fix for MacOS linking failure

Author: mortont

native/ortex/.cargo/config.toml

@@ -8,9 +8,10 @@ rpath=true
 rustflags = [
     "-C", "link-arg=-undefined",
     "-C", "link-arg=dynamic_lookup",
+    "-C", "link-arg=-fapple-link-rtlib",
     "-C", "link-args=-Wl,-rpath,@loader_path",
 ]
 [target.x86_64-unknown-linux-gnu]
 rustflags = [ "-Clink-args=-Wl,-rpath,$ORIGIN" ]
 [target.aarch64-unknown-linux-gnu]
-rustflags = [ "-Clink-args=-Wl,-rpath,$ORIGIN" ]
+rustflags = [ "-Clink-args=-Wl,-rpath,$ORIGIN" ]