>=dev-haskell/stm-2.3:0/2.5.0.2= <dev-haskell/stm-3:0/2.5.0.2= >=dev-haskell/transformers-base-0.4.4:0/0.4.6= <dev-haskell/transformers-base-0.5:0/0.4.6= >=dev-haskell/transformers-compat-0.3:0/0.7.2= <dev-haskell/transformers-compat-0.8:0/0.7.2= >=dev-lang/ghc-8.4.3:0/9.2.8= >=dev-haskell/cabal-2.2.0.1
