ordinal linking for cygwin ld

[Ralf Habacker]

> Ok, I see what it does. Doesn't it have to do that for each reference to
> the auto-imported variable?

For each auto-imported variable an IMAGE_IMPORT_DESCRIPTOR and an
IMPORT_THUNK_DATA element is necessary.

> If so, then heavy use of an imported variable could make the
> INT and IAT quite large - and lots of fixups
> needed.

Yes, these are the costs.