Bad linking on MacOSX

[guest]

Hello, "cabal install gtk" succeeds (with warnings).. but it seems to pick up the wrong architecture bindings.

The following is when I try to run the "Hello World" example from GHCI. Loading package cairo-0.12.0 ... can't load .so/.DLL for: Xdmcp (dlopen(/opt/local/lib/libXdmcp.dylib, 9): no suitable image found. Did find:

/opt/local/lib/libXdmcp.dylib: mach-o, but wrong architecture)

Env details: OS: MacOS X Snow Leopard GHC: 6.12.3