support android build

alert.rc

@@ -19,11 +19,15 @@ extern mod cocoa;
 pub use linux::Alert;
 #[cfg(target_os="macos")]
 pub use macos::Alert;
+#[cfg(target_os="android")]
+pub use android::Alert;
 
 #[cfg(target_os="linux")]
 mod linux;
 #[cfg(target_os="macos")]
 mod macos;
+#[cfg(target_os="android")]
+mod android;
 
 #[cfg(testalert)]
 mod test;

android.rs

@@ -0,0 +1,34 @@
+// Copyright 2013 The Servo Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use AlertMethods;
+
+/// An alert.
+pub struct Alert;
+
+impl AlertMethods for Alert {
+    fn new(_: &str) -> Alert {
+        // TODO
+        Alert
+    }
+
+    pub fn add_prompt(&mut self) {
+        // TODO
+    }
+
+    pub fn run(&self) {
+        // TODO
+    }
+
+    pub fn prompt_value(&self) -> ~str {
+        // TODO
+        ~""
+    }
+}
+