Add a basic entry point to allow the nexe to link

Makefile

@@ -7,12 +7,13 @@ include $(NACL_SDK_ROOT)/tools/common.mk
 # Include Moonlight-Common-C makefile
 include common-c.mk
 
-LIBS = ppapi pthread
+LIBS = ppapi ppapi_cpp pthread nacl_io
 
 CFLAGS = -Wall -Wno-missing-braces
 SOURCES = \
     $(COMMON_C_SOURCE)       \
     libchelper.c             \
+    main.cpp                 \
 
 # Build rules generated by macros from common.mk:
 

main.cpp

@@ -0,0 +1,30 @@
+#include "ppapi/cpp/instance.h"
+#include "ppapi/cpp/module.h"
+#include "ppapi/cpp/var.h"
+
+#include "nacl_io/nacl_io.h"
+
+class MoonlightInstance : public pp::Instance {
+    public:
+        explicit MoonlightInstance(PP_Instance instance) : pp::Instance(instance) {}
+        virtual ~MoonlightInstance() {}
+};
+
+class MoonlightModule : public pp::Module {
+    public:
+        MoonlightModule() : pp::Module() {}
+        virtual ~MoonlightModule() {}
+
+        virtual pp::Instance* CreateInstance(PP_Instance instance) {
+            return new MoonlightInstance(instance);
+        }
+};
+
+namespace pp {
+Module* CreateModule() {
+    // Initialize nacl_io before entering moonlight-common-c for BSD sockets
+    nacl_io_init();
+    
+    return new MoonlightModule();
+}
+}  // namespace pp