[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:  new
              Priority:  normal      |         Milestone:
             Component:  Build       |           Version:  7.10.1
  System                             |  Operating System:  Unknown/Multiple
              Keywords:              |   Type of failure:  None/Unknown
          Architecture:              |        Blocked By:
  Unknown/Multiple                   |   Related Tickets:
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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 Since changeset:55cdcc96/ghc, building GHC creates `.haddock.t` files with
 statistics. I’m not sure how useful they are in general, but they are
 definitely not useful in release tarballs.

 Currently, `make install` copies them. This affects both the binary
 release on the ghc page as well as distribution packages (checked Debian
 and Fedora).

 It seems these files are used by the test suite
 (`testsuite/tests/perf/haddock/all.T`), so probably `make install` should
 be taught to ignore them.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10410>
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