Symbol not found on macOS

Ecosystem
1

I am facing a linking issue on macOS. Symbol s1 works as expected, but s2 is not found, although it is in the library and can be found in a test C program.

let cf_handle = Dl.dlopen ~flags:[RTLD_LAZY]
  ~filename:"/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation"

let () =
  let s1 = Dl.dlsym ~handle:cf_handle ~symbol:"CFGetTypeID" in

  let s2 = Dl.dlsym ~handle:cf_handle ~symbol:"CFByteOrderGetCurrent" in
  (* Results in Dl.DL_error("dlsym(0xfff13356d238, CFByteOrderGetCurrent): symbol not found") *)

  Printf.eprintf "s1: %i\n" (Nativeint.to_int s1);
  Printf.eprintf "s2: %i\n" (Nativeint.to_int s2)

Any ideas why that is and how to resolve it?

2

Turns out the issue is not related to OCaml, nor is it macOS specific. The symbol that fails is an inline function, so it cannot be accessed with a dlsym call.