freebsd-amd64-head (FreeBSD/amd64 HEAD (Gabor Pali)), build 705, Failure

[Builder]

freebsd-amd64-head (FreeBSD/amd64 HEAD (Gabor Pali)), build 705

Build failed
Details: http://haskell.inf.elte.hu/builders/freebsd-amd64-head/705.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 2)

Build failed
Details: http://haskell.inf.elte.hu/builders/freebsd-amd64-head/705.html

-------------- next part --------------
checking for gfind... no
checking for find... /usr/bin/find
checking for sort... /usr/bin/sort
checking for GHC version date... given 7.11.20150731
checking for GHC Git commit id... inferred aee19d08ec36b0ec5d0ed4fab2b63c78a80dbc23
checking for ghc... /usr/local/bin/ghc
checking version of ghc... 7.8.3
checking build system type... x86_64-unknown-freebsd8.4
checking host system type... x86_64-unknown-freebsd8.4
checking target system type... x86_64-unknown-freebsd8.4
Build platform inferred as: x86_64-portbld-freebsd
Host platform inferred as: x86_64-portbld-freebsd
Target platform inferred as: x86_64-portbld-freebsd
GHC build  : x86_64-portbld-freebsd
GHC host   : x86_64-portbld-freebsd
GHC target : x86_64-portbld-freebsd
configure: Building in-tree ghc-pwd
checking for path to top of build tree... /usr/home/ghc-builder/work/builder/tempbuild/build
./configure: 4202: Syntax error: "(" unexpected