK(dnl
       [
#include <sys/types.h>
#include <dirent.h>
       ],
       [struct dirent dp; dp.d_ino = 0;],

       jm_cv_struct_dirent_d_ino=yes,
       jm_cv_struct_dirent_d_ino=no)
     ]
   )
   if test $jm_cv_struct_dirent_d_ino = yes; then
     AC_DEFINE(D_INO_IN_DIRENT, 1,
       [Define if there is a member named d_ino in the struct describing
        directory headers.])
   fi
  ]
)