--- source/vclass.h	2007/04/17 21:35:04	2156
+++ source/vclass.h	2007/05/07 16:48:35	2237
@@ -375,6 +375,7 @@
 	VClass*			ParentClass;
 
 	vint32			ClassSize;
+	vint32			ClassUnalignedSize;
 	vuint32			ClassFlags;
 	VMethod**		ClassVTable;
 	void			(*ClassConstructor)();
--- source/vclass.cpp	2007/04/27 18:01:49	2191
+++ source/vclass.cpp	2007/05/18 16:27:42	2241
@@ -27,6 +27,20 @@
 #include "progdefs.h"
 #include "network.h"
 
+class DummyClass1 : public VVirtualObjectBase
+{
+public:
+	void*		Pointer;
+	vuint8		Byte1;
+	virtual void Dummy() = 0;
+};
+
+class DummyClass2 : public DummyClass1
+{
+public:
+	vuint8		Byte2;
+};
+
 bool					VMemberBase::GObjInitialised;
 VClass*					VMemberBase::GClasses;
 TArray<VMemberBase*>	VMemberBase::GMembers;
@@ -2353,6 +2367,7 @@
 , LinkNext(0)
 , ParentClass(0)
 , ClassSize(0)
+, ClassUnalignedSize(0)
 , ClassFlags(0)
 , ClassVTable(0)
 , ClassConstructor(0)
@@ -2388,6 +2403,7 @@
 , LinkNext(0)
 , ParentClass(AParent)
 , ClassSize(ASize)
+, ClassUnalignedSize(ASize)
 , ClassFlags(AClassFlags)
 , ClassVTable(0)
 , ClassConstructor(ACtor)
@@ -2477,6 +2493,8 @@
 		delete[] Defaults;
 		Defaults = NULL;
 	}
+	StatesLookup.Clear();
+	RepInfos.Clear();
 	unguard;
 }
 
@@ -2849,10 +2867,7 @@
 		return;
 	}
 
-	int PrevSize = ClassSize;
-	int size = ParentClass ? ParentClass->ClassSize : 0;
 	int numMethods = ParentClass ? ParentClass->ClassNumMethods : 0;
-	VField* PrevField = NULL;
 	for (int i = 0; i < GMembers.Num(); i++)
 	{
 		if (GMembers[i]->MemberType != MEMBER_Method ||
@@ -2877,6 +2892,21 @@
 		}
 		M->VTableIndex = MOfs;
 	}
+
+	VField* PrevField = NULL;
+	int PrevSize = ClassSize;
+	int size = 0;
+	if (ParentClass)
+	{
+		//	GCC has a strange behavior of starting to add fields in subclasses
+		// in a class that has virtual methods on unaligned parent size offset.
+		// In other cases and in other compilers it starts on aligned parent
+		// class size offset.
+		if (sizeof(DummyClass1) == sizeof(DummyClass2))
+			size = ParentClass->ClassUnalignedSize;
+		else
+			size = ParentClass->ClassSize;
+	}
 	for (VField* fi = Fields; fi; fi = fi->Next)
 	{
 		if (fi->Type.Type == ev_bool && PrevField &&
@@ -2904,6 +2934,7 @@
 		}
 		PrevField = fi;
 	}
+	ClassUnalignedSize = size;
 	size = (size + sizeof(void*) - 1) & ~(sizeof(void*) - 1);
 	ClassSize = size;
 	ClassNumMethods = numMethods;