4.02

You already have d83caab: that's just the patches from "whitequark", tracked under pull request #38 (i.e., it's same as  f50b1a4).
You don't (as far as I can tell) have 1314638: those are changes I had to make to get the source to compile warning-free with 4.02 compiler.
If you had a branch which contains d83caab (aka f50b1a4), I could rebase to that branch, and send you just 1314638, but I couldn't find such a branch in your repo, so I am not sure how to proceed.  Maybe you could update the patch you have in opam to include my changes?