From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id D21A2A0A03; Mon, 18 Jan 2021 13:05:36 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 7C8EC140E74; Mon, 18 Jan 2021 13:05:36 +0100 (CET) Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by mails.dpdk.org (Postfix) with ESMTP id 22961140E5E for ; Mon, 18 Jan 2021 13:05:33 +0100 (CET) IronPort-SDR: huG/E7la/bpH02bPl52hoPqyxYJY4M/PldscPc8B6IFkRWbhOkW7SNvp3shfNJw5pFSatBZv6A AErZW8ZP9duA== X-IronPort-AV: E=McAfee;i="6000,8403,9867"; a="263599647" X-IronPort-AV: E=Sophos;i="5.79,356,1602572400"; d="scan'208";a="263599647" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Jan 2021 04:05:32 -0800 IronPort-SDR: 2mHPY5i/T8g760ZJQW3CI6//VWdWjwOT7AZu12rIZt/9k2hyDwDPQ/yQMt3CWCWc44iV+J8qEF BuBtgVokAvqw== X-IronPort-AV: E=Sophos;i="5.79,356,1602572400"; d="scan'208";a="383546094" Received: from fyigit-mobl1.ger.corp.intel.com (HELO [10.213.241.24]) ([10.213.241.24]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Jan 2021 04:05:31 -0800 From: Ferruh Yigit To: Bruce Richardson Cc: Hemant Agrawal , Akhil Goyal , "dev@dpdk.org" , David Marchand References: <20201221140402.GB1753@bricha3-MOBL.ger.corp.intel.com> <20210118105113.GA749@bricha3-MOBL.ger.corp.intel.com> Message-ID: <17596e93-78a9-c38e-261c-28949a0caa9b@intel.com> Date: Mon, 18 Jan 2021 12:05:27 +0000 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] meson: wrong dependency in cross compilation on ARM X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On 1/18/2021 11:58 AM, Ferruh Yigit wrote: > On 1/18/2021 10:51 AM, Bruce Richardson wrote: >> On Fri, Jan 15, 2021 at 06:40:56PM +0000, Ferruh Yigit wrote: >>> On 12/21/2020 2:04 PM, Bruce Richardson wrote: >>>> On Mon, Dec 21, 2020 at 12:19:17PM +0000, Hemant Agrawal wrote: >>>>> Hi, >>>>>                   I am trying to cross compile DPDK for arm64 on a ubuntu >>>>> machine, which has a zlib pre-installed for native env. >>>>> >>>>> I am encountering following build error in net_bnx2x as it has dependency >>>>> on zlib.  It is trying to link with x86 arch based zlib. >>>>> >>>>> Cross compiling zlib and setting the PKG_CONFIG_PATH solve the issue. But, >>>>> Is their an easy way to disable these dependencies? >>>>> >>>> Can you try with setting PKG_CONFIG_LIBDIR rather than PKG_CONFIG_PATH? >>>> PKG_CONFIG_PATH simply extends the search locations, which means that >>>> host-paths will still be searched, while PKG_CONFIG_LIBDIR replaces the >>>> default path, eliminating the host-based search paths. >>>> >>> >>> The 'PKG_CONFIG_LIBDIR' seems not taken into account by meson, Akhil >>> reported a 32bit build error when zlib is missing, I can reproduce the same. >>> >>> I have only 64bit version of the library: >>> >>> $ pkg-config --path zlib >>> /usr/lib64/pkgconfig/zlib.pc >>> >>> $ PKG_CONFIG_LIBDIR=/usr/lib/pkgconfig/ pkg-config --path zlib >>> >>> $ echo $? >>> 1 >>> >>> When I run the meson as following: >>> "PKG_CONFIG_LIBDIR=/usr/lib/pkgconfig/ meson --werror -Dc_args=-m32 >>> -Dc_link_args=-m32 -Dexamples=all build32" >>> >>> It still detects the zlib: >>> Run-time dependency zlib found: YES 1.2.11 >>> >> >> I've just tried this on my system and it works as expected: the 32-bit lib >> is not found and a build succeeds. Omitting the PKG_CONFIG_LIBDIR and it is >> found, but linking fails due to "file in wrong format" errors, again as >> expected. >> >> In your case, I suspect it might be meson falling back to cmake in the >> detection logic. If you have cmake installed on your system, can you >> perhaps temporarily remove it, and retry the 32-bit build? If that is the >> cause, we can modify the dependency call to add "method: 'pkg-config'" to >> it, to force pkg-config searches only. >> > > Yes I have cmake, I will try without it. > > Meanwhile I have Fedora, and it seems it is using different version of the > pkg-config (pkgconf), not sure if this can be a problem. > I confirm removing the 'cmake' solved the issue, now I am getting: "Run-time dependency zlib found: NO (tried pkgconfig and cmake)" And zlib dependent modules not enabled, so build runs successfully.