[GHC] #8276: Building Haddock documentation panics with perf build on x86_64 Linux

[GHC]

#8276: Building Haddock documentation panics with perf build on x86_64 Linux
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        Reporter:  jstolarek           |            Owner:  thoughtpolice
            Type:  bug                 |           Status:  new
        Priority:  highest             |        Milestone:  7.8.1
       Component:  Documentation       |          Version:  7.7
      Resolution:                      |         Keywords:
Operating System:  Unknown/Multiple    |     Architecture:  x86_64 (amd64)
 Type of failure:  Compile-time crash  |       Difficulty:  Unknown
       Test Case:                      |       Blocked By:
        Blocking:                      |  Related Tickets:
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Comment (by SimonHengel):

 Say, I would like to change Haddock like so:
 https://github.com/sol/haddock/commit/b03718b80f0366c1e495f52d9468019360a5cca9

 Are we sure, that e.g. `cabal-install` never passes any static flags to
 Haddock?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8276#comment:30>
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