This fixes the “decompress” library on non-x86_64 platforms
ocamlPackages.git: 1.11.5 → 2.1.0 ocamlPackages.imagelib: 20171028 → 20191011 ocamlPackages.imagelib-unix: init
Chekseum is an OCaml library which implements ADLER-32 and CRC32C Cyclic Redundancy Check. It provides 2 implementation, the first in C and the second in OCaml. Homepage: https://github.com/mirage/checkseum