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From:   Rolf Eike Beer <eb@emlix.com>
To:     Masahiro Yamada <masahiroy@kernel.org>
Cc:     David Woodhouse <dwmw2@infradead.org>,
        Linux Kernel Developers List <linux-kernel@vger.kernel.org>,
        David Howells <dhowells@redhat.com>, keyrings@vger.kernel.org,
        Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>
Subject: Re: [PATCH v5] scripts: use pkg-config to locate libcrypto
Date:   Tue, 26 Jan 2021 09:01:20 +0100
Message-ID: <2384276.IbH9z7ADXJ@devpool47>
Organization: emlix GmbH
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From: Rolf Eike Beer <eb@emlix.com>
To: Masahiro Yamada <masahiroy@kernel.org>
Cc: David Woodhouse <dwmw2@infradead.org>, Linux Kernel Developers List <linux-kernel@vger.kernel.org>, David Howells <dhowells@redhat.com>, keyrings@vger.kernel.org, Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>
Subject: Re: [PATCH v5] scripts: use pkg-config to locate libcrypto
Date: Tue, 26 Jan 2021 09:01:20 +0100
Message-ID: <2384276.IbH9z7ADXJ@devpool47>
Organization: emlix GmbH
In-Reply-To: <CAK7LNAQykaDV4DfOv2xzK1fQLEK_hVY3CamAWNXn+-ELJOJdiA@mail.gmail.com>
References: <20538915.Wj2CyUsUYa@devpool35> <2525730.a3zTd9XyL1@devpool47> <CAK7LNAQykaDV4DfOv2xzK1fQLEK_hVY3CamAWNXn+-ELJOJdiA@mail.gmail.com>

Am Dienstag, 26. Januar 2021, 07:30:03 CET schrieb Masahiro Yamada:
> On Tue, Jan 26, 2021 at 2:42 PM Rolf Eike Beer <eb@emlix.com> wrote:
> > Am Mittwoch, 13. Januar 2021, 13:49:12 CET schrieb Rolf Eike Beer:
> > > Otherwise build fails if the headers are not in the default location.
> > > While
> > > at it also ask pkg-config for the libs, with fallback to the existing
> > > value.
> >=20
> > Can someone please take this through the kbuild-tree? Noone seems to be
> > interested in picking this up so far.

> Is 'PKG_CONFIG' necessary?
>=20
> I see many Makefiles hard-coding 'pkg-config'.

Well, it depends ;)

When people use pkgconf then this usually installs a pkg-config alias, too,=
 so=20
that would be no problem. The problem comes when other places in the kernel=
=20
start copying that code over, and then hardcode pkg-config for stuff that=20
needs a prefixed pkg-config because it is about target code.

Given that I would prefer it this way, but YMMV. If it is that variable tha=
t=20
blocks integrating I'll change it.

Eike
=2D-=20
Rolf Eike Beer, emlix GmbH, http://www.emlix.com
=46on +49 551 30664-0, Fax +49 551 30664-11
Gothaer Platz 3, 37083 G=C3=B6ttingen, Germany
Sitz der Gesellschaft: G=C3=B6ttingen, Amtsgericht G=C3=B6ttingen HR B 3160
Gesch=C3=A4ftsf=C3=BChrung: Heike Jordan, Dr. Uwe Kracke =E2=80=93 Ust-IdNr=
=2E: DE 205 198 055

emlix - smart embedded open source

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