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Haskell: can't compile warp in ghcWithPackages, maybe problem with nats? #7240
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Please see #7792 for details how to recover from this issue. |
This is getting pretty silly. I wonder if maybe we should fall back to 7.8.4 as default without parallel builds for now… |
i think traditionally new y releases are typically not seen to the community as stable until z turns 3 or at least 2. i don't think it would be inappropriate at all to treat 7.8.4 as the default. i am currently rushing to migrate some of my projects onto 7.10, but this is only because i am using ghcjs which is an immature enough platform that staying on the bloody edge is fine. for most projects, 7.8.4 is probably great until some time next year |
@dnhgff part of the rush to 7.10 was because a different non-determinism problem was fixed but of course part of it was because we like the bleeding edge ;). Alas we'd need more discussion first. It may just be that there will be a fix for our 7.10 problems in 7.10.2. |
Personally, I think that the problems we've had with 7.10.1 plus parallel building are not worse yet than the ones we've had with 7.8.4 w/o parallel building, so I'm included to wait a little longer before we decide to revert. We might also try to disable parallel building with 7.10.x first, if these kind of issues continue to pop up frequently. |
If you check my last comment on Trac 4012, you'll see that it happens without parallel builds too. But yes, I'd wait too, just putting the thought out there. |
I made this shell.nix file:
and tried to run it with:
I tried looking into it some and found that
nats
does not accept base-4.8. https://github.com/ekmett/nats/blob/master/nats.cabal#L49 I tried jailbreaking it but that did not seem to help:Environment:
cc @peti
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