HEAD build fails with problem in InteractiveUI.hs

[Simon Marlow]

Max Bolingbroke wrote:
> I seem to be having problem with building GHC, possibly due to the
> recent patches to compiler/ghci/InteractiveUI.hs
> 
> The error is as follows:
> ""
> ghci/InteractiveUI.hs:367:37: Not in scope: `</>'
> 
> ghci/InteractiveUI.hs:373:39: Not in scope: `</>'
> 
> ghci/InteractiveUI.hs:388:28: Not in scope: `takeDirectory'
> <<ghc: 461754368 bytes, 56 GCs, 4925849/12431360 avg/max bytes
> residency (5 samples), 23M in use, 0.00 INIT (0.00 elapsed), 0.66 MUT
> (0.72 elapsed), 0.18 GC (0.19 elapsed) :ghc>>
> make[1]: *** [stage2/ghci/InteractiveUI.o] Error 1
> make: *** [stage2] Error 2
> ""

my fault, I only validated on Windows.  I'll push the fix shortly.

Cheers,
	Simon