[GHC] #10410: make install installs haddck.t files

[GHC]

#10410: make install installs haddck.t files
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        Reporter:  nomeata           |                   Owner:
            Type:  bug               |                  Status:  patch
        Priority:  normal            |               Milestone:
       Component:  Build System      |                 Version:  7.10.1
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:  Phab:903
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Comment (by Thomas Miedema <thomasmiedema@…>):

 In [changeset:"388448bcc2e363d1913b5132a36ac7aaa20eafc0/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="388448bcc2e363d1913b5132a36ac7aaa20eafc0"
 Build system: don't install haddock .t files (#10410)

 When generating a haddock .t file for a library, don't save it in the
 `dist-install/doc` directory for that library, as then it gets copied to
 the installation directory during `make install` by `ghc-cabal copy`.
 Instead, save it a few directories up; putting it next to
 `haddock-prologue.txt` seemed appropriate.

 Test Plan: run `make` in `tests/perf/haddock`.

 Differential Revision: https://phabricator.haskell.org/D903
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10410#comment:2>
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