RFC: dropping IRIX support in xfsprogs

[Christoph Hellwig <hch@xxxxxxxxxxxxx>]

Hi all,

I'd like to know if anyone would complain about removing IRIX support
in xfsprogs?  It very much looks unmaintained for years, and due to
the IRIX differences in type defintions and kernel interfaces it's
actually a bit of a drag on xfsprogs, so unlike the other ports
to FreeBSD and Darwin it would actually be really helpful to remove
it.

I'd volunteer to prepare patches to remove the IRIX support and do
the resulting cleanups.