Refactored OpenGL embedder that works on Android, Mac or Linux.

runtime/embedders/openglui/android/support_android.cc

Index: runtime/embedders/openglui/android/support_android.cc
===================================================================
--- runtime/embedders/openglui/android/support_android.cc	(revision 0)
+++ runtime/embedders/openglui/android/support_android.cc	(revision 0)
@@ -0,0 +1,15 @@
+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+// Provide atexit, not part of Android libc or linker.
+
+extern "C" int atexit(void (*function)(void)) {
+  // Return error code.
+  return 1;
+}
+
+// Provide __dso_handle, not part of Android libc or linker.
+
+__attribute__((weak)) void *__dso_handle;
+