# dirent_h.m4 serial 16

dnl Copyright (C) 2008-2018 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.

dnl Written by Bruno Haible.

AC_DEFUN([gl_DIRENT_H],

[

  dnl Use AC_REQUIRE here, so that the default behavior below is expanded

  dnl once only, before all statements that occur in other macros.

  AC_REQUIRE([gl_DIRENT_H_DEFAULTS])

  dnl <dirent.h> is always overridden, because of GNULIB_POSIXCHECK.

  gl_CHECK_NEXT_HEADERS([dirent.h])

  if test $ac_cv_header_dirent_h = yes; then

    HAVE_DIRENT_H=1

  else

    HAVE_DIRENT_H=0

  fi

  AC_SUBST([HAVE_DIRENT_H])

  dnl Check for declarations of anything we want to poison if the

  dnl corresponding gnulib module is not in use.

  gl_WARN_ON_USE_PREPARE([[#include <dirent.h>

    ]], [alphasort closedir dirfd fdopendir opendir readdir rewinddir scandir])

])

AC_DEFUN([gl_DIRENT_MODULE_INDICATOR],

[

  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.

  AC_REQUIRE([gl_DIRENT_H_DEFAULTS])

  gl_MODULE_INDICATOR_SET_VARIABLE([$1])

  dnl Define it also as a C macro, for the benefit of the unit tests.

  gl_MODULE_INDICATOR_FOR_TESTS([$1])

])

AC_DEFUN([gl_DIRENT_H_DEFAULTS],

[

  AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) dnl for REPLACE_FCHDIR

  GNULIB_OPENDIR=0;     AC_SUBST([GNULIB_OPENDIR])

  GNULIB_READDIR=0;     AC_SUBST([GNULIB_READDIR])

  GNULIB_REWINDDIR=0;   AC_SUBST([GNULIB_REWINDDIR])

  GNULIB_CLOSEDIR=0;    AC_SUBST([GNULIB_CLOSEDIR])

  GNULIB_DIRFD=0;       AC_SUBST([GNULIB_DIRFD])

  GNULIB_FDOPENDIR=0;   AC_SUBST([GNULIB_FDOPENDIR])

  GNULIB_SCANDIR=0;     AC_SUBST([GNULIB_SCANDIR])

  GNULIB_ALPHASORT=0;   AC_SUBST([GNULIB_ALPHASORT])

  dnl Assume proper GNU behavior unless another module says otherwise.

  HAVE_OPENDIR=1;       AC_SUBST([HAVE_OPENDIR])

  HAVE_READDIR=1;       AC_SUBST([HAVE_READDIR])

  HAVE_REWINDDIR=1;     AC_SUBST([HAVE_REWINDDIR])

  HAVE_CLOSEDIR=1;      AC_SUBST([HAVE_CLOSEDIR])

  HAVE_DECL_DIRFD=1;    AC_SUBST([HAVE_DECL_DIRFD])

  HAVE_DECL_FDOPENDIR=1;AC_SUBST([HAVE_DECL_FDOPENDIR])

  HAVE_FDOPENDIR=1;     AC_SUBST([HAVE_FDOPENDIR])

  HAVE_SCANDIR=1;       AC_SUBST([HAVE_SCANDIR])

  HAVE_ALPHASORT=1;     AC_SUBST([HAVE_ALPHASORT])

  REPLACE_OPENDIR=0;    AC_SUBST([REPLACE_OPENDIR])

  REPLACE_CLOSEDIR=0;   AC_SUBST([REPLACE_CLOSEDIR])

  REPLACE_DIRFD=0;      AC_SUBST([REPLACE_DIRFD])

  REPLACE_FDOPENDIR=0;  AC_SUBST([REPLACE_FDOPENDIR])

])