> Hi,
>
> I'm running Mac OS X Snow Leopard. I've done a "sudo cabal install gtk
> --global" on my system, and it warns me that "file was built for unsupported
> file format which is not the architecture being linked (i386)". What does
> this refer to?
>
> Subsequently, nothing else _links_ properly with gtk.
>
> For example, hp2any-manager (or other tools) all fail during linking with
> gtk.
>
> Am I doing something wrong?
>

At one point I had this problem due to hsc2hs attempting to build 64-bit.
What happens if you try running:

cabal install gtk --global --hsc2hs-flags=--cflags=-m32

(I think that's the incantation I used).

Apologies for not remembering more details, but I'm strongly suspicious that
the issue lies in hsc2hs.

Small addendum - this is assuming that gtk+ is indeed available as 32-bit, as Greg confirmed is necessary. I would check the gtk libraries with "lipo -info" to see the available architectures.