I am currently working to add proper support for OpenBSD in julia.
The purpose of this issue is to track the advancement.

dependencies

compilation

• libuv: need updated version (update libuv to latest commit (fixing libuv build on OpenBSD) #53401)
• libgit2: need a simple patch (upstream GIT_RAND_GETENTROPY: do not include sys/random.h libgit2/libgit2#6736) or >= 1.8.0
• llvm: doesn't build out-of-box
• llvm: might detect zstd if present

runtime errors

• openblas segfault easily (calling peakflops() is enough)
  • look at openblas build configuration

julia

implementation

• initial OpenBSD support (add initial support for OpenBSD #53633)
• implement profiling
• issues with stacktraces (usual cause of failures in tests)
• look at libgcc (library not present on OpenBSD)

others

• libraries versioning is usually controlled by OS (ABI)