Unreliable BFD caching heuristic

[Tom Tromey]

>>>>> "Eli" == Eli Zaretskii <eliz@gnu.org> writes:

Luis> Thanks, but i don't think we would like to have windows-specific calls 
Luis> in such a generic portion of code.

Eli> I don't understand: if you want to use inode numbers on Posix systems,
Eli> which requires a Unix-specific call, then why not use
Eli> GetFileInformationByHandle, which gives the Windows equivalent of the
Eli> inode?  IOW, if you can have _real_ inodes on Windows, why risk the
Eli> fake ones?

FWIW it seems fine to me as well.
I'm sure one of our several existing portability mechanisms is suitable
for this task.

Tom