Niklas Hambüchen authored Nov 08, 2019 and Alex Biehl committed Aug 14, 2021

* WIP: Still need to update ghc to use the new `libraryDirsStatic` and
       `extraLibrariesStatic` fields in `InstalledPackageInfo` for linking.
* WIP: Adding -L paths to .a libs in .conf files will likely increase nix
       closure size for dynamically linked Haskell packages because if pkg-config
       finds an `-a` file, the path to it will be remembered.
       (That only has an impact if the .a file is in a split-output from the .so file.)
       Perhaps we make the feature that `pkg-config --static` is called
       opt-outable.
       On the other hand Haskell libs always carry their .a files, so pulling
       a few system `.a` files more shouldn't make much of a difference.
       So this opt-out should probably be an extra feature for later, if at all.