> My patch
> doesn't change anything that users experience at runtime and basically just
> prevents developers from compiling something that is using readdir without
> thinking about large files first (because they HAVE TO if their programs run
> on a host kernel that has bigger d_off--there's no sane way around it).

And just to be clear, they still SHOULD choose whether or not to support
large files even if the host kernel is 32 bit (!!!!)--see table.  It's
just less common there.