cabal uses dynamic-linking for lifted-base

Hi, When I try to install libfted-base, cabal uses dynamic-linking while it uses static-linking for other libraries. So, I got the following error: % cabal install lifted-base /usr/bin/ld: cannot find -lHSmonad-control-0.3.2.1-ghc7.7.20130616 /usr/bin/ld: cannot find -lHStransformers-base-0.4.1-ghc7.7.20130616 /usr/bin/ld: cannot find -lHSbase-unicode-symbols-0.2.2.4-ghc7.7.20130616 If I explicitly enable/disable dynamic-linking, lifted-base can be installed. That is, the following two commands are valid: % cabal install lifted-base --enable-shared % cabal install lifted-base --disable-shared Why dynamic-linking is used for lifted-base (only)? --Kazu