#3852: Building GHC 6.12.1 with Cabal 1.9.0 installed
---------------------------------+------------------------------------------
    Reporter:  simonmar          |        Owner:                         
        Type:  bug               |       Status:  new                    
    Priority:  high              |    Milestone:  6.12.2                 
   Component:  Build System      |      Version:  6.12.1                 
    Keywords:                    |   Difficulty:  Easy (less than 1 hour)
          Os:  Unknown/Multiple  |     Testcase:                         
Architecture:  Unknown/Multiple  |      Failure:  Building GHC failed    
---------------------------------+------------------------------------------
 Reported by Nicolas Martyanoff `<[email protected]>` on glasgow-haskell-
 users.  I expect the build system is picking up Cabal 1.9.0 in preference
 to the version in the source tree.

 ----

 I thought it might be good to build GHC 6.12.1 with itself just to be sure
 it's working fine before make a dist, but I now get the following error:

 {{{
 "/usr/local/bin/ghc"   -H32m -O  -package-conf
 libraries/bootstrapping.conf  -package-name ghc-6.12.1 -hide-all-packages
 -i -icompiler/nativeGen -icompiler/basicTypes -icompiler/cmm
 -icompiler/codeGen -icompiler/coreSyn -icompiler/cprAnalysis
 -icompiler/deSugar -icompiler/ghci -icompiler/hsSyn -icompiler/iface
 -icompiler/main -icompiler/parser -icompiler/prelude -icompiler/profiling
 -icompiler/rename -icompiler/simplCore -icompiler/simplStg
 -icompiler/specialise -icompiler/stgSyn -icompiler/stranal
 -icompiler/typecheck -icompiler/types -icompiler/utils
 -icompiler/vectorise -icompiler/stage1/build
 -icompiler/stage1/build/autogen -Icompiler/stage1/build
 -Icompiler/stage1/build/autogen -Icompiler/stage1
 -Icompiler/../libraries/base/cbits -Icompiler/../libraries/base/include
 -Icompiler/. -Icompiler/parser -Icompiler/utils    -optP-include
 -optPcompiler/stage1/build/autogen/cabal_macros.h -package Cabal-1.9.0
 -package array-0.3.0.0 -package base-4.2.0.0 -package bin-package-
 db-0.0.0.0 -package bytestring-0.9.1.5 -package containers-0.3.0.0
 -package directory-1.0.1.0 -package filepath-1.1.0.3 -package hpc-0.5.0.4
 -package old-time-1.0.0.3 -package process-1.0.1.2 -package unix-2.4.0.0
 -DSTAGE=1 -Wall -fno-warn-name-shadowing -fno-warn-orphans -XCPP
 -XMagicHash -XUnboxedTuples -XPatternGuards -XForeignFunctionInterface
 -XEmptyDataDecls -XTypeSynonymInstances -XMultiParamTypeClasses
 -XFlexibleInstances -XRank2Types -XScopedTypeVariables
 -XDeriveDataTypeable -XRelaxedPolyRec     -odir compiler/stage1/build
 -hidir compiler/stage1/build -stubdir compiler/stage1/build -hisuf hi
 -osuf  o -hcsuf hc -c compiler/main/Packages.lhs -o
 compiler/stage1/build/Packages.o

 compiler/main/Packages.lhs:233:63:
     Couldn't match expected type `InstalledPackageInfo_ String'
            against inferred type
 `Cabal-1.8.0.2:Distribution.InstalledPackageInfo.InstalledPackageInfo_
                                     m'
       Expected type: [InstalledPackageInfo_ String]
       Inferred type:
 [Cabal-1.8.0.2:Distribution.InstalledPackageInfo.InstalledPackageInfo_
                         m]
     In the second argument of `map', namely `conf'
     In the first argument of `return', namely
         `(map installedPackageInfoToPackageConfig conf)'
 gmake[1]: *** [compiler/stage1/build/Packages.o] Error 1
 gmake: *** [all] Error 2
 }}}

 I tried to "ghc-pkg mask" Cabal-1.8.0.2, then Cabal-1.9.0, didn't change
 anything.

 Does someone know what's going on here, and what can be done to fix it ?

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3852>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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