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Date:      Mon, 08 Aug 2022 17:58:08 +0000
From:      bugzilla-noreply@freebsd.org
To:        ports-bugs@FreeBSD.org
Subject:   [Bug 265425] [exp-run] Against llvm-15-update branch on GitHub
Message-ID:  <bug-265425-7788-XUPJQoxzK0@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-265425-7788@https.bugs.freebsd.org/bugzilla/>
References:  <bug-265425-7788@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D265425

--- Comment #15 from Dimitry Andric <dim@FreeBSD.org> ---
(In reply to Brooks Davis from comment #14)
Yes, our ports only sporadically use USE_CSTD=3D, and that is a pity since
compilers tend to change their defaults every few years while lots of softw=
are
stays the same. :)

That said, it's not always as easy as "just set USE_CSTD=3Dgnu89". For inst=
ance,
one of the "top 5" ports Antoine mentions in comment 8 is devel/jam, which =
is a
prehistoric version of boost-build's bjam. This does not respect CFLAGS at =
all,
so options inserted by USE_CSTD are completely ignored. Also, since it is a
build tool, after its bootstrap phase it uses its *own* build logic (i.e.
jamfiles), which again have to be patched manually...

In any case, it might be possible to grep through the failure logs and iden=
tify
ports that fail due to K&R prototype warnings, then set those to USE_CSTD=
=3Dgnu89
(or some other old version). But you'd still have to attempt to build them
before committing. All in all quite a bit of work.

--=20
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