A package of minimal patches that fix the build for GHC 6.12 (tested
against 6.12.1 RC2).

Some of these have been submitted before but are stalled for various
reasons. I've tested this bundle with 6.8, 6.10 and 6.12.

Sun Dec 13 21:46:13 GMT 2009  Ganesh Sittampalam <ganesh@earth.li>
  * bump dependency upper bounds for GHC 6.12

Sun Dec 13 21:46:53 GMT 2009  Ganesh Sittampalam <ganesh@earth.li>
  * add GADTs to witnesses build
  
  This extension is needed in many more files for GHC 6.12 which
  requires that it is specified for any file that pattern 
  matches on GADTs as well as any file that defines them.
  

Sun Dec 13 23:29:22 GMT 2009  Ganesh Sittampalam <ganesh@earth.li>
  * add ImpredicativeTypes to extensions
  This is needed to build on GHC 6.12.
  Before 6.14, we need to drop our uses of impredicativity as
  this is now deprecated.
  

Sun Dec 13 23:30:23 GMT 2009  Ganesh Sittampalam <ganesh@earth.li>
  * remove unnecessary OPTIONS_GHC from Darcs/Commands/Record
  This is needed to build this file on GHC 6.12, because there is a new
  extension picked up by -fglasgow-exts that makes 'rec' a keyword, and
  this file has a variable called that.
  
  We should actually remove OPTIONS_GHC everywhere, but for now this is a
  minimal step to fix the build.

Attachments

• bump-dependency-upper-bounds-for-ghc-6_12.dpatch
• unnamed

On Sun, Dec 13, 2009 at 23:35:37 +0000, Ganesh Sittampalam wrote:
> A package of minimal patches that fix the build for GHC 6.12 (tested
> against 6.12.1 RC2).
> 
> Some of these have been submitted before but are stalled for various
> reasons. I've tested this bundle with 6.8, 6.10 and 6.12.

This will be going in once my staging repo (GHC 6.8) is happy.
It may be a good idea to recruit GHC 6.12 volunteers for the buildbot.

> Sun Dec 13 21:46:13 GMT 2009  Ganesh Sittampalam <ganesh@earth.li>
>   * bump dependency upper bounds for GHC 6.12
> 
> Sun Dec 13 21:46:53 GMT 2009  Ganesh Sittampalam <ganesh@earth.li>
>   * add GADTs to witnesses build

> Sun Dec 13 23:30:23 GMT 2009  Ganesh Sittampalam <ganesh@earth.li>
>   * remove unnecessary OPTIONS_GHC from Darcs/Commands/Record

These seem fairly straightforward.

> Sun Dec 13 23:29:22 GMT 2009  Ganesh Sittampalam <ganesh@earth.li>
>   * add ImpredicativeTypes to extensions
>   This is needed to build on GHC 6.12.
>   Before 6.14, we need to drop our uses of impredicativity as
>   this is now deprecated.

I'm pushing this one without learning what impredicative types are.

But those who are more able might consult
  http://www.haskell.org/ghc/docs/latest/html/users_guide/other-type-extensions.html
and the paper (or probably ask somebody who knows for pointers to the
relevant darcs source)

Thanks,

-- 
Eric Kow <http://www.nltg.brighton.ac.uk/home/Eric.Kow>
PGP Key ID: 08AC04F9

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