Espruino on the Pi (with WiringPi)

quit() doesn't work in the last build.

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 1v75 Copyright 2015 G.Williams

>quit();
=undefined
Uncaught Error: Function "quit" not found!
 at line 1 col 1
quit();
 ^

Update: this is strange but "quit" works. I did "make clean; make" and "quit" works after rebuild. But it is possible that I only miss something, that I did some action and espruino damaged internal data structures and that was a reason why "quit" was not working.