On Mon, Sep 30, 2013 at 12:36 AM, Herbert Valerio Riedel wrote:

On 2013-09-30 at 08:26:10 +0200, Bryan O'Sullivan wrote:

...

Most of the breakage could be fixed by loosening the dependencies on the template-haskell and primitive packages, and here are the rest.

Btw/fyi, as one of the new killer features of Hackage 2, incorrect build-deps were supposed to be fixable easily by editing the .cabal directly (e.g. by a team of devoted Hackage trustees) and thus fix-up the build-deps on Hackage w/o needing to upload a full new release, but see

https://github.com/haskell/hackage-server/issues/52

Being one of those trustees and seeing the large number of failures I kinda doubt the viability of this approach. I for one don't feel like manually editiing ~200 package's descriptions manually. -- Johan

I'll take a look at the roles failures. It would be helpful to know if we've found bugs in libraries' code or if this is just the "no-role-polymorphism" problem. On Oct 1, 2013, at 4:13 AM, Simon Peyton-Jones wrote:

Bryan

That’s amazingly helpful thank you.

I undertake to fix the dmdTransformDictSelSig: split failed problem, by the end of this week at the latest.

I’m agnostic about the rest… that is, is there anything we might do to ameliorate?

Simon

From: ghc-devs [mailto:ghc-devs-bounces@haskell.org] On Behalf Of Bryan O'Sullivan Sent: 30 September 2013 07:26 To: ghc-devs@haskell.org Subject: HEAD vs Hackage status report

I spent a little time the other day building all of Hackage with GHC HEAD. Here's a quick writeup of what I found.

Total packages: 5564

Succeeded with 7.6.3: 3234

Succeeded with HEAD: 2061

Succeeded with 7.6.3 but failed with HEAD: 1186

(A few dozen packages built with HEAD, but not with 7.6.3, which is why the numbers don't add up.)

I think the condensed version of the story is that we're actually in good shape, the above numbers notwithstanding. There are only a few categories of build regression, which I detail below. Except for one genuine bug, the rest (at least those I've seen so far) are upgrade details that could be written about in release notes or a blog post.

There currently exists just one panic-related bug, which prevents all 23 packages in the Snap web framework from building:

ghc: panic! (the 'impossible' happened)

(GHC version 7.7.20130923 for x86_64-unknown-linux):

dmdTransformDictSelSig: split failed

Of the 1186 packages that build with 7.6.3 but not HEAD:

311 fail due to cabal being unable to solve dependency constraints. As usual, most (195) have excessively tight constraints on base.

37 packages fail due to GeneralizedNewtypeDeriving and the new role infrastructure, due to the following failures in packages upon which they depend.

12 language-c-0.4.2 the last parameter of ‛Error’ is at role Nominal

11 logfloat-0.12.1 the last parameter of ‛IArray’ is at role Nominal

5 diagrams-lib-0.7.1.1 the last parameter of ‛Transformable’ is at role Nominal

4 smallcheck-1.0.4 the last parameter of ‛MonadLogic’ is at role Nominal

2 monadiccp-0.7.6 the last parameter of ‛ReaderM’ is at role Nominal

2 histogram-fill-0.8.1.0 the last parameter of ‛BinEq’ is at role Nominal

1 acme-schoenfinkel-0.1.1 the last parameter of ‛ArrowApply’ is at role Nominal

There's quite a bit of transitive primop-related breakage.

364 template-haskell-2.8.0.0 Couldn't match expected type ‛Bool’ with actual type ‛Int#’

48 primitive-0.4.1 Couldn't match expected type ‛Bool’ with actual type ‛Int#’

6 primitive-0.5.0.1 Couldn't match expected type ‛Bool’ with actual type ‛Int#’

Most of the breakage could be fixed by loosening the dependencies on the template-haskell and primitive packages, and here are the rest.

63 uulib-0.9.15 Couldn't match expected type ‛Bool’ with actual type ‛Int#’

20 utf8-light-0.4.0.1 Couldn't match expected type ‛Bool’ with actual type ‛Int#’

19 safeint-0.5.3 Couldn't match expected type ‛Bool’ with actual type ‛Int#’

16 permutation-0.4.1 Couldn't match expected type ‛Bool’ with actual type ‛Int#’

9 floatshow-0.2.3 Couldn't match expected type ‛Bool’ with actual type ‛Int#’

9 bytestring-show-0.3.5.5 Couldn't match expected type ‛Bool’ with actual type ‛Int#’

8 STMonadTrans-0.3.1 Couldn't match expected type ‛Bool’ with actual type ‛Int#’

7 hashtables-1.1.0.2 Couldn't match expected type ‛Bool’ with actual type ‛Int#’

2 word24-1.0.3 Couldn't match expected type ‛Bool’ with actual type ‛Int#’

2 arithmoi-0.4.0.3 Couldn't match expected type ‛Bool’ with actual type ‛Int#’

1 word8-0.0.3 Couldn't match expected type ‛Bool’ with actual type ‛Int#’

1 IORefCAS-0.2.0.1 Couldn't match expected type ‛Bool’ with actual type ‛Int#’

Roughly 45 packages are broken by changes to Typeable.

_______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://www.haskell.org/mailman/listinfo/ghc-devs