Sigh.  My Windows build is broken.  See below.  Any ideas?  The stage2 complier in non-interactive mode works ok. It’s just ghci fails.  What does “Not x86_64 PEi386” mean?  What can I do to fix?

I should say that my laptop broke so this is a new Windows machine, presumably with a slightly different config…

Simon

./inplace/bin/ghc-stage2 --interactive

GHCi, version 7.11.20151117: http://www.haskell.org/ghc/  :? for help

ghc-stage2.exe: panic! (the 'impossible' happened)

  (GHC version 7.11.20151117 for x86_64-unknown-mingw32):

     loadObj "C:\\code\\HEAD-1\\libraries\\ghc-prim\\dist-install\\build\\HSghc-prim-0.5.0.0.o": failed

Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

ghc-stage2.exe: C:\code\HEAD-1\libraries\ghc-prim\dist-install\build\HSghc-prim-0.5.0.0.o: Not x86_64 PEi386

/cygdrive/c/code/HEAD-1$