[GHC] #10264: AArch64 : Installing 7.10.1 fails

[GHC]

#10264: AArch64 : Installing 7.10.1 fails
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              Reporter:  erikd       |             Owner:
                  Type:  bug         |            Status:  new
              Priority:  normal      |         Milestone:
             Component:  Compiler    |           Version:  7.10.1
              Keywords:              |  Operating System:  Unknown/Multiple
          Architecture:              |   Type of failure:  None/Unknown
  Unknown/Multiple                   |        Blocked By:
             Test Case:              |   Related Tickets:
              Blocking:              |
Differential Revisions:              |
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 Built 7.10.1 from the release tarball, using ghc-7.6.3 from Debian. Build
 of the compiler goes fine, but when I install it I get:

 {{{
 "inplace/bin/ghc-cabal" register libraries/ghc-prim dist-install \
     "/home/erikd/GHC/7.10.1/lib/ghc-7.10.1/bin/ghc" \
     "/home/erikd/GHC/7.10.1/lib/ghc-7.10.1/bin/ghc-pkg" \
     "/home/erikd/GHC/7.10.1/lib/ghc-7.10.1" '' '/home/erikd/GHC/7.10.1' \
     '/home/erikd/GHC/7.10.1/lib/ghc-7.10.1' \
     '/home/erikd/GHC/7.10.1/share/doc/ghc/html/libraries' NO
 Warning: cannot determine version of
 /home/erikd/GHC/7.10.1/lib/ghc-7.10.1/bin/ghc-pkg :
 ""
 ghc-cabal: libraries/Cabal/Cabal/Distribution/Simple/GHC.hs:1050:5-47:
     Irrefutable pattern failed for pattern Data.Maybe.Just ver
 }}}


 The code in question is:
 {{{#!hs
 hcPkgInfo :: ProgramConfiguration -> HcPkg.HcPkgInfo
 hcPkgInfo conf = HcPkg.HcPkgInfo { HcPkg.hcPkgProgram    = ghcPkgProg
                                  , HcPkg.noPkgDbStack    = v < [6,9]
                                  , HcPkg.noVerboseFlag   = v < [6,11]
                                  , HcPkg.flagPackageConf = v < [7,5]
                                  , HcPkg.useSingleFileDb = v < [7,9]
                                  }
   where
     v               = versionBranch ver
     Just ghcPkgProg = lookupProgram ghcPkgProgram conf
     Just ver        = programVersion ghcPkgProg
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10264>
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