From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 907CAC433F5 for ; Wed, 1 Dec 2021 09:10:59 +0000 (UTC) Received: from EUR04-HE1-obe.outbound.protection.outlook.com (EUR04-HE1-obe.outbound.protection.outlook.com [40.107.7.77]) by mx.groups.io with SMTP id smtpd.web09.89854.1638349856415328960 for ; Wed, 01 Dec 2021 01:10:58 -0800 Authentication-Results: mx.groups.io; dkim=pass header.i=@vaisala.com header.s=selector1 header.b=VWaTKoJa; spf=pass (domain: vaisala.com, ip: 40.107.7.77, mailfrom: eero.aaltonen@vaisala.com) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=DjgkixU9kHIUWPI7ppcyG7743PfIab3LNMz67WJHhIVoNkb3g7sO0V1lf7xo54Z/qM3fkbji3H3YEJIwRbgmfb5xomFvVeLjTF0jfXiMQvE+p2VUJWFbuLDz8SQRhXQR9yYy9MPxflX5ttkVKrGMDBbSyHwp0BDF0FcBBUbyEvpCaq/eApgmgf8K5upkN5OK8orxiukn+s1P2hFMEFtj4AEq9nOLJ3qVU5ZjNU48i7NfofjVtYqzBpAVSmyl1+PImh+OkeOCqEF/naRmVgJo5ZLuI64kuiSvMc0CYTcc1NNqiYltHraWtnCzirmt39Rg+0nu2PoLrP2EB3AiK4Tw5Q== ARC-Message-Signature: i=1; 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b=VWaTKoJaEP/+qm30+ZlCpwpgFcVnhUNsi64y2DryflcoO4gNoLvecwVWL9+IdgDAmUV2WDbAEAdiiPcEageQRMhv8WS4boiG09wtFiKuvBB3TzFnrZSdpdUdX4qZGCe14X8Ln68w/12Z+ycGH6aLM50Us7/nr6nPH1OAXiob9nOwPXbENzvjzTNwGcaoZHtu7nQt5xYRCss4MUqahRPzDLzYdQv+Y+2Sm+15g8NusRoZEoSnmAwaY3OfF4Qs6/+1cYhtHOlVn/HmPVUSISFftDQNH6NLiss51HK8UHqK0QR0kLfu3ckxZGBznjyJUj16lgJF40SsIj4epJKKJJ0bWg== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=vaisala.com; Received: from HE1PR0602MB3340.eurprd06.prod.outlook.com (2603:10a6:7:23::31) by HE1PR0602MB3514.eurprd06.prod.outlook.com (2603:10a6:7:89::33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4734.22; Wed, 1 Dec 2021 09:10:53 +0000 Received: from HE1PR0602MB3340.eurprd06.prod.outlook.com ([fe80::d92:5470:cb89:9852]) by HE1PR0602MB3340.eurprd06.prod.outlook.com ([fe80::d92:5470:cb89:9852%3]) with mapi id 15.20.4734.027; Wed, 1 Dec 2021 09:10:53 +0000 Message-ID: <20fea928ba6e67fffae74459223ef5f8ba1d3050.camel@vaisala.com> Subject: Re: [OE-core] [RFC] meson needs a pkg-config wrapper script From: Eero Aaltonen To: alex.kanavin@gmail.com, Joel Winarske Cc: OE-core Date: Wed, 01 Dec 2021 11:11:47 +0200 In-Reply-To: References: Organization: Vaisala Content-Type: multipart/alternative; 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Wed, 01 Dec 2021 09:10:59 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/159020 --=-bf9Bs6aCF8Xc2Mb+bUuY Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit You can use `${pcfiledir}/../..` within a pkg-config file to reference the install path. Unfortunately the last time I tried it when cross-compiling, the PKG_CONFIG_SYSROOT_DIR was ended up in the path as a duplicate. -Eero On Wed, 2021-12-01 at 09:36 +0100, Alexander Kanavin via lists.openembedded.org wrote: > No, it's not that. Even if you pass PKG_CONFIG_SYSROOT_DIR to pkg- > config directly, it will apply that only to --cflags and similar, but > not to generic --variable. Try this: > > alex@alex-lx-laptop:~$ PKG_CONFIG_SYSROOT_DIR=/aaaa pkg-config libdrm > --cflags > -I/aaaa/usr/include/libdrm > alex@alex-lx-laptop:~$ PKG_CONFIG_SYSROOT_DIR=/aaaa pkg-config libdrm > --variable=includedir > /usr/include > > So a wrapper will not solve the 'includedir