Fix GHCJS setup on windows
Fix GHCJS setup on windows

(or so it seems, boot is still running)

anton-dessiatov/stack,vigoo/stack,Heather/stack,lukexi/stack,juhp/stack,rvion/stack,fizruk/stack,rubik/stack,Blaisorblade/stack,lukexi/stack,AndreasPK/stack,anton-dessiatov/stack,MichielDerhaeg/stack,deech/stack,mrkkrp/stack,AndreasPK/stack,rubik/stack,harendra-kumar/stack,narrative/stack,narrative/stack,luigy/stack,fizruk/stack,sjakobi/stack,supermario/stack,mathhun/stack,martin-kolinek/stack,juhp/stack,harendra-kumar/stack,keent/stack,supermario/stack,martin-kolinek/stack,luigy/stack,MichielDerhaeg/stack,phadej/stack,mathhun/stack,Fuuzetsu/stack,deech/stack,AndrewRademacher/stack,vigoo/stack,achernyak/stack,mrkkrp/stack,AndrewRademacher/stack,rvion/stack,Blaisorblade/stack,sjakobi/stack,Heather/stack,keent/stack,phadej/stack,achernyak/stack,Fuuzetsu/stack