[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
---------------------------------------+----------------------------------
        Reporter:  jstolarek           |            Owner:
            Type:  bug                 |           Status:  new
        Priority:  high                |        Milestone:
       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:
---------------------------------------+----------------------------------

Comment (by darchon):

 I've attached a "hack" for haddock that makes the reported error go away.
 What it does, is only restore the static flags when it's likely that
 'parseStaticFlags' will be called again.
 Now when I run "make" I get the same error as #8320.

 My guess is that there is some interaction between the use of
 'staticFlags' in GHC's error reporting and the exception handling code in
 haddock (the use of 'finally').
 Since I don't really understand what's going on, I'm classifying my patch
 as a hack.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8276#comment:10>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler