Build system: when used in a monorepo, do not invoke opam to figure out the level of parallelism. Instead, use sysctl to obtain the number of cores and provide 1 as a default value. (@RyanGibb, #18)
6.2.1-3
CI: test cross-compilation with ocaml-solo5 instead of ocaml-freestanding (@TheLortex, #16)
Use sed -i -e to fix compilation on FreeBSD (@hannesm, #15)