Hi there, is there a way to cross-compile a KLib for to the ios and macbook targets from a linux host ?

You cannot compile for iOS/macOS on linux, only on mac

Correct, no cross-compilation to Apple targets from other hosts.

OK, thanks !

I’m curious. Is it impossible only because all platform libraries are mac only or even toolchain to build is not available? As I understand you can build something to llvm bitcode that compatible with iOS/macOS

It's possibe technically, but illegal. Well, maybe legal for personal use, but not in general. See https://github.com/tpoechtrager/osxcross

Well, it’s not absolutely impossible, we just need to have tools like Apple linker and startup files to create proper binaries.

There are some workarounds available for compiling and running Mac sw (incl iOS). One possible option is macincloud: https://www.macincloud.com/