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emacs/m4/dirent_h.m4
Paul Eggert 5badc81c1c Update copyright year to 2017
Run admin/update-copyright.
2016-12-31 19:42:26 -08:00

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# dirent_h.m4 serial 16
dnl Copyright (C) 2008-2017 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])
])