prefix' problem, and > neither the wrapper, nor pkg-config or meson can possibly know which > variable is a path, and which isn't - the only place where that is > known is the component that obtains the variable. And so that's where > it has to be prefixed. > > Alex > > > On Tue, 30 Nov 2021 at 23:38, Joel Winarske > wrote: > > Based on my testing, if PKG_CONFIG_SYSROOT_DIR is set or not makes > > zero difference on the outcome. I suspect this is related to how > > pkg-config is launched by meson. > > > > Looking at the meson source tree, in all ci/test cross compile > > scenarios they reference a pkg-config wrapper. No cross compile > > scenario I see referencing the 'pkgconfig' key uses a bare pkg- > > config. > > > > cross/armclang-linux.txt:#pkgconfig = '/usr/bin/arm-linux- > > gnueabihf-pkg-config' > > cross/linux-mingw-w64-32bit.txt:pkgconfig = '/usr/bin/i686-w64- > > mingw32-pkg-config' > > cross/linux-mingw-w64-64bit.txt:pkgconfig = '/usr/bin/x86_64- > > w64-mingw32-pkg-config' > > cross/ubuntu-armhf.txt:pkgconfig = '/usr/bin/arm-linux- > > gnueabihf-pkg-config' > > > > test cases/unit/33 cross file overrides always > > args/ubuntu-armhf-overrides.txt:pkgconfig = > > '/usr/bin/arm-linux-gnueabihf-pkg-config' > > test cases/unit/36 exe_wrapper behaviour/broken- > > cross.txt:pkgconfig = '/usr/bin/x86_64-w64-mingw32-pkg-config' > > > > > > I think adding a wrapper makes sense. > > > > 5.2 Tool Calling Conventions - > > https://autotools.io/pkgconfig/cross-compiling.html > > On Tue, Nov 30, 2021 at 12:13 PM Alexander Kanavin < > > alex.kanavin@gmail.com> wrote: > > > On Tue, 30 Nov 2021 at 21:00, Joel Winarske < > > > joel.winarske@gmail.com> wrote: > > > > Yes, if the sys_root key value in meson.cross is present > > > > PKG_CONFIG_SYSROOT_DIR gets set. Honister patch I confirmed > > > > with: > > > > https://github.com/jwinarske/manifests/blob/honister/rpi64/0001-Add-sys_root-to-properties-section.patch > > > > > > > > The issue is that meson doesn't pass PKG_CONFIG_SYSROOT_DIR to > > > > the shell environment that runs pkg-config, as with the pkg- > > > > config sandbox test it does work. > > > > > > > > > > Both meson source code and its documentation indicate otherwise - > > > if you set sys_root property, it will get passed to pkg-config > > > via environment as PKG_CONFIG_SYSROOT_DIR: > > > https://github.com/mesonbuild/meson/blob/master/mesonbuild/dependencies/pkgconfig.py#L121 > > > Alex > > > > > > > > -=-=-=-=-=-=-=-=-=-=-=-Links: You receive all messages sent to this > group.View/Reply Online (#159019): > https://lists.openembedded.org/g/openembedded-core/message/159019Mute > This Topic: https://lists.openembedded.org/mt/87407703/6584069Group > Owner: openembedded-core+owner@lists.openembedded.orgUnsubscribe: ht > tps://lists.openembedded.org/g/openembedded-core/unsub > [eero.aaltonen@vaisala.com]-=-=-=-=-=-=-=-=-=-=-=- > > --=-bf9Bs6aCF8Xc2Mb+bUuY Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable
You can = use `${pcfiledir}/../..` within a pkg-config file to reference the install = path.
Unfortunately the last time I tried it when cross-compi= ling, the PKG_CONFIG_SYSROOT_DIR was ended up in the path as a duplicate.

