Mercurial > gnulib
view m4/unlinkdir.m4 @ 36940:c741bc27922a
maint: update all copyright year number ranges
Run "make update-copyright". Compare to commit 1602f0a from last year.
Signed-off-by: Eric Blake <eblake@redhat.com>
author | Eric Blake <eblake@redhat.com> |
---|---|
date | Tue, 01 Jan 2013 00:50:58 +0000 |
parents | 807a2defea28 |
children | 344018b6e5d7 |
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# serial 7 # Copyright (C) 2005-2007, 2009-2013 Free Software Foundation, Inc. # # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # Written by Paul Eggert. AC_DEFUN([gl_UNLINKDIR], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_CHECK_HEADERS_ONCE([priv.h]) # The Hurd, the Linux kernel, the FreeBSD kernel version 2.2 and later, # Cygwin, and mingw never let anyone (even root) unlink directories. # If anyone knows of another system for which unlink can never # remove a directory, please report it to <bug-coreutils@gnu.org>. # Unfortunately this is difficult to test for, since it requires root access # and might create garbage in the file system, # so the code below simply relies on the kernel name and version number. case $host_os in gnu[[0-9]]* | \ linux-* | linux | \ freebsd2.2* | freebsd[[3-9]]* | freebsd[[1-9]][[0-9]]* | \ cygwin | \ mingw*) AC_DEFINE([UNLINK_CANNOT_UNLINK_DIR], [1], [Define to 1 if unlink (dir) cannot possibly succeed.]);; esac ])