checking for path to top of build tree... /usr/home/ghc-builder/work/builder/tempbuild/build
checking for gfind... no
checking for find... /usr/bin/find
checking for sort... /usr/bin/sort
checking for GHC version date... given 8.1.20160106
checking for GHC Git commit id... inferred aa699b94e3a8ec92bcfa8ba3dbd6b0de15de8873
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.