Currently -fPIC -fPIE seems to be the same as -fPIE. Unfortunately, -fPIE -fPIC also seems to be the same as -fPIE. It seems to me that, as is usual with conflicting options, we should use the one that appears last on the command line.
Do we have an existing mechanism in options processing for one option to turn off another, where the options are not exact inverses? I looked for one but I didn't see one. There is support for that for options with the Mask property, but I don't see it for non-target options. Ian
