haskell-call-stack: haskell-call-stack (backward compatible call stacks) haskell-call-stack: haskell-call-stack: Use GHC call-stacks in a backward compatible way. haskell-call-stack: haskell-call-stack: haskell-call-stack: haskell-call-stack: haskell-call-stack: haskell-call-stack: haskell-call-stack: haskell-call-stack: