Isolated emscripten in new lib

lib/emscripten/emtests/test_static_variable.c

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2016 The Emscripten Authors.  All rights reserved.
+ * Emscripten is available under two separate licenses, the MIT license and the
+ * University of Illinois/NCSA Open Source License.  Both these licenses can be
+ * found in the LICENSE file.
+ */
+
+#include <stdio.h>
+
+struct DATA {
+  int value;
+
+  DATA() { value = 0; }
+};
+
+DATA& GetData() {
+  static DATA data;
+
+  return data;
+}
+
+int main() {
+  GetData().value = 10;
+  printf("value:%i", GetData().value);
+}