make -f makefile.Greyscale
make -f makefile.Edges
make -f makefile.Blur
# One set of these will fail, but so what?
mv obj.x86/GreyscaleFilter .
mv obj.x86/EdgesFilter .
mv obj.x86/BlurFilter .
mv obj.ppc/GreyscaleFilter .
mv obj.ppc/EdgesFilter .
mv obj.ppc/BlurFilter .
