Backporting LLVM 3.1 for Fedora 17

Michel Alexandre Salim salimma at fedoraproject.org
Mon Nov 19 01:09:16 UTC 2012


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On 11/17/2012 12:41 AM, Adam Jackson wrote:
> On Fri, 2012-11-16 at 16:32 +0100, Jakub Jelinek wrote:
> 
>> I guess for that it doesn't help that only one of the 4
>> llvm-libs shared libraries (libLLVM-3.*.so) has the version in
>> its name, the other 3 clearly dependent on that one don't,
>> eventhough I very much doubt they are anywhere close to be ABI
>> compatible.
> 
> Ugh, true.  Mercifully, nothing appears to be using them:
> 
> $ repoquery --provides llvm-libs.x86_64 BugpointPasses.so()(64bit) 
> LLVMgold.so()(64bit) config(llvm-libs) = 3.1-11.fc18 
> libLLVM-3.1.so()(64bit) libLTO.so()(64bit) 
> libprofile_rt.so()(64bit) llvm-libs = 3.1-11.fc18 llvm-libs(x86-64)
> = 3.1-11.fc18 $ repoquery --whatrequires
> 'BugpointPasses.so()(64bit)' $ repoquery --whatrequires
> 'LLVMgold.so()(64bit)' $ repoquery --whatrequires
> 'libLTO.so()(64bit)' $ repoquery --whatrequires
> 'libprofile_rt.so()(64bit)' $
> 
> So we should start by versioning those as well, even if we don't
> end up doing compat packages.
> 
On 11/17/2012 12:41 AM, Adam Jackson wrote:

There's now a rebuild of LLVM 3.1 for F17:

http://koji.fedoraproject.org/koji/buildinfo?buildID=367092

I'm not pushing it to the buildroot override yet (when we decide to go
ahead with this, it's probably best to create a separate tag --
presumably I should open a rel-eng ticket for that?); will try and
resolve the library versioning issue first.

Eric (the DragonEgg packager) expressed the interest in getting a more
recent LLVM in EPEL 6 as well; seeing as it's not a core component
yet, I'd probably do that as soon as the soname versioning is fixed,
unless there's any objection. The only feature that has to be disabled
is the LLVMgold linker.

Regards,

- -- 
Michel Alexandre Salim
Fedora Project Contributor: http://fedoraproject.org/

Email:  salimma at fedoraproject.org  | GPG key ID: A36A937A
Jabber: hircus at jabber.ccc.de       | IRC: hircus at irc.freenode.net

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