The iRRAM-backend of version of kirk depends on my master-branch of iRRAM, <https://github.com/fbrausse/iRRAM> There is a preliminary Haskell binding is implemented using the hmpfr library, <https://hackage.haskell.org/package/hmpfr> which uses the function 'peekP' to construct Data.Number.MPFR objects from raw data. This function has not been exposed by hmpfr before v0.4.3. It is enabled by the Makefile automatically, if 'ghc-pkg' finds hmpfr-0.4.3. Another Haskell MPFR backend, rounded-0.1.0.1, <https://github.com/michalkonecny/rounded/tree/michal> is selected by the Makefile, if 'ghc-pkg' finds rounded-0.1.0.1. This option takes precedence if both are available.