make -j3 build of head on Mac 10.9 with xcode 5 fails
make -j3
fails with
Configuring ghc-bin-7.7.20131217...
Warning: 'data-dir: ..' is a relative path outside of the source tree. This
will not work when generating a tarball with 'sdist'.
ghc.mk:100: *** Make has restarted itself 2 times; is there a makefile bug? See http://ghc.haskell.org/trac/ghc/wiki/Building/Troubleshooting#Makehasrestarteditself3timesisthereamakefilebug for details. Stop.
make: *** [all] Error 2