- update to 2.2.1.5 (haskell-platform-2009.3.1)
    - update to ghc-rpm-macros-0.5.1 and cabal2spec-0.21.1:
    - drop doc and prof bcond
    - use common_summary and common_description
    - use ghc_lib_package and ghc_pkg_deps
    - build shared library
    - drop redundant buildroot and its install cleaning