1# opendir.m4 serial 2
2dnl Copyright (C) 2011-2015 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved.
6
7AC_DEFUN([gl_FUNC_OPENDIR],
8[
9  AC_REQUIRE([gl_DIRENT_H_DEFAULTS])
10
11  AC_CHECK_FUNCS([opendir])
12  if test $ac_cv_func_opendir = no; then
13    HAVE_OPENDIR=0
14  fi
15  dnl Replace opendir() for supporting the gnulib-defined fchdir() function,
16  dnl to keep fchdir's bookkeeping up-to-date.
17  m4_ifdef([gl_FUNC_FCHDIR], [
18    gl_TEST_FCHDIR
19    if test $HAVE_FCHDIR = 0; then
20      if test $HAVE_OPENDIR = 1; then
21        REPLACE_OPENDIR=1
22      fi
23    fi
24  ])
25])
26