Fix build.rs to run windres on all platforms

build.rs

@@ -1,27 +1,24 @@
 fn main() {
-    // Embed icon on Windows (via windres for cross-compilation support)
-    #[cfg(target_os = "windows")]
-    {
-        let out_dir = std::env::var("OUT_DIR").unwrap();
-        let rc_path = "resources/app.rc";
-        let res_path = format!("{}/app.res", out_dir);
-        let status = std::process::Command::new("x86_64-w64-mingw32-windres")
-            .args([rc_path, "-O", "coff", "-o", &res_path])
-            .status();
-        if let Ok(s) = status {
-            if s.success() {
-                println!("cargo:rustc-link-arg={}", res_path);
-                return;
-            }
-        }
-        // Fallback: try plain windres
-        let status = std::process::Command::new("windres")
-            .args([rc_path, "-O", "coff", "-o", &res_path])
-            .status();
-        if let Ok(s) = status {
-            if s.success() {
-                println!("cargo:rustc-link-arg={}", res_path);
+    let out_dir = std::env::var("OUT_DIR").unwrap();
+    let rc_path = "resources/app.rc";
+    let res_path = format!("{}/app.res", out_dir);
+
+    // Try cross-compile windres first, then native windres
+    let compiled = || -> bool {
+        for windres in &["x86_64-w64-mingw32-windres", "windres"] {
+            if std::process::Command::new(windres)
+                .args(["-I", ".", rc_path, "-O", "coff", "-o", &res_path])
+                .status()
+                .map(|s| s.success())
+                .unwrap_or(false)
+            {
+                return true;
             }
         }
+        false
+    };
+
+    if compiled() {
+        println!("cargo:rustc-link-arg={}", res_path);
     }
 }