enable cabal-install (#5639)
enable cabal-install (#5639)

iand675/stackage,asr/stackage,Daniel-Diaz/stackage,michalkonecny/stackage,simonmichael/stackage,fpco/stackage,stackbuilders/stackage,fimad/stackage,soenkehahn/stackage,int-index/stackage,mstksg/stackage,massysett/stackage,peti/stackage,mrkkrp/stackage,clinty/stackage,mgajda/stackage,spencerjanssen/stackage,ethercrow/stackage,athanclark/stackage,wereHamster/stackage,jonschoning/stackage