freebsd-amd64-head (FreeBSD/amd64 HEAD (Gabor Pali)), build 1418, Failure

[Builder]

freebsd-amd64-head (FreeBSD/amd64 HEAD (Gabor Pali)), build 1418

Build failed
Details: http://haskell.inf.elte.hu/builders/freebsd-amd64-head/1418.html

git clone                    | Success
git clone (Windows tarballs) | Success
create mk/build.mk           | Success
repo versions                | Success
touching clean-check files   | Success
setting version date         | Success
booting                      | Success
configuring                  | Failure: Just (ExitFailure 1)

Build failed
Details: http://haskell.inf.elte.hu/builders/freebsd-amd64-head/1418.html

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configure: WARNING: unrecognized options: --with-ld
checking for gfind... no
checking for find... /usr/bin/find
checking for sort... /usr/bin/sort
checking for GHC version date... given 8.3.20170825
checking for GHC Git commit id... inferred aeb4bd958439515e02e6f8f9bb22cf84f7cd7d75
checking for ghc... /usr/local/bin/ghc
checking version of ghc... 7.10.2
configure: error: GHC version 8.0 or later is required to compile GHC.