Make sublibraries public

[BinderDavid]

@jacobpake uses the frontend library from within the granule llvm compiler. We therefore need to make the sublibraries usable from within other projects.

[jacobpake]

Thanks @BinderDavid, this should work but I am still getting the error:

granule is a library dependency, but the package provides no library.

(I am depending only on granule:frontend)

Seems like a bug. If I add an empty default library to granule.cabal then it works:

granule/granule.cabal

Lines 66 to 68 in 739e37f

	library

[dorchard]

Did the last commit fix it for you @jacobpake?

[jacobpake]

yes, this will work

thanks @BinderDavid

[dorchard]

Great. I will merge.