Hi Richard. I've been converting the ppc options to use the .opt machinery, and am confused as to how to approach subtargets.
What's the deal with these? I need options only for certain subtargets. For example, aix.h has some options that should not be available by other targets. I don't see anything relevant in options.texi, and I don't see any converted backend that has this problem. Should we just include the options for all subtargets, or should we add generic functionality (I volunteer if so). Or...am I missing something completely obvious? Aldy
