Undefined symbols for architecture x86_64 on Mac

[frasermince]

Upon running ./cabal new-build all on mac I get the error "Undefined symbols for architecture x86_64". Which is referenced in this issue. The solution is to add -dynamic to the ghc flags in the cabal files as is shown here. I would suggest adding something about this in the readme or perhaps in the cabal files themselves. Let me know what your thoughts are.