gnulib/import/m4/d-type.m4

   1 # serial 12
   2
   3 dnl From Jim Meyering.
   4 dnl
   5 dnl Check whether struct dirent has a member named d_type.
   6 dnl
   7
   8 # Copyright (C) 1997, 1999-2004, 2006, 2009-2019 Free Software Foundation, Inc.
   9 #
  10 # This file is free software; the Free Software Foundation
  11 # gives unlimited permission to copy and/or distribute it,
  12 # with or without modifications, as long as this notice is preserved.
  13
  14 AC_DEFUN([gl_CHECK_TYPE_STRUCT_DIRENT_D_TYPE],
  15   [AC_CACHE_CHECK([for d_type member in directory struct],
  16                   [gl_cv_struct_dirent_d_type],
  17      [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
  18 #include <sys/types.h>
  19 #include <dirent.h>
  20          ]],
  21          [[struct dirent dp; dp.d_type = 0;]])],
  22        [gl_cv_struct_dirent_d_type=yes],
  23        [gl_cv_struct_dirent_d_type=no])
  24      ]
  25    )
  26    if test $gl_cv_struct_dirent_d_type = yes; then
  27      AC_DEFINE([HAVE_STRUCT_DIRENT_D_TYPE], [1],
  28        [Define if there is a member named d_type in the struct describing
  29         directory headers.])
  30    fi
  31   ]
  32 )