Update library/std/src/sys/pal/unix/weak.rs

Co-authored-by: Jubilee <46493976+workingjubilee@users.noreply.github.com>

Author: simlay

library/std/src/sys/pal/unix/weak.rs

@@ -49,13 +49,7 @@ pub(crate) macro weak {
 }
 
 // On non-ELF targets, use the dlsym approximation of weak linkage.
-#[cfg(any(
-    target_os = "macos",
-    target_os = "ios",
-    target_os = "tvos",
-    target_os = "watchos",
-    target_os = "visionos",
-))]
+#[cfg(target_vendor = "apple")]
 pub(crate) use self::dlsym as weak;
 
 pub(crate) struct ExternWeak<F: Copy> {