Danny Milosavljevic <dannym@scratchpost.org> writes:

> * gnu/packages/haskell.scm (ghc-flac): New variable.

Cool!

[...]

> +    (native-inputs
> +     `(("ghc-hspec" ,ghc-hspec)
> +       ("hspec-discover" ,hspec-discover)))

Are these referenced by the built product? If so, they should be in
[inputs]. You can check references with `guix gc -R`, or try something
like `guix graph -t references ghc-flac | dot -T png | feh -` for a tree
view. Or grep the store paths for a "shotgun" approach :-)

The indentation is off some places, but otherwise this LGTM.