From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: 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 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 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Sender: linux-btrfs-owner@vger.kernel.org List-ID: 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 -- Jeff Mahoney SUSE Labs