The first patch we were applying before didn't build on darwin so I created a
new PR building on that, adding a darwin conditional adding the missing flag.
Since this version of haskell-ci is effectively necessary to regenerate
the GitHub workflow for cabal2nix, let's not require contributors to
build this locally using cabal-install.
`ghc-vis` doesn't support library profiling, as noted in:
> http://felsin9.de/nnis/ghc-vis/#installation
This gets the package building and it runs fine when called from ghci as you
normally would, however when you actually try viewing an expression it fails
with the following error message:
```
ghc: Error running utility program: Unable to call the command dot with the
arguments: " -Txdot " because of: dot: runInteractiveProcess: posix_spawnp:
does not exist (No such file or directory)
```
As far as I can tell that is because `ghc-vis` needs to run dot at runtime but
since it's a library adding `graphviz` as a dependency doesn't quite do the
trick.
And while not ideal adding `graphviz` to the shell you're running `ghc-vis` at
works around this issue.
librsvg version 2.51.0 renames librsvg-features.h to rsvg-features.h and with
08fcd73d9d going in svgcairo broke again.
Renaming the library in the call site fixes the build.
Some version upgrades caused attributes to disappear. The upgrade from
language-docker 10.1.2 to 10.2.0 introduces a test failure which is
caused by missing files in the release tarball, so we need to fix this
up manually.
Previously ghcup was failing because of incompatibilities between optics
0.3 and 0.4. I'm personally not sure if hspec-golden-aeson 0.9.0.0 is
strictly necessary, but we may as well use this opportunity to start
ironing out the issues its quirky behavior since 0.8.0.0 causes.
This is fixed properly in candid 0.3 which we'll have soon, but in
the meantime we can just disable the offending warning. A real shame
that doctests are influenced by compiler warnings.
There's an open pull request that fixes the build but it's been sitting there
for a while, the fix is in a single commit so just applying the commit as a
patch. This will also allow us to fix ghc-vis later.
* haskell.packages.ghc884.ghc-api-compat needed us to re-add the 8.6
version of the package.
* haskell.packages.ghc901.ghc-api-compat now points to the newly
released 9.0.1 version of the package.
* haskell.packages.ghc8107.ghc-api-compat now correctly points to
ghc-api-compat 8.10.7.
GHC 9.2.1 is still unsupported (which is to be expected, with it
being a release candidate).
To make sure everything stays working we'll build ghc-api-compat as part
of versionedCompilerJobs.
