Arch Linux

If
* the xmobar config is written in pure haskell source
* imports Xmobar
then
* xmobar fails to compile the config
because
* it doesn't pass the -dynamic flag to ghc.

This bug prevents making custom plugin as described in https://xmobar.org/#plugins.

Possible Solution:
In the prepare section of the PKGBUILD, we can patch the source code to dynamically compile the config similar to how xmonad's PKGBUILD works. I think this follows k.i.s.s. the best and also stays similar to xmonad, a related package.

Steps to reproduce:
* install xmobar via pacman
* download attached sample config
* run xmobar ./xmobar.hs (this must be in the directory xmobar.hs is located)

Additional info:
* xmobar version: 0.35-23
* ghc: 8.10.1
* error:
Error detected while loading xmobar configuration file: ./xmobar.hs

xmobar.hs:19:1 error:
Could not find module 'Xmobar'
There are files missing in the 'xmobar-0.35' package,
try running 'ghc-pkg check'.
Use -v (or `:set -v` in ghci) to see a list of the files searched for.
|
19 | import Xmobar
| ^^^^^^^^^^^^^

Please check file for errors.