Cross compile helloworld.c

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You know I thought this would be so easy, and maybe it is...

I'm running Ubuntu 13.04 on an intel machine and I want to cross compile helloworld.c so that the resulting binary will execute on Ubuntu on a powerpc machine.

So something simple like:
 gcc helloworld.c --target powerpc-linux -o helloworldppc

But the answer seems to always come back how to cross compile gcc itself...

Anyone have a one liners on how to simply cross compile helloworld.c for ubuntu ppc?