openbsd-amd64-head (OpenBSD/amd64 HEAD (Roland Zumkeller)), build 22, Failure

[Builder]

openbsd-amd64-head (OpenBSD/amd64 HEAD (Roland Zumkeller)), build 22

Build failed
Details: http://haskell.inf.elte.hu/builders/openbsd-amd64-head/22.html

git clone                    | Success
create mk/build.mk           | Success
get subrepos                 | Success
repo versions                | Success
touching clean-check files   | Success
setting version date         | Success
booting                      | Success
configuring                  | Success
creating check-remove-before | Success
compiling                    | Failure: Just (ExitFailure 2)

Build failed
Details: http://haskell.inf.elte.hu/builders/openbsd-amd64-head/22.html

-------------- next part --------------
[82 of 87] Compiling Distribution.Simple.Test ( libraries/Cabal/Cabal/Distribution/Simple/Test.hs, bootstrapping/Distribution/Simple/Test.o )
[83 of 87] Compiling Distribution.Simple.BuildTarget ( libraries/Cabal/Cabal/Distribution/Simple/BuildTarget.hs, bootstrapping/Distribution/Simple/BuildTarget.o )
[84 of 87] Compiling Distribution.Simple.Build ( libraries/Cabal/Cabal/Distribution/Simple/Build.hs, bootstrapping/Distribution/Simple/Build.o )
[85 of 87] Compiling Distribution.Simple.Haddock ( libraries/Cabal/Cabal/Distribution/Simple/Haddock.hs, bootstrapping/Distribution/Simple/Haddock.o )
[86 of 87] Compiling Distribution.Simple ( libraries/Cabal/Cabal/Distribution/Simple.hs, bootstrapping/Distribution/Simple.o )
[87 of 87] Compiling Main             ( utils/ghc-cabal/Main.hs, bootstrapping/Main.o )
Linking utils/ghc-cabal/dist/build/tmp/ghc-cabal ...
/usr/local/lib/ghc/libHSrts.a(RtsFlags.o)(.text+0x2cd): In function `copyArg':
: warning: strcpy() is almost always misused, please use strlcpy()
/usr/local/lib/ghc/libHSrts.a(RtsUtils.o)(.text+0x329): In function `showStgWord64':
: warning: sprintf() is often misused, please use snprintf()
"touch" utils/ghc-cabal/dist/build/tmp/ghc-cabal
"cp" utils/ghc-cabal/dist/build/tmp/ghc-cabal inplace/bin/ghc-cabal
"inplace/bin/mkdirhier" compiler/stage1/build//.
"rm" -f compiler/stage1/build/Config.hs  
Creating compiler/stage1/build/Config.hs ... 
done.
"inplace/bin/ghc-cabal" configure libraries/binary dist-boot "" --with-ghc="/usr/local/bin/ghc" --with-ghc-pkg="/usr/local/bin/ghc-pkg"  --package-db=/home/ghc-builder/build/builder/tempbuild/build/libraries/bootstrapping.conf --disable-library-for-ghci --enable-library-vanilla --disable-library-profiling --disable-shared --configure-option=CFLAGS=" -fno-stack-protector   " --configure-option=LDFLAGS="   " --configure-option=CPPFLAGS="   " --gcc-options=" -fno-stack-protector       " --configure-option=--with-iconv-includes="/usr/local/include" --configure-option=--with-iconv-libraries="/usr/local/lib" --configure-option=--with-gmp-includes="/usr/local/include" --configure-option=--with-gmp-libraries="/usr/local/lib"   --constraint "binary == 0.7.1.0"   --constraint "Cabal == 1.21.1.0"   --constraint "hpc == 0.6.0.2"   --constraint "bin-package-db == 0.0.0.0"   --constraint "hoopl == 3.10.0.2"   --constraint "transformers == 0.4.1.0"   --constraint "terminfo == 0.4.0.0" --with-gcc="/usr/bin/gcc" --configure-option=--with-cc="/usr/bin/gcc" --with-ar="/usr/bin/ar" --with-alex="/home/ghc-builder/.cabal/bin/alex" --with-happy="/home/ghc-builder/.cabal/bin/happy"
Configuring binary-0.7.1.0...
ghc-cabal: '/bin/tar' exited with an error:
tar: unknown option -- -
usage: tar {crtux}[014578befHhjLmNOoPpqsvwXZz]
[blocking-factor | archive | replstr] [-C directory] [-I file]
[file ...]
tar {-crtux} [-014578eHhjLmNOoPpqvwXZz] [-b blocking-factor]
[-C directory] [-f archive] [-I file] [-s replstr] [file ...]
libraries/binary/ghc.mk:3: recipe for target 'libraries/binary/dist-boot/package-data.mk' failed
gmake[1]: *** [libraries/binary/dist-boot/package-data.mk] Error 1
Makefile:71: recipe for target 'all' failed
gmake: *** [all] Error 2