GHC 7.4,7.6,7.10 build failures

Question

GHC 7.4,7.6,7.10 build failures

bergmark opened this issue 9 years ago · 11 comments

The latest release doesn't build on GHC 7.10 (and dropped support for 7.4 and 7.6) , http://matrix.hackage.haskell.org/package/protocol-buffers#GHC-7.10/protocol-buffers-2.0.17

Answer 1 · 2015-07-03T20:05:59.000Z

I just queued builds for hprotoc and -descriptor as well, may take a while before the builder gets to it.

Answer 2 · 2015-07-03T21:06:44.000Z

@bergmark thanks for reporting! I'm adding travis for different GHCs, will try to fix things up.

Also, I never worked with hackage build-matrix. Will check it out. So far I can't even see matrix for latest release (2.1.0).

Answer 3 · 2015-07-03T23:35:06.000Z

It's currently building highlighting-kate against a new hashable so it's pretty clogged and it won't do a cabal update until that's done.

For the record only trustees can queue new builds, feel free to ping me about it.

Answer 4 · 2015-07-04T08:59:34.000Z

The build (finally) ran for the latest version, on 7.10:

Text/ProtocolBuffers/Identifiers.hs:124:24:
    Ambiguous occurrence ‘uncons’
    It could refer to either ‘Text.ProtocolBuffers.Identifiers.uncons’,
                             defined at Text/ProtocolBuffers/Identifiers.hs:103:3
                          or ‘Data.List.uncons’,
                             imported from ‘Data.List’ at Text/ProtocolBuffers/Identifiers.hs:33:1-16
                             (and originally defined in ‘GHC.List’)

Answer 5 · 2015-07-04T09:01:08.000Z

And the other two packages failed because they have protocol-buffers as a dependency.

Answer 6 · 2015-07-05T04:51:47.000Z

This is causing trouble for Stackage too.

Answer 7 · 2015-07-06T13:37:13.000Z

Fixed GHC 7.10 https://travis-ci.org/k-bx/protocol-buffers/builds/69730426

Answer 8 · 2015-07-06T14:18:29.000Z

Indeed! http://matrix.hackage.haskell.org/package/protocol-buffers#GHC-7.6/protocol-buffers-2.1.1 Thanks @k-bx.

Do you intend to support older GHCs as well or should we put a lower bound on base?

Answer 9 · 2015-07-06T14:22:48.000Z

@bergmark initially I thought only keeping ghc >= 7.8 support and wait for requests for older ones, then I considered your issue-report as a request for older GHCs and decided to take a look at older ones.

So, current plan: take a closer look at older GHCs when I'll get back home in Kyiv (in a week) and think on how hard would it be. Seems not very trivial from first look, but I'm sure it can be handled with some CPP.

Also, do you use/need older GHCs or did you just post an issue after looking at build-matrix?

Answer 10 · 2015-07-06T14:26:08.000Z

Because of build-matrix + I mistakenly thought your release broke backwards compat but that happened earlier.

My goal is simply for the version bounds to reflect reality.

Answer 11 · 2015-07-06T14:55:17.000Z

@bergmark pushed base >= 4.7.0 requirement for now, but will keep this issue opened for a while.