F22 System Wide Change: GHC 7.8

[Jaroslav Reznik]

= Proposed System Wide Change: GHC 7.8 =
https://fedoraproject.org/wiki/Changes/GHC_7.8

Change owner(s): Jens Petersen <petersen at redhat.com>, Ricky Elrod 
<relrod at redhat.com>, Haskell_SIG <haskell at lists.fedoraproject.org>

Update the GHC Haskell compiler to the major new 7.8 release, and 
update/rebuild all Haskell packages against it. 

== Detailed Description ==
* The involves updating ghc from 7.6.3 to 7.8.1 (or later), and 
rebuilding/updating all Fedora Haskell packages.
* The initial work will be done locally offline to make sure that it is possible 
to build all our packages with ghc-7.8 and the latest updated libraries.
* This may also include building with the llvm backend to ensure that building 
on ARM will work.
* Once that is completed, building will be done into Koji for rawhide and 
testing done.

== Scope ==
* Proposal owners:
** locally test rebuilding and updating of all packages
** update macros to subpackage static libraries
** push changes to Koji
** testing

* Other developers:
** If you own a package which contains some Haskell code built with ghc you 
will need to rebuild you package to make sure it still rebuilds with ghc-7.8. 

Feel free to contact the Haskell SIG if we need assistance with fixing any 
build breakage, and we will try to help out.

* Release engineering: not required
* Policies and guidelines:
** There may be some lesser changes to the Haskell Packaging Guidelines needed 
- they could be done after this Change.
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