synopsis: Add support for multiple public libraries to the solver packages: cabal-install issues: #6039 prs: #6836 #6812 #6047 description: { cabal-install can now take into account the presence and visibility of sublibraries when solving. This also means that, when using cabal-install, multiple public libraries support is extended to GHCs older than 8.8. The support is limited to source packages for now. }