7.10.1RC2 compile problem? ghc: internal error: PAP object entered!

[Reid Barton]

On Sat, Jan 31, 2015 at 10:47 AM, Reid Barton <rwbarton at gmail.com> wrote:

> On Sat, Jan 31, 2015 at 10:16 AM, Brandon Allbery <allbery.b at gmail.com>
> wrote:
>
>>
>> On Sat, Jan 31, 2015 at 8:34 AM, George Colpitts <
>> george.colpitts at gmail.com> wrote:
>>
>>> cabal install *--allow-newer=base*  accelerate
>>>
>>
>> Never safe, because base contains the runtime and the runtime and the
>> compiler are very tightly tied together. Crashes are not surprising.
>>
>
> Actually it should always be safe: --allow-newer=base is essentially the
> equivalent of removing the upper bound on base from the .cabal file (of
> every package that was installed during that run).
>
> However, I'm quite confused about something, namely that as far as I can
> tell, neither accelerate nor any of its dependencies contain a module
> Data.Label.Base. What package was GHC trying to build when it crashed?
>

Oops, I was running the wrong command: it's in fclabels. Please file a bug
report and attach the output of `cabal install --ghc-options=-v fclabels`,
thanks!

Regards,
Reid Barton
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