CI fails for GHC 8.0, not sure why:

Failed to build system-filepath-0.4.14. See the build log above for details.

setup: Unrecognised flags: lib:system-filepath

(Locally, I can build system-filepath-0.4.14 with GHC 8.0.2).

I released system-filepath-0.4.14.1 merging this PR:

• Remove Custom Setup.hs fpco/haskell-filesystem#27

That fixed the CI problem!

@stepcut : Please merge.

@stepcut : Please merge.

Too late.

I dropped the dependencies on old-locale and transformers-compact. time 1.5 and transformers 0.4 were already in use by the time GHC 8.0.2 was released, so I think there is no need for those anymore.

I manually hacked the generated .yml file to remove the bit that was adding,

ghc-options: -Werror=incomplete-patterns -Werror=incomplete-uni-patterns

A better hack is to add something to cabal.haskell-ci. Probably this option,

https://github.com/haskell-CI/haskell-ci/blob/97f55f9ea1f482319dac4300322946bd3967b1f8/src/HaskellCI/Config/Grammar.hs#L168

A proper fix is to remove the incomplete patterns from happstack-server entirely. But doing that and checking that it does not affect performance is somewhat involved for potentially little to no gain.

@stepcut: Thanks for the fixup. I didn't want to spend much time at that point because I wasn't sure to get your attention.

A better hack is to add something to cabal.haskell-ci. Probably this option,

I do this in a follow-up PR:

• Cosmetics for GHC 9.14 #88