checking for gfind... /opt/local/bin/gfind
checking for sort... /opt/local/bin/sort
checking for GHC version date... given 8.1.20160212
checking for GHC Git commit id... inferred dbf72dbc6e49b3db7f2337a7a41e95c1d0169163
checking for ghc... /usr/local/bin/ghc
checking version of ghc... 7.8.4
configure: error: GHC version 7.10 or later is required to compile GHC.