# closedir.m4 serial 6

dnl Copyright (C) 2011-2018 Free Software Foundation, Inc.

dnl This file is free software; the Free Software Foundation

dnl gives unlimited permission to copy and/or distribute it,

dnl with or without modifications, as long as this notice is preserved.

AC_DEFUN([gl_FUNC_CLOSEDIR],

[

  AC_REQUIRE([gl_DIRENT_H_DEFAULTS])

  AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles

  AC_CHECK_FUNCS([closedir])

  if test $ac_cv_func_closedir = no; then

    HAVE_CLOSEDIR=0

  fi

  dnl Replace closedir() for supporting the gnulib-defined fchdir() function,

  dnl to keep fchdir's bookkeeping up-to-date.

  m4_ifdef([gl_FUNC_FCHDIR], [

    gl_TEST_FCHDIR

    if test $HAVE_FCHDIR = 0; then

      if test $HAVE_CLOSEDIR = 1; then

        REPLACE_CLOSEDIR=1

      fi

    fi

  ])

  dnl Replace closedir() for supporting the gnulib-defined dirfd() function.

  case $host_os,$HAVE_CLOSEDIR in

    os2*,1)

      REPLACE_CLOSEDIR=1;;

  esac

])