1# dirent_h.m4 serial 16
2dnl Copyright (C) 2008-2015 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
7dnl Written by Bruno Haible.
8
9AC_DEFUN([gl_DIRENT_H],
10[
11  dnl Use AC_REQUIRE here, so that the default behavior below is expanded
12  dnl once only, before all statements that occur in other macros.
13  AC_REQUIRE([gl_DIRENT_H_DEFAULTS])
14
15  dnl <dirent.h> is always overridden, because of GNULIB_POSIXCHECK.
16  gl_CHECK_NEXT_HEADERS([dirent.h])
17  if test $ac_cv_header_dirent_h = yes; then
18    HAVE_DIRENT_H=1
19  else
20    HAVE_DIRENT_H=0
21  fi
22  AC_SUBST([HAVE_DIRENT_H])
23
24  dnl Check for declarations of anything we want to poison if the
25  dnl corresponding gnulib module is not in use.
26  gl_WARN_ON_USE_PREPARE([[#include <dirent.h>
27    ]], [alphasort closedir dirfd fdopendir opendir readdir rewinddir scandir])
28])
29
30AC_DEFUN([gl_DIRENT_MODULE_INDICATOR],
31[
32  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
33  AC_REQUIRE([gl_DIRENT_H_DEFAULTS])
34  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
35  dnl Define it also as a C macro, for the benefit of the unit tests.
36  gl_MODULE_INDICATOR_FOR_TESTS([$1])
37])
38
39AC_DEFUN([gl_DIRENT_H_DEFAULTS],
40[
41  AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) dnl for REPLACE_FCHDIR
42  GNULIB_OPENDIR=0;     AC_SUBST([GNULIB_OPENDIR])
43  GNULIB_READDIR=0;     AC_SUBST([GNULIB_READDIR])
44  GNULIB_REWINDDIR=0;   AC_SUBST([GNULIB_REWINDDIR])
45  GNULIB_CLOSEDIR=0;    AC_SUBST([GNULIB_CLOSEDIR])
46  GNULIB_DIRFD=0;       AC_SUBST([GNULIB_DIRFD])
47  GNULIB_FDOPENDIR=0;   AC_SUBST([GNULIB_FDOPENDIR])
48  GNULIB_SCANDIR=0;     AC_SUBST([GNULIB_SCANDIR])
49  GNULIB_ALPHASORT=0;   AC_SUBST([GNULIB_ALPHASORT])
50  dnl Assume proper GNU behavior unless another module says otherwise.
51  HAVE_OPENDIR=1;       AC_SUBST([HAVE_OPENDIR])
52  HAVE_READDIR=1;       AC_SUBST([HAVE_READDIR])
53  HAVE_REWINDDIR=1;     AC_SUBST([HAVE_REWINDDIR])
54  HAVE_CLOSEDIR=1;      AC_SUBST([HAVE_CLOSEDIR])
55  HAVE_DECL_DIRFD=1;    AC_SUBST([HAVE_DECL_DIRFD])
56  HAVE_DECL_FDOPENDIR=1;AC_SUBST([HAVE_DECL_FDOPENDIR])
57  HAVE_FDOPENDIR=1;     AC_SUBST([HAVE_FDOPENDIR])
58  HAVE_SCANDIR=1;       AC_SUBST([HAVE_SCANDIR])
59  HAVE_ALPHASORT=1;     AC_SUBST([HAVE_ALPHASORT])
60  REPLACE_OPENDIR=0;    AC_SUBST([REPLACE_OPENDIR])
61  REPLACE_CLOSEDIR=0;   AC_SUBST([REPLACE_CLOSEDIR])
62  REPLACE_DIRFD=0;      AC_SUBST([REPLACE_DIRFD])
63  REPLACE_FDOPENDIR=0;  AC_SUBST([REPLACE_FDOPENDIR])
64])
65