GHC 8.1.20160111 fails to bootstrap itself.

Hello, bootstrapping GHC HEAD with HEAD is broken. The failure looks like:

libraries/binary/src/Data/Binary/Builder/Base.hs:67:0: error:
     missing binary operator before token "("

libraries/binary/src/Data/Binary/Builder/Base.hs:114:0: error:
     missing binary operator before token "("

libraries/binary/src/Data/Binary/Builder/Base.hs:123:0: error:
     missing binary operator before token "("
`gcc' failed in phase `C pre-processor'. (Exit code: 1)
gmake[1]: *** [utils/ghc-cabal/dist/build/tmp/ghc-cabal] Error 1
gmake: *** [all] Error 2

I'm setting highest prio on this (as I feel) so lower this if you like.

Trac metadata

Trac field	Value
Version	8.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	highest
Resolution	Unresolved
Component	Core Libraries
Test case
Differential revisions
BlockedBy
Related
Blocking
CC	ekmett
Operating system	Solaris
Architecture