How do I make RubyGems install binaries to a different directory?

Question

I'm on OS X (Snow Leopard) and all I want is for gem to put the binaries it installs into /usr/local/bin instead of /usr/bin. This doesn't seem like it should be hard, but my Google-Fu is failing me this morning. What's the switch and/or config setting to control this?

Thanks.

Answer 1

It's the -n/--bindir switch.