Comment 46 for bug 369498

for gio we need a glib patch like the one attached I would think.

on top a similar link from /usr/lib/gio/modules/i486-... -> /usr/lib32/gio/modules

For testing purpose I uploaded a glib package to my sandbox ppa with the patch applied.

   https://edge.launchpad.net/~asac/+archive/sandbox

Warning: This is all untested so unless you can check main apps like firefox upstream, skype and flash 32 bits, i would suggest to upload the gtk modules fix first and then do some proper testing on this gio feature for next upload.