Add basic support for Android

examples/fullscreen.rs

@@ -1,9 +1,18 @@
+#![feature(phase)]
+
+#[cfg(target_os = "android")]
+#[phase(plugin, link)]
+extern crate android_glue;
+
 extern crate gl;
 extern crate gl_init;
 extern crate libc;
 
 use std::io::stdio::stdin;
 
+#[cfg(target_os = "android")]
+android_start!(main)
+
 fn main() {
     // enumerating monitors
     let monitor = {

examples/multiwindow.rs

@@ -1,7 +1,16 @@
+#![feature(phase)]
+
+#[cfg(target_os = "android")]
+#[phase(plugin, link)]
+extern crate android_glue;
+
 extern crate gl;
 extern crate gl_init;
 extern crate libc;
 
+#[cfg(target_os = "android")]
+android_start!(main)
+
 fn main() {
     let window1 = gl_init::Window::new().unwrap();
     let window2 = gl_init::Window::new().unwrap();

examples/window.rs

@@ -1,7 +1,16 @@
+#![feature(phase)]
+
+#[cfg(target_os = "android")]
+#[phase(plugin, link)]
+extern crate android_glue;
+
 extern crate gl;
 extern crate gl_init;
 extern crate libc;
 
+#[cfg(target_os = "android")]
+android_start!(main)
+
 fn main() {
     let window = gl_init::Window::new().unwrap();