Only problem is that I would either need a cross-compiler or a working AROS setup...
Do you have access to an x86 machine with an x86-elf gcc compiler installed? If so, just download the SDK from the AROS site's
download section and execute the installation script you find in it.
If instead you don't have access to such machine, but, for example, you work under AmigaOS, then you should first install a crosscompiler for any x86-elf target (i686-pc-linux-gnu would be ok, for instance). If you can't find binaries around, you can always try to build it yourself from the sources.
If it's all too much hassle for you, then I'm afraid you'll have to wait for me to finish my work on gcc.