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Date:      Tue, 26 Jul 2022 17:37:32 +0200
From:      Daniel Engberg <diizzy@FreeBSD.org>
To:        Baptiste Daroussin <bapt@freebsd.org>
Cc:        Andrea Pappacoda <andrea@pappacoda.it>, Alex Dupre <sysadmin@alexdupre.com>, freebsd-hackers@freebsd.org
Subject:   Re: pkg-config and share/
Message-ID:  <5f6e03bd468695f368e55a8839dc2838@FreeBSD.org>
In-Reply-To: <20220725111046.7sr7yyvsm5f3hyhj@aniel.nours.eu>
References:  <50B3D276-5E68-4F87-97FB-71D75D3D9602@pappacoda.it> <20220725081535.vuxy74odqt2cxdnw@aniel.nours.eu> <be19c9ab-c762-a0b4-a3d2-8ffbc45dd5ac@alexdupre.com> <20220725090824.qfeypgyugx6f7i6q@aniel.nours.eu> <CNMKFR.31V3MUTROVR7@pappacoda.it> <20220725111046.7sr7yyvsm5f3hyhj@aniel.nours.eu>

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On 2022-07-25 13:10, Baptiste Daroussin wrote:
> On Mon, Jul 25, 2022 at 12:04:24PM +0200, Andrea Pappacoda wrote:
>> Il giorno lun 25 lug 2022 alle 11:08:24 +02:00:00, Baptiste Daroussin
>> <bapt@FreeBSD.org> ha scritto:
>> > On Mon, Jul 25, 2022 at 10:54:57AM +0200, Alex Dupre wrote:
>> > >  On 25/07/22 10:15, Baptiste Daroussin wrote:
>> > >  > When pkg-config came out, (before my time) the .pc files were
>> > > naturally added to
>> > >  > libdata which is where most people hacking on freebsd would have
>> > > expected it.
>> > >  >
>> > >  > So when we switched to pkgconf we preserved that.
>> > >  >
>> > >  > Note that the ports tree on freebsd does not need patching as it
>> > > automatically
>> > >  > moves the .pc files from the "linux" location to libdata.
>> > >
>> 
>> Oh, nice! So I can simply install to share/ and FreeBSD will figure it 
>> out,
>> right?
> 
> if you create a package for the ports tree yes!

It doesn't move .pc files from share on my test boxes at least

>> 
>> > >  I'm not sure this fully answers Andrea's question. It explains why
>> > > we use
>> > >  `libdata` instead of `lib`, but not exactly why we don't use
>> > > `share` at all.
>> > >  Is it desired or simply it was added in pkg-config in a second time
>> > > and
>> > >  never added to the FreeBSD port?
>> >
>> > Not really except if someone comes with a strong argument, we can
>> > manipulate
>> > where pkgconf does look at, via environment variable if needed.
>> 
>> Yeah, I still feel that ignoring share/ is a bit odd, especially 
>> because you
>> lose the possibility of determining if a given .pc file refers to an
>> architecture-independent library or not. I don't know how much FreeBSD 
>> cares
>> about cross-builds, but I believe that keeping everything in the same 
>> dir
>> makes things harder (if not impossible).
> 
> how do I lose that? there is something that I am missing here. what is
> fundamentally different from share/pkgconfig and libdata/pkgconfig 
> beside the
> name of the directory?
>> 
>> > The reason we don't look elsewhere by default it to ensure we keep the
>> > room
>> > "clean" and people carefully store things where they are expected to be,
>> > if they
>> > don't, they do it on purpose and we offer mechanism to help them, (the
>> > env
>> > variable).
>> 
>> Yep, this makes sense. Every choice has its own trade-offs :)
>> 
>> Thank you both for your replies!
>> 
>> --
>> OpenPGP key: 66DE F152 8299 0C21 99EF  A801 A8A1 28A8 AB1C EE49
>> 
>> 
> 
> Best regards,
> bapt



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