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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@arminarm
Just posted a how-to on compiling Espruino on a Raspberry Pi with Raspbian here: http://forum.espruino.com/conversations/1671/ (in battle with forum software ;)
I did run into the "-O3" versus "-Os" gotcha. Never noticed before, because the ARMinARM board doesn't use your bootloader obviously and also has more room in the Flash department. Very interesting. What toolchain are you using?