I have been doing some coding using RFFI to load function pointers from shared libraries (`llexternal` function).

However what bothers me is that apparently `Darwin_x86_64` platform class (defined in translator/platform/darwin.py) does not include ‘lib’ in `so_prefixes`. This is causing me some problems with not being able to find my shared libraries on macOS X.

I’m wondering if that’s intentional, or just a mistake? It should be a simple fix if it’s a mistake.

Regards,

John Zhang