On Wed, Mar 20, 2024 at 08:05:13AM +1100, Dave Chinner wrote: > Is that right? This can only return true if V4 support is compiled > in, but it should be the other way around - always return true if > V4 support is not compiled in. i.e: Yes. I actually also fixed that when I redid the patch. The downside is that despite the additional stubs we actually remove less code now.