Compilation issues with GHC 8.8 due to the MonadFail change-over.

[ekmett]

HSCParser.hs:41:5: error:
    ‘fail’ is not a (visible) method of class ‘Monad’
   |
41 |     fail msg = Parser $ \pos _ -> Failure pos msg
   |     ^^^^

[phadej]

I made revisions for three latest releases: https://hackage.haskell.org/package/hsc2hs-0.68.4/revisions/

There are no hsc2hc compatible with ghc-8.8 (but there's patch in head.hackage).

[hvr]

This has been fixed last year already in Git via 6324184 and the upcoming hsc2hs-0.68.6 release (to go along with GHC 8.8.1) will contain it

[RyanGlScott]

hsc2hs-0.68.6 is now on Hackage.

[perlpunk]

I ran into the same error message for https://github.com/orenbenkiki/yamlreference
Any idea why on alpine linux ghc 8.8.3 is delivered with hsc2hs 0.68.5?

/ # hsc2hs --version
hsc2hs version 0.68.5
/ # ghc --version
The Glorious Glasgow Haskell Compilation System, version 8.8.3

Configuring executable 'yaml2yeast' for YamlReference-0.10.0..
Preprocessing executable 'yaml2yeast' for YamlReference-0.10.0..
Building executable 'yaml2yeast' for YamlReference-0.10.0..
[1 of 2] Compiling Text.Yaml.Reference ( Text/Yaml/Reference.hs, /tmp/yamlreference-master/dist-newstyle/build/x86_64-linux/ghc-8.8.3/YamlReference-0.10.0/x/yaml2yeast/build/yaml2yeast/yaml2yeast-tmp/Text/Yaml/Reference.o )                        

Text/Yaml/Reference.hs:711:3: error:
    ‘fail’ is not a (visible) method of class ‘Monad’
    |
711 |   fail message = Parser $ \ state -> failReply state message
    |   ^^^^

Should I build hsc2hs from source or maybe wait for an alpine update?
Dockerfile: https://github.com/yaml/yaml-runtimes/blob/update-alpine/docker/haskell/alpine-builder.dockerfile
Install script: https://github.com/yaml/yaml-runtimes/blob/update-alpine/docker/haskell/utils/hs-build.sh

See also yaml/yaml-runtimes#8