diff --git a/openscad.pro b/openscad.pro
index e16020e8..e40c956a 100644
--- a/openscad.pro
+++ b/openscad.pro
@@ -223,7 +223,7 @@ HEADERS += src/typedefs.h \
            src/rendersettings.h \
            src/colormap.h \
            src/ThrownTogetherRenderer.h \
-           src/CGAL_renderer.h \
+           src/CGAL_OGL_Polyhedron.h \
            src/OGL_helper.h \
            src/QGLView.h \
            src/GLView.h \
diff --git a/src/CGALRenderer.cc b/src/CGALRenderer.cc
index b42dd307..c9b816c5 100644
--- a/src/CGALRenderer.cc
+++ b/src/CGALRenderer.cc
@@ -35,7 +35,7 @@
 #include "printutils.h"
 
 #include "CGALRenderer.h"
-#include "CGAL_renderer.h"
+#include "CGAL_OGL_Polyhedron.h"
 #include "CGAL_Nef_polyhedron.h"
 #include "cgal.h"
 
@@ -61,7 +61,7 @@ CGALRenderer::~CGALRenderer()
 {
 }
 
-shared_ptr<class Polyhedron> CGALRenderer::getPolyhedron() const
+shared_ptr<class CGAL_OGL_Polyhedron> CGALRenderer::getPolyhedron() const
 {
 	if (this->N && !this->polyhedron) buildPolyhedron();
 	return this->polyhedron;
@@ -70,7 +70,7 @@ shared_ptr<class Polyhedron> CGALRenderer::getPolyhedron() const
 void CGALRenderer::buildPolyhedron() const
 {
 	PRINTD("buildPolyhedron");
-	this->polyhedron.reset(new Polyhedron(*this->colorscheme));
+	this->polyhedron.reset(new CGAL_OGL_Polyhedron(*this->colorscheme));
 	CGAL::OGL::Nef3_Converter<CGAL_Nef_polyhedron3>::convert_to_OGLPolyhedron(*this->N->p3, this->polyhedron.get());
 	// CGAL_NEF3_MARKED_FACET_COLOR <- CGAL_FACE_BACK_COLOR
 	// CGAL_NEF3_UNMARKED_FACET_COLOR <- CGAL_FACE_FRONT_COLOR
@@ -124,7 +124,7 @@ void CGALRenderer::draw(bool showfaces, bool showedges) const
 		}
 	}
 	else {
-		shared_ptr<class Polyhedron> polyhedron = getPolyhedron();
+		shared_ptr<class CGAL_OGL_Polyhedron> polyhedron = getPolyhedron();
         if (polyhedron) {
             PRINTD("draw() polyhedron");
             if (showfaces) polyhedron->set_style(SNC_BOUNDARY);
@@ -143,7 +143,7 @@ BoundingBox CGALRenderer::getBoundingBox() const
 		bbox = this->polyset->getBoundingBox();
 	}
 	else {
-		shared_ptr<class Polyhedron> polyhedron = getPolyhedron();
+		shared_ptr<class CGAL_OGL_Polyhedron> polyhedron = getPolyhedron();
 		if (polyhedron) {
 			CGAL::Bbox_3 cgalbbox = polyhedron->bbox();
 			bbox = BoundingBox(
diff --git a/src/CGALRenderer.h b/src/CGALRenderer.h
index 4bb2c673..d3fae77a 100644
--- a/src/CGALRenderer.h
+++ b/src/CGALRenderer.h
@@ -13,10 +13,10 @@ public:
 	virtual BoundingBox getBoundingBox() const;
 
 private:
-	shared_ptr<class Polyhedron> getPolyhedron() const;
+	shared_ptr<class CGAL_OGL_Polyhedron> getPolyhedron() const;
 	void buildPolyhedron() const;
 
-	mutable shared_ptr<class Polyhedron> polyhedron;
+	mutable shared_ptr<class CGAL_OGL_Polyhedron> polyhedron;
 	shared_ptr<const CGAL_Nef_polyhedron> N;
 	shared_ptr<const class PolySet> polyset;
 };
diff --git a/src/CGAL_renderer.h b/src/CGAL_OGL_Polyhedron.h
similarity index 91%
rename from src/CGAL_renderer.h
rename to src/CGAL_OGL_Polyhedron.h
index 433eb7d6..ef056258 100644
--- a/src/CGAL_renderer.h
+++ b/src/CGAL_OGL_Polyhedron.h
@@ -36,7 +36,7 @@
 using CGAL::OGL::SNC_BOUNDARY;
 using CGAL::OGL::SNC_SKELETON;
 
