[Fix] (Init): Refactor MG_Initialize/MG_Destroy for multi-platform compatibility.

MG/Includes.h

@@ -113,6 +113,10 @@
 
 #include "MG_Include/UncertainBool.hpp"
 
+#ifdef _WIN32
+#include <Windows.h>
+#endif
+
 #ifndef _WIN32
 #include <dlfcn.h>
 #include <unistd.h>

MG/Init.cpp

@@ -4,14 +4,43 @@
 
 #include "Includes.h"
 
-__attribute__((constructor)) void MG_Initialize() {
+void MG_Initialize() {
     MG_Util::Debug::LogInit();
     MG_Util::Debug::LogI("MobileGL Initializing...");
     MG_State::Init();
     MG_GL::BackendLoader::Init();
 }
 
-__attribute__((destructor)) void MG_Destroy() {
+void MG_Destroy() {
     MG_Util::Debug::LogI("MobileGL Exiting...");
     MG_State::Destroy();
-}
+}
+
+#if defined(__linux__) || defined(__APPLE__)
+__attribute__((constructor)) static void AutoInit() {
+    MG_Initialize();
+}
+
+__attribute__((destructor)) static void AutoDestroy() {
+    MG_Destroy();
+}
+#endif
+
+#ifdef _WIN32
+BOOL WINAPI DllMain(HMODULE hModule,
+                      DWORD  ul_reason_for_call,
+                      LPVOID lpReserved)
+{
+    switch (ul_reason_for_call)
+    {
+    case DLL_PROCESS_ATTACH:
+        MG_Initialize();
+        break;
+
+    case DLL_PROCESS_DETACH:
+        MG_Destroy();
+        break;
+    }
+    return TRUE;
+}
+#endif