Bug#869752: transition: llvm-defaults to llvm 4.0

[Emilio Pozuelo Monfort <pochu@debian.org>]

Control: tags -1 confirmed

On 26/10/17 10:59, Emilio Pozuelo Monfort wrote:
> On 08/09/17 17:24, Sylvestre Ledru wrote:
>>
>> Le 08/09/2017 à 17:20, Emilio Pozuelo Monfort a écrit :
>>> On 26/07/17 09:04, Sylvestre Ledru wrote:
>>>>
>>>> Le 26/07/2017 à 09:02, Emilio Pozuelo Monfort a écrit :
>>>>> On 26/07/17 08:08, Sylvestre Ledru wrote:
>>>>>> Package: release.debian.org
>>>>>> Severity: normal
>>>>>> User:release.debian.org@packages.debian.org
>>>>>> Usertags: transition
>>>>>>
>>>>>> Hello,
>>>>>>
>>>>>> This is again the time to transition to a more recent version of LLVM.
>>>>>> This time to 4.0. Just like in bug 832098, I propose that we skip one version (3.9 here)
>>>>>>
>>>>>> All supported archs are green:
>>>>>> https://buildd.debian.org/status/package.php?p=llvm-toolchain-4.0&suite=sid
>>>>> I believe #866354 is a blocker for this.
>>>> ok, I can do that.
>>>>> BTW have you tested the build-rdeps against 4.0? What's the status?
>>>>>
>>>> not yet!
>>> ping? It'd be good to move away from llvm 3.8 as the default.
>>
>> For now, this is blocked by two issues (3.9 has some issues, I need to ask for a 
>> gb of 4.0):
> 
> 3.9 is in a bad shape atm, but 4.0 looks good. Since your plan was to move to
> 4.0 as default directly, is there anything blocking that? In fact that's already
> done in experimental. Have you rebuilt the rdeps so we know they are fine with
> 4.0 and can do this transition? Then many packages will automatically move from
> 3.8 to 4.0, easing the removal of 3.8.

I acked this over an irc query, as rdeps got rebuild-tested. Updating bug status
here.

3.7 is still blocked by ghc, but 8.2 (in experimental) uses 3.9... not ideal,
but soon we'll be able to remove 3.7. We may need to wait for ghc 8.4 to remove
3.9 though.

As for 3.8, llvm-defaults now points to 4.0 and the rdeps that were using a
versioned llvm/clang have been fixed, with a couple exceptions. But we should be
able to remove 3.8 from testing soon.

Emilio