Allow files bigger than 2GiB for --patch-from option

[JuniorJPDJ]

This is very crucial for my usecase to have patches for files bigger than 2GiB. I'm trying to find suitable open-source and supported smv alternative as I've a big collection of files very similar to each other (100M patches on >5GiB files).
Is it hard to allow dictionaries larger than 2GiB? (As I suspect this is the limitation reason).
AFAIK 2 gigs is signed int size limit.

[Cyan4973]

Indeed, it's a non trivial patch.
And a non-trivial validation stage, to ensure no regression for existing use cases.

[cantalou]

We have the same problem. Is there a plan to support this?

[dbregman]

+1 for this, --patch-from is truly amazing, but lack of support for >2GiB is a problem for me.