diff --git a/Minecraft.Client/Windows64/4JLibs/inc/4J_Render.h b/Minecraft.Client/Windows64/4JLibs/inc/4J_Render.h
index 737caa98b..64a2c76e5 100644
--- a/Minecraft.Client/Windows64/4JLibs/inc/4J_Render.h
+++ b/Minecraft.Client/Windows64/4JLibs/inc/4J_Render.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <cstdint>
+
 class ImageFileBuffer 
 {
 public:
@@ -246,6 +248,7 @@ const int CLEAR_COLOUR_FLAG = 2;
 const int GL_DEPTH_BUFFER_BIT = CLEAR_DEPTH_FLAG;
 const int GL_COLOR_BUFFER_BIT = CLEAR_COLOUR_FLAG;
 
+#ifndef __linux__
 const int GL_SRC_ALPHA = D3D11_BLEND_SRC_ALPHA;
 const int GL_ONE_MINUS_SRC_ALPHA = D3D11_BLEND_INV_SRC_ALPHA;
 const int GL_ONE = D3D11_BLEND_ONE;
@@ -263,6 +266,7 @@ const int GL_EQUAL = D3D11_COMPARISON_EQUAL;
 const int GL_LEQUAL = D3D11_COMPARISON_LESS_EQUAL;
 const int GL_GEQUAL = D3D11_COMPARISON_GREATER_EQUAL;
 const int GL_ALWAYS = D3D11_COMPARISON_ALWAYS;
+#endif // __linux__
 
 const int GL_TEXTURE_MIN_FILTER = 1;
 const int GL_TEXTURE_MAG_FILTER = 2;
diff --git a/Minecraft.World/stdafx.h b/Minecraft.World/stdafx.h
index 165e012dc..9f8657db1 100644
--- a/Minecraft.World/stdafx.h
+++ b/Minecraft.World/stdafx.h
@@ -29,11 +29,37 @@ typedef unsigned int UINT;
 #define WINAPI
 typedef void* HANDLE;
 typedef int INT;
+typedef char CHAR;
+typedef void* PVOID;
 // From PSXSense
 #define XUSER_MAX_COUNT                 4
 #define XUSER_INDEX_ANY                 0x000000FF
+typedef unsigned long* ULONG_PTR;
+typedef long LONG;
+typedef void VOID;
 
-#define CRITICAL_SECTION
+
+typedef struct _RTL_CRITICAL_SECTION {
+    // 	//
+    // 	//  The following field is used for blocking when there is contention for
+    // 	//  the resource
+    // 	//
+    //
+    	union {
+    		ULONG_PTR RawEvent[4];
+    	} Synchronization;
+    //
+    // 	//
+    // 	//  The following three fields control entering and exiting the critical
+    // 	//  section for the resource
+    // 	//
+    //
+    	LONG LockCount;
+    	LONG RecursionCount;
+    	HANDLE OwningThread;
+} RTL_CRITICAL_SECTION, *PRTL_CRITICAL_SECTION;
+
+typedef RTL_CRITICAL_SECTION CRITICAL_SECTION;
 #endif
 
 #ifdef _WINDOWS64