- update to 6.12.1 rc2
    - build shared libs, woohoo! and package in standalone libs subpackage
    - add bcond for manual and extralibs
    - reenable ppc secondary arch
    - don't provide ghc-haddock-*
    - no longer need BR ncurses-devel or post policycoreutils requires
    - add vanilla v to GhcLibWays when building without prof
    - handle without hscolour
    - can't smp make currently
    - lots of filelist fixes for handling shared libs
    - run ghc-pkg recache posttrans
    - no need to install gen_contents_index by hand