precompile_assets: specify node runtime?

[giorgian]

rake assets:precompile needs a javascript runtime. I'm installing one via the javascript resource from poise-javascript, but ExecJS isn't finding it, as it's not in the PATH.

How do I fix this? Should I manually set the path to include node's bin dir? And if so, should I hardcode said path, or is there a way to extract it from the javascript resource?