[Plugin: WP-LESS] @import ?

Are @import rules supposed to work? I can’t get it to happen – or rather, it definitely won’t work with an import that lists other imports, but even when I don’t do those mports, it seems the resulting css file gets a bunch of static rules based on the imports.

I tried with these (that seem all too handy): https://github.com/stevelacey/less.js-css3-mixins