[Haskell-cafe] Passing a cabal flag to stack

[Simon Jakobi]

Hi!

> So whats the official way of putting the -fgtk3 flag into stack?

To pass that flag to poppler, the syntax is

    --flag poppler:gtk3

> 1. Delete every file/directory under .stack-work that has the word poppler

That shouldn't be necessary.

> 2. stack build poppler --flag gtk:gtk3
> 3. stack build

It's best to be consistent about flag settings. It might be easiest to
put them in your stack.yaml:
http://docs.haskellstack.org/en/stable/yaml_configuration/#flags

Hope that helps!
Simon