Portability fix-ups and generic chunk copy implementation.#51

Merged

kornelski merged 2 commits intocloudflare:gcc.amd64from sh1boot:portable

Nov 20, 2023

+144-49

Commits on Oct 31, 2023

Enable building for non-x86/arm targets.
Simon Hosie
committed
Use PRI*64 macros for trace formatting in trees.c.
Simon Hosie
committed