[Haskell-cafe] trouble using the aeson package

[anonymous]

I recently installed the aeson package using cabal-install without any
trouble:
❲~❳ uname -rspi; cabal -V; ghc -V; ghc-pkg list | grep
"aeson\|double-conversion"
Linux 2.6.38-10-generic x86_64 x86_64
cabal-install version 0.10.2
using version 1.10.1.0 of the Cabal library
The Glorious Glasgow Haskell Compilation System, version 7.0.3
    aeson-0.3.2.9
    double-conversion-0.2.0.1

However when I try to use it I receive this error message:
λ> let f = Data.Aeson.String
Loading package double-conversion-0.2.0.1 ... can't load .so/.DLL for:
stdc++ (libstdc++.so: cannot open shared object file: No such file or
directory)


This is the version I have installed:
❲~❳ aptitude search stdc++ | grep ^i
i   libstdc++6                      - The GNU Standard C++ Library
v3
i A libstdc++6-4.4-dev              - The GNU Standard C++ Library v3
(developme
i   libstdc++6-4.5-dev              - The GNU Standard C++ Library v3
(developme

❲~❳ aptitude show libstdc++6-4.4-dev | head -n 4
Package: libstdc++6-4.4-dev
State: installed
Automatically installed: yes
Version: 4.4.5-15ubuntu1
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