HAVE_GCC3. if this is set, we also set USE_TOOLS_TOOLCHAIN=no. change
the definition of the former to be restricted to whether tools/toolchain
is used or not.
kernel compile flags as well as "-mlong-calls" so that calls from the
LKM in KSEG2 work to the kernel in KSEG0.
MIPS LKMs now build and can be loaded with the right Magick command line
args to modload(8). Changes to modload coming...
Thanks to Chris Demetriou for pointing out the -mlong-calls gcc option
that had been staring me in the face all along.