[GHC] #15190: disable haddock disables building of manuals

[GHC]

#15190: disable haddock disables building of manuals
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           Reporter:  juhpetersen    |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:  8.6.1
          Component:  Build System   |           Version:  8.2.2
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  Other
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 As far as I can tell disabling haddock in ghc causes the manuals also not
 to get built.  This is known/expected?

 I have not been able to track down why this seems to be the case.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15190>
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