checking for gfind... no
checking for find... /usr/bin/find
checking for sort... /usr/bin/sort
checking for GHC version date... given 8.1.20160101
checking for GHC Git commit id... inferred b469b308351cf6120e335bf2127c13ec56b6c381
checking for ghc... /usr/local/bin/ghc
checking version of ghc... 7.8.3
configure: error: GHC version 7.10 or later is required to compile GHC.