[GHC] #9186: GHC panic when compiling compdata

[GHC]

#9186: GHC panic when compiling compdata
------------------------------------+-------------------------------------
       Reporter:  snoyberg          |             Owner:
           Type:  bug               |            Status:  new
       Priority:  normal            |         Milestone:  7.8.3
      Component:  Compiler          |           Version:  7.8.2
       Keywords:                    |  Operating System:  Unknown/Multiple
   Architecture:  Unknown/Multiple  |   Type of failure:  None/Unknown
     Difficulty:  Unknown           |         Test Case:
     Blocked By:                    |          Blocking:
Related Tickets:                    |
------------------------------------+-------------------------------------
 When testing ghc-7.8.2.20140609 with Stackage, I came across the following
 ghc panic:

 [51 of 62] Compiling Data.Comp.Ordering ( src/Data/Comp/Ordering.hs,
 dist/build/Data/Comp/Ordering.o )
 ghc: panic! (the 'impossible' happened)
   (GHC version 7.8.2.20140609 for x86_64-unknown-linux):
     Loading temp shared object failed: /tmp/ghc4836_0/ghc4836_257.so:
 undefined symbol:
 compdatazm0zi8zi1zi0_DataziCompziDeriveziUtils_zdwabstractConType_info

 Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

 Failed to install compdata-0.8.1.0

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9186>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler