Expose ptrace on mac

Author: Susurrus

src/sys/mod.rs

@@ -50,7 +50,7 @@ pub mod uio;
 
 pub mod time;
 
-#[cfg(any(target_os = "linux", target_os = "android"))]
+#[cfg(any(target_os = "android", target_os = "linux", target_os = "ios", target_os = "macos"))]
 pub mod ptrace;
 
 pub mod select;