diff --git a/utils/HelpGen/src/scriptbinder.h b/utils/HelpGen/src/scriptbinder.h
index 17c52ffcb5..3d638e4290 100644
--- a/utils/HelpGen/src/scriptbinder.h
+++ b/utils/HelpGen/src/scriptbinder.h
@@ -327,7 +327,7 @@ protected:
 	// return FALSE, if something has gone wrong and
 	// document cannot be saved now
 
-	virtual bool OnSaveDocument( ScriptStream& stm ) 
+	virtual bool OnSaveDocument( ScriptStream& WXUNUSED(stm) ) 
 		{ return 1; }
 
 	// override this method to provide reference to
diff --git a/utils/HelpGen/src/srcparser.h b/utils/HelpGen/src/srcparser.h
index 846294f3dd..a6ee4668d3 100644
--- a/utils/HelpGen/src/srcparser.h
+++ b/utils/HelpGen/src/srcparser.h
@@ -202,25 +202,25 @@ public:
     //        multiple times by variouse visitors (there can
     //        be more the one visitor visiting content at a time)
 
-    virtual void VisitFile( spFile& fl ) {}
+    virtual void VisitFile( spFile& WXUNUSED(fl) ) {}
 
-    virtual void VisitNameSpace( spNameSpace& ns ) {}
+    virtual void VisitNameSpace( spNameSpace& WXUNUSED(ns) ) {}
 
-    virtual void VisitClass( spClass& cl ) {}
+    virtual void VisitClass( spClass& WXUNUSED(cl) ) {}
 
-    virtual void VisitEnumeration( spEnumeration& en ) {}
+    virtual void VisitEnumeration( spEnumeration& WXUNUSED(en) ) {}
 
-    virtual void VisitTypeDef( spTypeDef& td ) {}
+    virtual void VisitTypeDef( spTypeDef& WXUNUSED(td) ) {}
 
-    virtual void VisitPreprocessorLine( spPreprocessorLine& pd ) {}
+    virtual void VisitPreprocessorLine( spPreprocessorLine& WXUNUSED(pd) ) {}
 
-    virtual void VisitAttribute( spAttribute& attr ) {}
+    virtual void VisitAttribute( spAttribute& WXUNUSED(attr) ) {}
 
-    virtual void VisitOperation( spOperation& op ) {}
+    virtual void VisitOperation( spOperation& WXUNUSED(op) ) {}
 
-    virtual void VisitParameter( spParameter& param ) {}
+    virtual void VisitParameter( spParameter& WXUNUSED(param) ) {}
 
-    virtual void VisitCustomContext( spContext& ctx ) {}
+    virtual void VisitCustomContext( spContext& WXUNUSED(ctx) ) {}
 };
 
 // stores one section of comments,
diff --git a/utils/HelpGen/src/wxstlvec.h b/utils/HelpGen/src/wxstlvec.h
index c7b2daf27c..24ecb3adbe 100644
--- a/utils/HelpGen/src/wxstlvec.h
+++ b/utils/HelpGen/src/wxstlvec.h
@@ -186,7 +186,7 @@ protected:\
 \
 protected:\
 \
-	inline void quick_sort(int low, int hi) \
+	inline void quick_sort(int WXUNUSED(low), int WXUNUSED(hi)) \
 	{\
 	}\
 \
@@ -337,7 +337,7 @@ public:\
 \
 	inline const_reference back() const { return (*(mpEnd-1)); }\
 \
-	inline void reserve(size_type n) {}\
+	inline void reserve(size_type WXUNUSED(n)) {}\
 \
 	inline void push_back(const value_type& x)\
 	{\
@@ -558,11 +558,11 @@ protected:\
 \
 protected:\
 \
-	inline void quick_sort(int low, int hi) \
+	inline void quick_sort(int WXUNUSED(low), int WXUNUSED(hi)) \
 	{\
 	}\
 \
-	inline void DestructRange( iterator first, iterator last )\
+	inline void DestructRange( iterator WXUNUSED(first), iterator WXUNUSED(last))\
 	{\
 	}\
 \
@@ -702,7 +702,7 @@ public:\
 \
 	inline const_reference back() const { return (*(mpEnd-1)); }\
 \
-	inline void reserve(size_type n) {}\
+	inline void reserve(size_type WXUNUSED(n)) {}\
 \
 	inline void push_back(const value_type& x)\
 	{\