From patchwork Wed Aug 31 01:15:44 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Mahoney X-Patchwork-Id: 9306211 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id EF924607D2 for ; Wed, 31 Aug 2016 01:15:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DAB3728DE7 for ; Wed, 31 Aug 2016 01:15:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CF34328DEB; Wed, 31 Aug 2016 01:15:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B16D028DE7 for ; Wed, 31 Aug 2016 01:15:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753474AbcHaBPt (ORCPT ); Tue, 30 Aug 2016 21:15:49 -0400 Received: from mx2.suse.de ([195.135.220.15]:34373 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752016AbcHaBPs (ORCPT ); Tue, 30 Aug 2016 21:15:48 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id DBCAEAAF1 for ; Wed, 31 Aug 2016 01:15:46 +0000 (UTC) To: linux-btrfs From: Jeff Mahoney Subject: [PATCH] btrfsprogs: only install udev rules for udev >= 190 Message-ID: <57C62FC0.6020206@suse.com> Date: Tue, 30 Aug 2016 21:15:44 -0400 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.7.2 MIME-Version: 1.0 Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Prior to udev v190, there was no btrfs builtin helper. Installing it on systems with an older udev will cause problems. Signed-off-by: Jeff Mahoney --- configure.ac | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index 97e89f2..8fd8f42 100644 --- a/configure.ac +++ b/configure.ac @@ -161,7 +161,13 @@ PKG_STATIC(UUID_LIBS_STATIC, [uuid]) PKG_CHECK_MODULES(ZLIB, [zlib]) PKG_STATIC(ZLIB_LIBS_STATIC, [zlib]) -UDEVDIR="$(pkg-config udev --variable=udevdir)" +# udev v190 introduced the btrfs builtin and a udev rule to use it. +# Our udev rule gives us the friendly dm names but isn't required (or valid) +# on earlier releases. +UDEVDIR= +if pkg-config udev --atleast-version 190; then + UDEVDIR="$(pkg-config udev --variable=udevdir)" +fi AC_SUBST(UDEVDIR) dnl lzo library does not provide pkg-config, let use classic way