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Date:      Tue, 3 Dec 2019 20:08:37 +0100
From:      Gunther Nikl <gnikl@justmail.de>
To:        Mark Linimon <linimon@lonesome.com>
Cc:        Jan Beich <jbeich@FreeBSD.org>, freebsd-x11@freebsd.org
Subject:   Re: mesa: LLVM_DEFAULT usage
Message-ID:  <20191203200837.00002360@justmail.de>
In-Reply-To: <20191202014823.GA26566@lonesome.com>
References:  <20191201175632.00000bf9@justmail.de> <a78b-didy-wny@FreeBSD.org> <20191202014823.GA26566@lonesome.com>

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Mark Linimon <linimon@lonesome.com> wrote:
> While not germane to the use of LLVM itself, I firmly believe
> that the LLVM_DEFAULT Makevar should never be overridden.  It is
> set in Mk/bsd.default-versions.mk and thus ought to be set by
> user choice.
> 
> Please see:
> 
>   https://wiki.freebsd.org/HardcodedLLVMVersions#Ports_That_Redefine_LLVM_VERSION

I had a look at this wiki page. The mesa ports only recently switched
to use of LLVM_DEFAULT. According to the wiki page you believe the mesa
port should have kept its MESA_LLVM_VER. It should use LLVM_DEFAULT as
a default value if there are no reasons to use a different value. This
seems to be a sane suggestion. I cannot tell if the ports tree should
use this idiom.

Regards,
Gunther



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