[Haskell-cafe] Cabal message problem.

[Magicloud Magiclouds]

On Thu, Dec 16, 2010 at 2:59 PM, Ivan Lazar Miljenovic
<ivan.miljenovic at gmail.com> wrote:
> On 16 December 2010 17:26, Magicloud Magiclouds
> <magicloud.magiclouds at gmail.com> wrote:
>> And, sure, I could reinstall Cabal. Then things seem fine. But it is
>> weird. I have to have the same packages installed at two places of the
>> system.
>
> What makes you say that?  Does "ghc-pkg list" show it twice?
>
> --
> Ivan Lazar Miljenovic
> Ivan.Miljenovic at gmail.com
> IvanMiljenovic.wordpress.com
>

Yep.
For example, now I have message as this when installing darcs.
<command line>: cannot satisfy -package Cabal-1.10.0.0:
    Cabal-1.10.0.0-9ac678c7f1e4f8dd31bac0e19f600698 is unusable due to
missing or recursive dependencies:
      process-1.0.1.4-24e3819e5c17aaf49bfec6a0ab739420
    (use -v for more information)
The only way I know to get rid of this is to install Cabal-1.10.0.0
again. Then you could see that, it exists both global and user.
$ ghc-pkg list
/usr/local/lib/ghc-7.0.1/package.conf.d
   Cabal-1.10.0.0
   array-0.3.0.2
   base-4.3.0.0
   bin-package-db-0.0.0.0
   bytestring-0.9.1.8
   containers-0.4.0.0
   directory-1.1.0.0
   extensible-exceptions-0.1.1.2
   ffi-1.0
   filepath-1.2.0.0
   ghc-7.0.1
   ghc-binary-0.5.0.2
   ghc-prim-0.2.0.0
   haskell2010-1.0.0.0
   haskell98-1.1.0.0
   hpc-0.5.0.6
   integer-gmp-0.2.0.2
   old-locale-1.0.0.2
   old-time-1.0.0.6
   pretty-1.0.1.2
   process-1.0.1.4
   random-1.0.0.3
   rts-1.0
   template-haskell-2.5.0.0
   time-1.2.0.3
   unix-2.4.1.0
/home/magicloud/.ghc/i386-linux-7.0.1/package.conf.d
   Cabal-1.10.0.0
   HTTP-4000.0.10
   binary-0.5.0.2
   containers-0.3.0.0
   dataenc-0.13.0.4
   deepseq-1.1.0.2
   directory-1.0.1.2
   filepath-1.1.0.4
   html-1.0.1.2
   mmap-0.5.7
   mtl-1.1.1.1
   network-2.2.1.10
   parsec-2.1.0.1
   process-1.0.1.4
   regex-base-0.93.2
   regex-compat-0.93.1
   regex-posix-0.94.4
   tar-0.3.1.0
   terminfo-0.3.1.3
   text-0.11.0.1
   utf8-string-0.3.6
   zlib-0.5.2.0
-- 
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