From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id 8B8F53787 for ; Wed, 18 Nov 2015 14:32:43 +0100 (CET) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga101.jf.intel.com with ESMTP; 18 Nov 2015 05:32:22 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,313,1444719600"; d="scan'208";a="853851814" Received: from irvmail001.ir.intel.com ([163.33.26.43]) by fmsmga002.fm.intel.com with ESMTP; 18 Nov 2015 05:32:21 -0800 Received: from sivlogin002.ir.intel.com (sivlogin002.ir.intel.com [10.237.217.37]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id tAIDWKoO009014 for ; Wed, 18 Nov 2015 13:32:20 GMT Received: from sivlogin002.ir.intel.com (localhost [127.0.0.1]) by sivlogin002.ir.intel.com with ESMTP id tAIDWKgt023957 for ; Wed, 18 Nov 2015 13:32:20 GMT Received: (from fyigit@localhost) by sivlogin002.ir.intel.com with œ id tAIDWK6K023953 for dev@dpdk.org; Wed, 18 Nov 2015 13:32:20 GMT X-Authentication-Warning: sivlogin002.ir.intel.com: fyigit set sender to ferruh.yigit@intel.com using -f Date: Wed, 18 Nov 2015 13:32:20 +0000 From: Ferruh Yigit To: dev@dpdk.org Message-ID: <20151118133220.GA11599@sivlogin002.ir.intel.com> Mail-Followup-To: dev@dpdk.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit User-Agent: Mutt/1.5.17 (2007-11-01) Subject: [dpdk-dev] Compile errors with libc < 2.12 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Nov 2015 13:32:44 -0000 When libc version is < 2.12 there are two compile errors, both introduced in DPDK2.2, more details below. We can solve issue in a few ways: 1- Ignore errors, this depends on if any user has this version. glibc 2.12 released around 2010, still may have distros with libc < 2.12, at least SUSE11 does. 2- Make DPDK compatible with older glibc versions. 3- Use a compile option to wrap functionality that fails I prefer option 2, option 1 may break DPDK for some users, and option 3 adds new complexity and dependency to maintain. Please advise how to proceed? Compile issues: 1- pthread_setname_np() Error msg: error: implicit declaration of function ‘pthread_setname_np’ Reason: pthread_setname_np() introduced in glibc 2.12 Commit: eal: set name to threads (commit 67b6d3039e9edbc4624c878c6930be5e126e8b58) Introduced in: DPDK2.2 Comment: This is mostly for debug, can be reverted without functionality loss 2- CLOCK_MONOTONIC_RAW macro Error msg: error: identifier "CLOCK_MONOTONIC_RAW" is undefined Reason: CLOCK_MONOTONIC_RAW introduced in glibc 2.12 Commit eal/linux: make alarm not affected by system time jump (commit d08d304508a8a8caf255baf622ab65db1fec952c) Introduced in: DPDK2.2 Comment: Can keep functionality but may use supported "CLOCK_MONOTONIC" instead of "CLOCK_MONOTONIC_RAW" Thanks, ferruh