Use target_pointer_width attribute

Author: vladimir-ea

src/unix/bsd/apple/mod.rs

@@ -1172,9 +1172,9 @@ s_no_extra_traits! {
         pub ifi_noproto: u64,
         pub ifi_recvtiming: u32,
         pub ifi_xmittiming: u32,
-        #[cfg(any(target_arch = "arm", target_arch = "x86", target_pointer_width = "32"))]
+        #[cfg(target_pointer_width = "32")]
         pub ifi_lastchange: ::timeval,
-        #[cfg(not(any(target_arch = "arm", target_arch = "x86", target_pointer_width = "32")))]
+        #[cfg(not(target_pointer_width = "32"))]
         pub ifi_lastchange: timeval32,
     }
 
@@ -5522,10 +5522,10 @@ extern "C" {
 }
 
 cfg_if! {
-    if #[cfg(any(target_arch = "arm", target_arch = "x86", target_pointer_width = "32"))] {
+    if #[cfg(target_pointer_width = "32")] {
         mod b32;
         pub use self::b32::*;
-    } else if #[cfg(any(target_arch = "x86_64", target_arch = "aarch64"))] {
+    } else if #[cfg(target_pointer_width = "64")] {
         mod b64;
         pub use self::b64::*;
     } else {