[Pharo-project] FFI on Mac OSX

Hello, I'm trying to use an external library through FFI. On the Mac (Snow Leopard) I get the following error on the console: tryLoading /Applications/Smalltalk/Cog.app/Contents/Resources/libicui18n.dylib ioLoadModule(/Applications/Smalltalk/Cog.app/Contents/Resources/libicui18n.dylib): dlopen(/Applications/Smalltalk/Cog.app/Contents/Resources/libicui18n.dylib, 10): no suitable image found. Did find: /Applications/Smalltalk/Cog.app/Contents/Resources/libicui18n.dylib: mach-o, but wrong architecture What does "mach-o, but wrong architecture" mean? 64bits instead of 32 or something else? Jan.