Heads up: Mesa/LLVM rebase and OpenGTL retirement in F20

[Paulo César Pereira de Andrade]

2014-03-27 17:40 GMT-03:00 Adam Williamson <awilliam at redhat.com>:
> On Thu, 2014-03-27 at 16:02 -0400, Adam Jackson wrote:
>> We'd like to update to Mesa 10.1 in Fedora 20, since the cycle is so
>> long before F21 and (among other goodies) it enables OpenGL 3.3 on some
>> newer Radeons.  This implies rebasing LLVM 3.4, and that's where it gets
>> a little awkward: the OpenGTL package only works up to LLVM 3.3.
>>
>> However, OpenGTL is dead upstream, and the only thing requiring it in
>> F20 gold - calligra-krita, by way of libQtGTL - has already been updated
>> to Obsolete OpenGTL.  As far as I know OpenGTL is the only such package
>> we have requiring LLVM 3.3, so the rest of the rebase should just be a
>> matter of updating to match F21.
>>
>> The following source packages will also be updated for the llvm rebase:
>>
>> dragonegg
>> gambas3
>> pocl
>> pure
>> python-llvmpy
>>
>> If there are no serious objections I'll try to get this all into testing
>> early next week.  If you _do_ happen to be using OpenGTL for something
>> in F20, now would be an excellent time for you to start working on
>> porting it to current LLVM.
>
> I can absolutely see the reasons for doing this, but...can it at least
> go through a fesco rubber stamp? Let's face it, entirely deprecating a
> library we shipped as part of the gold release seems to be a pretty
> flagrant violation of the update policy, and really ought to be granted
> a formal exception at the very least if it's going to go ahead.
>
> "As a result, we should avoid major updates of packages within a stable
> release. Updates should aim to fix bugs, and not introduce features,
> particularly when those features would materially affect the user or
> developer experience."
> "ABI changes in general are very strongly discouraged"
>
> https://fedoraproject.org/wiki/Updates_Policy#Stable_Releases
>
> Fedora *is* a platform, not just a set of packages, however half-assedly
> we conform to that vision, so I guess I just feel a bit uncomfortable
> not at least putting up a few hoops for this to jump through. :)

  This patch may be useful:
https://abf.rosalinux.ru/openmandriva/opengtl/blob/master/opengtl-0.9.18-llvm-3.4.patch

> --
> Adam Williamson
> Fedora QA Community Monkey
> IRC: adamw | Twitter: AdamW_Fedora | XMPP: adamw AT happyassassin . net
> http://www.happyassassin.net

Paulo