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

[Adam Jackson]

On Thu, 2014-03-27 at 22:25 -0400, Jens Petersen wrote:
> Hi,
> 
> > 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.
> 
> One concern from me is that ghc on ARM uses llvm as its compiler backend.

Thanks for letting me know!  ghc doesn't show up as an llvm-libs
consumer on amd64 so I hadn't caught this.

Is it possible to build the llvm backend on other arches, even if only
locally?  That might at least allow me to shake out issues with the llvm
code outside of actual codegen.

- ajax