chore: use cfg_aliases for mobile (#2033)

easytier/build.rs

@@ -1,9 +1,9 @@
+use cfg_aliases::cfg_aliases;
+use prost_wkt_build::{FileDescriptorSet, Message as _};
 #[cfg(target_os = "windows")]
 use std::io::Cursor;
 use std::{env, path::PathBuf};
 
-use prost_wkt_build::{FileDescriptorSet, Message as _};
-
 #[cfg(target_os = "windows")]
 struct WindowsBuild {}
 
@@ -130,6 +130,17 @@ fn check_locale() {
 }
 
 fn main() -> Result<(), Box<dyn std::error::Error>> {
+    cfg_aliases! {
+        mobile: {
+            any(
+                target_os = "android",
+                target_os = "ios",
+                all(target_os = "macos", feature = "macos-ne"),
+                target_env = "ohos"
+            )
+        }
+    }
+
     // enable thunk-rs when target os is windows and arch is x86_64 or i686
     #[cfg(target_os = "windows")]
     if !std::env::var("TARGET")