Make haddock compilable without ghci being enabled

Make haddock compilable without ghci being enabled, and set HADDOCK_DOCS default back to just YES. It was changed in this patch:

Sun Sep 20 19:13:19 BST 2009  Matthias Kilian <kili@outback.escape.de>
  * Don't build haddock if HADDOC_DOCS = NO, and disable HADDOC_DOCS if GhcWithInterpreter = NO
  Ignore-this: 1268ae31d74e746b09287814ee435f65
  Haddock uses TcRnDriver.tcRnGetInfo, which is only available if
  GHCI is built. Set HADDOC_DOCS to NO if GhcWithInterpreter is NO,
  and disable the haddock build if HADDOC_DOCS = NO.

Trac metadata

Trac field	Value
Version	6.10.4
Type	Task
TypeOfFailure	OtherFailure
Priority	high
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture

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