Did you google for "debian cross compiling"? Seemingly there are pre build toolchains available. https://wiki.debian.org/BuildingCrossCompilers https://www.google.de/search?q=debian+cross+platform+compiling&ie=utf-8&oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&channel=np&source=hp&gws_rd=cr&ei=PdguUtXAEo3UsgbA_YCoCQ#channel=np&q=debian+cross+compiling&rls=org.mozilla:en-US%3Aofficial