-class Polyhedron : public CGAL::OGL::Polyhedron
+class CGAL_OGL_Polyhedron : public CGAL::OGL::Polyhedron
 {
 public:
 
@@ -50,14 +50,14 @@ public:
 		NUM_COLORS
 	};
 
-	Polyhedron(const ColorScheme &cs) {
-		PRINTD("Polyhedron()");
+	CGAL_OGL_Polyhedron(const ColorScheme &cs) {
+		PRINTD("CGAL_OGL_Polyhedron()");
 		// Set default colors.
 		setColor(CGAL_NEF3_MARKED_VERTEX_COLOR,0xb7,0xe8,0x5c);
 		setColor(CGAL_NEF3_UNMARKED_VERTEX_COLOR,0xff,0xf6,0x7c);
 		// Face and Edge colors are taken from default colorscheme
 		setColorScheme(cs);
-		PRINTD("Polyhedron() end");
+		PRINTD("CGAL_OGL_Polyhedron() end");
 	}
 
 	void draw(bool showedges) const {
@@ -98,12 +98,12 @@ public:
 		return c;
 	}
 
-	void setColor(Polyhedron::RenderColor color_index, const Color4f &c) {
+	void setColor(CGAL_OGL_Polyhedron::RenderColor color_index, const Color4f &c) {
 		PRINTDB("setColor %i %f %f %f",color_index%c[0]%c[1]%c[2]);
 		this->colors[color_index] = CGAL::Color(c[0]*255,c[1]*255,c[2]*255);
 	}
 
-	void setColor(Polyhedron::RenderColor color_index,
+	void setColor(CGAL_OGL_Polyhedron::RenderColor color_index,
 				  unsigned char r, unsigned char g, unsigned char b) {
 		PRINTDB("setColor %i %i %i %i",color_index%r%g%b);
 		this->colors[color_index] = CGAL::Color(r,g,b);
@@ -122,7 +122,7 @@ public:
 private:
 	CGAL::Color colors[NUM_COLORS];
 
-}; // Polyhedron
+}; // CGAL_OGL_Polyhedron
 
 
 
@@ -131,10 +131,10 @@ private:
 
 #include <CGAL/Bbox_3.h>
 
-class Polyhedron
+class CGAL_OGL_Polyhedron
 {
 public:
-	Polyhedron() {}
+	CGAL_OGL_Polyhedron() {}
 	void draw(bool showedges) const {}
 	CGAL::Bbox_3 bbox() const { return CGAL::Bbox_3(-1,-1,-1,1,1,1); }
 };
diff --git a/src/cgalutils.cc b/src/cgalutils.cc
index e7265b9b..5b642c58 100644
--- a/src/cgalutils.cc
+++ b/src/cgalutils.cc
@@ -1084,7 +1084,7 @@ bool tessellate_3d_face_with_holes( std::vector<CGAL_Polygon_3> &polygons, std::
 	}
 
 	size_t numholes = polygons2d.size()-1;
-	PRINTB("seeding %i holes",numholes);
+	PRINTDB("seeding %i holes",numholes);
 	std::list<CDTPoint> list_of_seeds;
 	for (size_t i=1;i<polygons2d.size();i++) {
 		std::vector<CGAL_Point_2> &pgon = polygons2d[i];
@@ -1105,16 +1105,16 @@ bool tessellate_3d_face_with_holes( std::vector<CGAL_Polygon_3> &polygons, std::
 		//PRINTB("seed %s",*li);
 		double x = CGAL::to_double( li->x() );
 		double y = CGAL::to_double( li->y() );
-		PRINTB("seed %f,%f",x%y);
+		PRINTDB("seed %f,%f",x%y);
 	}
-	PRINT("seeding done");
+	PRINTD("seeding done");
 
-	PRINT( "meshing" );
+	PRINTD( "meshing" );
 	CGAL::refine_Delaunay_mesh_2_without_edge_refinement( cdt,
 		list_of_seeds.begin(), list_of_seeds.end(),
 		DummyCriteria<CDT>() );
 
-	PRINT("meshing done");
+	PRINTD("meshing done");
 	// this fails because it calls is_simple and is_simple fails on many
 	// Nef Polyhedron faces
 	//CGAL::Orientation original_orientation =
diff --git a/src/export_png.cc b/src/export_png.cc
index fad2a42f..d9c4b5a4 100644
--- a/src/export_png.cc
+++ b/src/export_png.cc
@@ -8,7 +8,6 @@
 
 #ifdef ENABLE_CGAL
 #include "CGALRenderer.h"
-#include "CGAL_renderer.h"
 #include "cgal.h"
 #include "cgalutils.h"
 #include "CGAL_Nef_polyhedron.h"