[GHC] #14269: ghc: internal error: PAP object entered!

[GHC]

#14269: ghc: internal error: PAP object entered!
-------------------------------------+-------------------------------------
        Reporter:  erisco            |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.2
      Resolution:                    |             Keywords:
Operating System:  Windows           |         Architecture:  x86_64
 Type of failure:  Compile-time      |  (amd64)
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by RyanGlScott):

 I attempted to build `inline-c-0.6.0.5` with GHC 8.0.2 using `--allow-
 older`, but was thwarted:

 {{{
 $ cabal install -w /opt/ghc/8.0.2/bin/ghc inline-c --allow-older
 Resolving dependencies...
 Configuring inline-c-0.6.0.5...
 Building inline-c-0.6.0.5...
 Failed to install inline-c-0.6.0.5
 Build log (
 /u/rgscott/.cabal/logs/ghc-8.0.2/inline-c-0.6.0.5-6LPf8sxaoRe7ivvVOklwzp.log
 ):
 cabal: Entering directory '/tmp/cabal-tmp-15800/inline-c-0.6.0.5'
 Configuring inline-c-0.6.0.5...
 Preprocessing library for inline-c-0.6.0.5..
 Building library for inline-c-0.6.0.5..
 [1 of 9] Compiling Language.C.Types.Parse ( src/Language/C/Types/Parse.hs,
 dist/build/Language/C/Types/Parse.o )
 [2 of 9] Compiling Language.C.Types ( src/Language/C/Types.hs,
 dist/build/Language/C/Types.o )
 [3 of 9] Compiling Language.C.Inline.HaskellIdentifier (
 src/Language/C/Inline/HaskellIdentifier.hs,
 dist/build/Language/C/Inline/HaskellIdentifier.o )
 [4 of 9] Compiling Language.C.Inline.FunPtr (
 src/Language/C/Inline/FunPtr.hs, dist/build/Language/C/Inline/FunPtr.o )
 [5 of 9] Compiling Language.C.Inline.Context (
 src/Language/C/Inline/Context.hs, dist/build/Language/C/Inline/Context.o )

 src/Language/C/Inline/Context.hs:149:32: error:
     Not in scope: type constructor or class ‘TH.ForeignSrcLang’
     Neither ‘Language.Haskell.TH’ nor ‘Language.Haskell.TH.Syntax’ exports
 ‘ForeignSrcLang’.
 cabal: Leaving directory '/tmp/cabal-tmp-15800/inline-c-0.6.0.5'
 cabal: Error: some packages failed to install:
 inline-c-0.6.0.5-6LPf8sxaoRe7ivvVOklwzp failed during the building phase.
 The
 exception was:
 ExitFailure 1
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14269#comment:2>
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