@@ -9,7 +9,7 @@ static PyObject *ue_PySWidget_str(ue_PySWidget *self)
 		TCHAR_TO_UTF8(*self->Widget->GetTypeAsString()), &self->Widget.Get(), self->Widget.GetSharedReferenceCount(), self->ob_base.ob_refcnt);
 #else
 	return PyUnicode_FromFormat("<unreal_engine.%s '%p' (slate ref count: %d)>",
-		TCHAR_TO_UTF8(*self->Widget->GetTypeAsString()), &self->s_widget.Get(), self->Widget.GetSharedReferenceCount());
+		TCHAR_TO_UTF8(*self->Widget->GetTypeAsString()), &self->Widget.Get(), self->Widget.GetSharedReferenceCount());
 #endif
 }
 
 
@@ -17,6 +17,10 @@
 #include <Python.h>
 #include <structmember.h>
 #else
+#include <include/pyconfig.h>
+#ifndef SIZEOF_PID_T
+#define SIZEOF_PID_T 4
+#endif
 #include <include/Python.h>
 #include <include/structmember.h>
 #endif
 
@@ -80,7 +80,8 @@ public UnrealEnginePython(TargetInfo Target)
     {
 
         PCHUsage = ModuleRules.PCHUsageMode.UseExplicitOrSharedPCHs;
-        bFasterWithoutUnity = true;
+        string enableUnityBuild = System.Environment.GetEnvironmentVariable("UEP_ENABLE_UNITY_BUILD");
+        bFasterWithoutUnity = string.IsNullOrEmpty(enableUnityBuild);
 
         PublicIncludePaths.AddRange(
             new string[] {
Original file line number	Diff line number	Diff line change
`@@ -9,7 +9,7 @@ static PyObject ue_PySWidget_str(ue_PySWidget self)`
`9`	`9`	`TCHAR_TO_UTF8(*self->Widget->GetTypeAsString()), &self->Widget.Get(), self->Widget.GetSharedReferenceCount(), self->ob_base.ob_refcnt);`
`10`	`10`	`#else`
`11`	`11`	`return PyUnicode_FromFormat("<unreal_engine.%s '%p' (slate ref count: %d)>",`
`12`		`- TCHAR_TO_UTF8(*self->Widget->GetTypeAsString()), &self->s_widget.Get(), self->Widget.GetSharedReferenceCount());`
	`12`	`+ TCHAR_TO_UTF8(*self->Widget->GetTypeAsString()), &self->Widget.Get(), self->Widget.GetSharedReferenceCount());`
`13`	`13`	`#endif`
`14`	`14`	`}`
`15`	`15`
Original file line number	Diff line number	Diff line change
`@@ -80,7 +80,8 @@ public UnrealEnginePython(TargetInfo Target)`
`80`	`80`	`{`
`81`	`81`
`82`	`82`	`PCHUsage = ModuleRules.PCHUsageMode.UseExplicitOrSharedPCHs;`
`83`		`- bFasterWithoutUnity = true;`
	`83`	`+ string enableUnityBuild = System.Environment.GetEnvironmentVariable("UEP_ENABLE_UNITY_BUILD");`
	`84`	`+ bFasterWithoutUnity = string.IsNullOrEmpty(enableUnityBuild);`
`84`	`85`
`85`	`86`	`PublicIncludePaths.AddRange(`
`86`	`87`	`new string[] {`