Weird symbol prevents GHCi from loading my package.

[Axel Simon]

Hi,

I built quite a big library and turned it into a package. It works fine if
use ghc -package gtk2 Blah.hs to compile things. But when I convert all
the libraries to object files as described in the documentation, GHCi
refuses to load the whole machinery:

~/source/mogul/fpDemo:$ ghci -package gtk2 Arabic.hs
   ___         ___ _
  / _ \ /\  /\/ __(_)
 / /_\// /_/ / /  | |      GHC Interactive, version 5.02.2, for Haskell
98.
/ /_\\/ __  / /___| |      http://www.haskell.org/ghc/
\____/\/ /_/\____/|_|      Type :? for help.

Loading package std ... linking ... done.
Loading package lang ... linking ... done.
Loading package gtk2 ...

GHCi runtime linker: fatal error: I found a duplicate definition for
symbol
   gcc2_compiled.
whilst processing object file
   /home/as49/local/lib/gtk2hs/gtk2hs.o
This could be caused by:
   * Loading two different object files which export the same symbol
   * Specifying the same object file twice on the GHCi command line
   * An incorrect `package.conf' entry, causing some object to be
     loaded twice.
GHCi cannot safely continue in this situation.  Exiting now.  Sorry.

The symbol obviously has nothing to do with GHCi, but I don't have a clue
how it got there and it probably does not matter as long as I don't use
GHCi. Does anybody know where it comes from? My library consists of a huge
bunch of modules, most of them having C calls and callbacks.

Thanks for hints,
Axel.


P.S.: Output from

~/source/mogul/fpDemo:$ ghc-pkg -s gtk2
Package
   {name = "gtk2",
    import_dirs = ["/home/as49/local/lib/gtk2hs/hi"],
    source_dirs = [],
    library_dirs =
      ["/home/as49/local/lib",
       "/home/as49/local/lib/gtk2hs",
       "/usr/X11R6/lib",
       "/usr/local/lib"],
    hs_libraries = ["gtk2hs"],
    extra_libraries =
      ["X11",
       "Xext",
       "atk",
       "gdk-x11-1.3",
       "gdk_pixbuf-1.3",
       "glib-1.3",
       "gmodule-1.3",
       "gobject-1.3",
       "gtk-x11-1.3",
       "iconv",
       "intl",
       "m",
       "pango",
       "pangox"],
    include_dirs =
      ["/home/as49/local/include/atk-1.0",
       "/home/as49/local/include/glib-2.0",
       "/home/as49/local/include/gtk-2.0",
       "/home/as49/local/include/pango-1.0",
       "/home/as49/local/lib/glib-2.0/include",
       "/home/as49/local/lib/gtk-2.0/include",
       "/home/as49/local/lib/gtk2hs/hi",
       "/usr/X11R6/include"],
    c_includes =
      ["Container_stub.h",
       "General_stub.h",
       "Signal_stub.h",
       "TreeSelection_stub.h",
       "gtk/gtk.h"],
    package_deps = ["lang"],
    extra_ghc_opts = ["-fglasgow-exts"],
    extra_cc_opts = [],
    extra_ld_opts = ["-u TreeSelection_dwzw", "-u TreeSelection_dwzx"]}