cabal build fails

[cdlm]

$ cabal install --minimize-conflict-set patat
Resolving dependencies...
Error: cabal: Could not resolve dependencies:
[__0] trying: patat-0.10.1.0 (user goal)
[__1] next goal: mtl (dependency of patat)
[__1] rejecting: mtl-2.3.1/installed-2.3.1 (conflict: patat => mtl>=2.2 &&
<2.3)
[__1] skipping: mtl-2.3.1 (has the same characteristics that caused the
previous version to fail: excluded by constraint '>=2.2 && <2.3' from 'patat')
[__1] trying: mtl-2.2.2
[__2] next goal: transformers (dependency of mtl)
[__2] rejecting: transformers-0.6.1.0/installed-0.6.1.0 (conflict: mtl =>
transformers>=0.4 && <0.6)
[__2] skipping: transformers-0.6.1.1, transformers-0.6.1.0,
transformers-0.6.0.6, transformers-0.6.0.2 (has the same characteristics that
caused the previous version to fail: excluded by constraint '>=0.4 && <0.6'
from 'mtl')
[__2] trying: transformers-0.5.6.2
[__3] trying: base-4.18.0.0/installed-4.18.0.0 (dependency of patat)
[__4] next goal: aeson (dependency of patat)
[__4] rejecting: aeson-2.2.1.0 (conflict: patat => aeson>=2.0 && <2.2)
[__4] skipping: aeson-2.2.0.0 (has the same characteristics that caused the
previous version to fail: excluded by constraint '>=2.0 && <2.2' from 'patat')
[__4] trying: aeson-2.1.2.1
[__5] next goal: th-abstraction (dependency of aeson)
[__5] rejecting: th-abstraction-0.6.0.0 (conflict: aeson =>
th-abstraction>=0.3.0.0 && <0.6)
[__5] trying: th-abstraction-0.5.0.0
[__6] trying: template-haskell-2.20.0.0/installed-2.20.0.0 (dependency of
aeson)
[__7] trying: semialign-1.3 (dependency of aeson)
[__8] trying: semialign:+semigroupoids
[__9] next goal: semigroupoids (dependency of semialign +semigroupoids)
[__9] rejecting: semigroupoids-6.0.0.1 (conflict: transformers==0.5.6.2,
semigroupoids => transformers>=0.6.1.0 && <0.7)
[__9] rejecting: semigroupoids-5.3.7 (conflict:
base==4.18.0.0/installed-4.18.0.0, semigroupoids => base>=4.3 && <4.18)
[__9] skipping: semigroupoids-5.3.6, semigroupoids-5.3.5, semigroupoids-5.3.4,
semigroupoids-5.3.3, semigroupoids-5.3.2, semigroupoids-5.3.1,
semigroupoids-5.2.2, semigroupoids-5.2.1, semigroupoids-5.2,
semigroupoids-5.1, semigroupoids-5.0.1, semigroupoids-5.0.0.4,
semigroupoids-5.0.0.3, semigroupoids-5.0.0.2, semigroupoids-5.0.0.1,
semigroupoids-5 (has the same characteristics that caused the previous version
to fail: excludes 'base' version 4.18.0.0)
[__9] rejecting: semigroupoids-4.3, semigroupoids-4.2, semigroupoids-4.0.4,
semigroupoids-4.0.3, semigroupoids-4.0.2.1, semigroupoids-4.0.2,
semigroupoids-4.0.1, semigroupoids-4.0, semigroupoids-3.1,
semigroupoids-3.0.3, semigroupoids-3.0.2, semigroupoids-3.0.1,
semigroupoids-3.0.0.2, semigroupoids-3.0.0.1, semigroupoids-3.0,
semigroupoids-1.3.4, semigroupoids-1.3.3, semigroupoids-1.3.2.1,
semigroupoids-1.3.2, semigroupoids-1.3.1.2, semigroupoids-1.3.1.1,
semigroupoids-1.3.1, semigroupoids-1.3, semigroupoids-1.2.6.2,
semigroupoids-1.2.6.1, semigroupoids-1.2.6, semigroupoids-1.2.5,
semigroupoids-1.2.4, semigroupoids-1.2.2.4, semigroupoids-1.2.2.3,
semigroupoids-1.2.2.2, semigroupoids-1.2.2.1, semigroupoids-1.2.2,
semigroupoids-1.2.1, semigroupoids-1.2.0, semigroupoids-1.1.3,
semigroupoids-1.1.2, semigroupoids-1.1.1, semigroupoids-1.1.0,
semigroupoids-1.0.0 (conflict: semialign +semigroupoids =>
semigroupoids>=5.3.2 && <6.1)
[__9] rejecting: semigroupoids-6 (conflict: base==4.18.0.0/installed-4.18.0.0,
semigroupoids => base>=4.9 && <4.18)
[__9] skipping: semigroupoids-5.3, semigroupoids-4.5 (has the same
characteristics that caused the previous version to fail: excludes 'base'
version 4.18.0.0)
[__9] fail (backjumping, conflict set: base, semialign, semigroupoids,
transformers, semialign:semigroupoids)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: aeson, base, patat, semigroupoids,
template-haskell, semialign, semialign:semigroupoids, th-abstraction,
transformers, mtl

[cdlm]

PS. the homebrew tap is deprecated (archived repo) and doesn't build either…

[jaspervdj]

This seems to be the core issue:

rejecting: mtl-2.3.1/installed-2.3.1 (conflict: patat => mtl>=2.2 && <2.3)

I don’t think there’s any reason that patat won’t work with mtl 2.3. I can test and adjust that, and put out a new release tomorrow. In the meantime, maybe the standalone darwin binary works?

[jaspervdj]

Building using cabal should work after doing a cabal update at this point. I will add a note that a maintainer is wanted for the homebrew build...

[cdlm]

Yup, it built fine; I haven't tried a slide deck yet, but it shows the usage message.

[jaspervdj]

Updated homebrew section here: https://github.com/jaspervdj/patat/commit/6a05c7592099ce8bdcef0b244e7ab76015e93cbd