linux-kernel - Re: [PATCH v5] scripts: use pkg-config to locate libcrypto

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Date:   Tue, 26 Jan 2021 09:01:20 +0100
From:   Rolf Eike Beer <eb@...ix.com>
To:     Masahiro Yamada <masahiroy@...nel.org>
Cc:     David Woodhouse <dwmw2@...radead.org>,
        Linux Kernel Developers List <linux-kernel@...r.kernel.org>,
        David Howells <dhowells@...hat.com>, keyrings@...r.kernel.org,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>
Subject: Re: [PATCH v5] scripts: use pkg-config to locate libcrypto

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@...ix.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.
> > 
> > Can someone please take this through the kbuild-tree? Noone seems to be
> > interested in picking this up so far.

> Is 'PKG_CONFIG' necessary?
> 
> 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 
that would be no problem. The problem comes when other places in the kernel 
start copying that code over, and then hardcode pkg-config for stuff that 
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 that 
blocks integrating I'll change it.

Eike
-- 
Rolf Eike Beer, emlix GmbH, http://www.emlix.com
Fon +49 551 30664-0, Fax +49 551 30664-11
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