-Eero

On= Wed, 2021-12-01 at 09:36 +0100, Alexander Kanavin via lists.openembedded.o= rg wrote:
No, it's no= t that. Even if you pass PKG_CONFIG_SYSROOT_DIR to pkg-config directly, it = will apply that only to --cflags and similar, but not to generic --variable= . Try this:

alex@alex-lx-laptop:~$ PKG_CONFIG_SYSR= OOT_DIR=3D/aaaa pkg-config libdrm --cflags
-I/aaaa/usr/include/libdrmalex@alex-lx-laptop:~$ PKG_CONFIG_SYSROOT_DIR=3D/aaaa pkg-config libdrm --= variable=3Dincludedir
/usr/include

So a wrapper= will not solve the 'includedir prefix' problem, and neither the wrapper, n= or pkg-config or meson can possibly know which variable is a path, and whic= h isn't - the only place where that is known is the component that obtains = the variable. And so that's where it has to be prefixed.

=
Alex

On Tue, 30 Nov 2021 at 23:38, Joel Winarske <joel.winarske@gmail.com> wr= ote:
Based on my = testing, if PKG_CONFIG_SYSROOT_DIR is set or not makes zero difference on t= he outcome.  I suspect this is related to how pkg-config is launched b= y meson.

Looking at the meson source tree, in = all ci/test cross compile=20 scenarios they reference a pkg-config wrapper.  No cross compile=20 scenario I see referencing the 'pkgconfig' key uses a bare pkg-config.
<= /div>

    cross/armclang-linux.txt:#pkgco= nfig =3D '/usr/bin/arm-linux-gnueabihf-pkg-config'
    cr= oss/linux-mingw-w64-32bit.txt:pkgconfig =3D '/usr/bin/i686-w64-mingw32-pkg-= config'
    cross/linux-mingw-w64-64bit.txt:pkgconfig =3D= '/usr/bin/x86_64-w64-mingw32-pkg-config'
    cross/ubunt= u-armhf.txt:pkgconfig =3D '/usr/bin/arm-linux-gnueabihf-pkg-config'
&nbs= p;   test cases/unit/33 cross file overrides always=20 args/ubuntu-armhf-overrides.txt:pkgconfig =3D=20 '/usr/bin/arm-linux-gnueabihf-pkg-config'
    test cases/= unit/36 exe_wrapper behaviour/broken-cross.txt:pkgconfig =3D '/usr/bin/x86_= 64-w64-mingw32-pkg-config'

I think= adding a wrapper makes sense.

5.2 Tool Calling Co= nventions - https://autotools.io/pkgconfig/cross-compiling.html<= /div>

On Tue, Nov 30, 2021 at 12:13 PM Alexander Kanavin <alex.kanavin@gmail.com= > wrote:
On Tue, 30 Nov 2= 021 at 21:00, Joel Winarske <joel.winarske@gmail.com> wrote:
Yes, if the sys_root key value in m= eson.cross is present PKG_CONFIG_SYSROOT_DIR gets set.  Honister patch= I confirmed with:
https://github.com/jwinarske/manifests/blob/honister/rpi64/0001-Add-= sys_root-to-properties-section.patch

The issue= is that meson doesn't pass PKG_CONFIG_SYSROOT_DIR to the shell environment= that runs pkg-config, as with the pkg-config sandbox test it does work.


Both meson source code an= d its documentation indicate otherwise - if you set sys_root property, it w= ill get passed to pkg-config via environment as PKG_CONFIG_SYSROOT_DIR:
-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-
Links: You rec=
eive all messages sent to this group.
View/Reply Online (#159019)=
: https://lists.openembedded.org/g/openembedded-core/message/159019<=
/pre>
Mute This Topic: https://lists.openembedded.org/mt/87407703/6584069
=

Group Owner: openembedded-core+owner@lists.openembedded.org
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