I regularly get into version pinning conflicts with my haskell- packages. The current one has been going on for some days now: $ sudo pacman -Syu :: Synchronizing package databases... core is up to date haskell-core is up to date haskell-happstack is up to date infinality-bundle is up to date infinality-bundle-fonts is up to date extra is up to date community is up to date :: Starting full system upgrade... resolving dependencies... looking for inter-conflicts... error: failed to prepare transaction (could not satisfy dependencies) :: haskell-lens: requires haskell-aeson=0.7.0.6-9 :: haskell-lens: requires haskell-attoparsec=0.11.3.4-5 :: haskell-lens: requires haskell-bifunctors=4.1.1.1-14 :: haskell-lens: requires haskell-comonad=4.2.2-1 :: haskell-lens: requires haskell-contravariant=1.1-1 :: haskell-lens: requires haskell-free=4.9-7 :: haskell-lens: requires haskell-profunctors=4.2.0.1-1 :: haskell-lens: requires haskell-scientific=0.3.2.2-1 :: haskell-lens: requires haskell-semigroupoids=4.2-1 I don't so much mind that this is happening, as that it blocks my entire rest-of-system upgrade. Is there any easy way to recursively ignore everything that is unsatisfiable? martin