Maintainers of PowerPC Linux, NetBS
D, and FreeBSD should consider
whether and when they can cope with an ABI change, and remove the override from their header files when appropriate.
Remember NetBSD/PPC also has the mess to do with how .fini and .start (?) sections are built that needs merging in - FSF GCC can't use released versions of NetBSD's /usr/lib/*.o files because they are broken.
That makes two things that need fixing. Andrew