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# rmdir.m4 serial 17
dnl Copyright (C) 2002, 2005, 2009-2020 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_RMDIR],
[
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
dnl Detect cygwin 1.5.x bug.
AC_CHECK_HEADERS_ONCE([unistd.h])
AC_CACHE_CHECK([whether rmdir works], [gl_cv_func_rmdir_works],
[mkdir conftest.dir
touch conftest.file
AC_RUN_IFELSE(
[AC_LANG_PROGRAM(
[[#include <stdio.h>
#include <errno.h>
#if HAVE_UNISTD_H
# include <unistd.h>
#else /* on Windows with MSVC */
# include <direct.h>
#endif
]], [[int result = 0;
if (!rmdir ("conftest.file/"))
result |= 1;
else if (errno != ENOTDIR)
result |= 2;
if (!rmdir ("conftest.dir/./"))
result |= 4;
return result;
]])],
[gl_cv_func_rmdir_works=yes], [gl_cv_func_rmdir_works=no],
[case "$host_os" in
# Guess yes on Linux systems.
linux-* | linux) gl_cv_func_rmdir_works="guessing yes" ;;
# Guess yes on glibc systems.
*-gnu* | gnu*) gl_cv_func_rmdir_works="guessing yes" ;;
# Guess no on native Windows.
mingw*) gl_cv_func_rmdir_works="guessing no" ;;
# If we don't know, obey --enable-cross-guesses.
*) gl_cv_func_rmdir_works="$gl_cross_guess_normal" ;;
esac
])
rm -rf conftest.dir conftest.file])
case "$gl_cv_func_rmdir_works" in
*yes) ;;
*)
REPLACE_RMDIR=1
;;
esac
])
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