Revert of [NaCl SDK] Remove support for bionic toolchain

native_client_sdk/src/libraries/ppapi_stub/main.c

Index: native_client_sdk/src/libraries/ppapi_stub/main.c
diff --git a/native_client_sdk/src/libraries/ppapi_stub/main.c b/native_client_sdk/src/libraries/ppapi_stub/main.c
new file mode 100644
index 0000000000000000000000000000000000000000..c1428bcb2b83b276d869630bd3d0d12d7ebe640d
--- /dev/null
+++ b/native_client_sdk/src/libraries/ppapi_stub/main.c
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2014 The Chromium Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/*
+ * An application that doesn't define its own main but links in -lppapi
+ * gets this one.  A plugin may instead have its own main that calls
+ * PpapiPluginMain (or PpapiPluginStart) after doing some other setup.
+ */
+
+int PpapiPluginMain();
+
+int main(void) {
+  return PpapiPluginMain();
+}