bug#33922: failing git-annex build

[Kyle Meyer]

Timothy Sample <address@hidden> writes:

> Hi,
>
> Ricardo Wurmus <address@hidden> writes:
>
>> [...]
>>
>> It seems to me that this is a more general problem affecting all of our
>> Haskell packages.  The configure phase that you didn’t paste should show
>> that modules are provided by slightly different packages.
>>
>> The haskell-build-system suffers from non-determinism.  It might just be
>> limited to the package database files that are generated by ghc-pkg
>> (where readdir is used and the result isn’t sorted).
>
> This is exactly the problem.  I’ve attached a patch that should fix
> this.  Unfortunately, I kind of rediscovered this from scratch, so for
> the sake of completeness, here’s all the details of what I found.
> [...]

Interesting.  Thanks for taking the time to write up this analysis.