From f8ebf1c963cbd4feb3a188aa41801de0ee3932f1 Mon Sep 17 00:00:00 2001
From: don bright <hugh.m.bright@gmail.com>
Date: Fri, 1 Feb 2013 02:24:02 +0100
Subject: give clear message that OpenCSG png export is not implemented yet


diff --git a/src/export_png.cc b/src/export_png.cc
index 54c3390..2d6a4a2 100644
--- a/src/export_png.cc
+++ b/src/export_png.cc
@@ -49,7 +49,7 @@ void export_png_with_cgal(CGAL_Nef_polyhedron *root_N, std::ostream &output)
 void export_png_with_opencsg(CGAL_Nef_polyhedron *root_N, std::ostream &output)
 {
 	CsgInfo csgInfo;
-	output << "not implemented: solid OpenSCAD_Model opencsg png export\n";
+	PRINT("not implemented: solid OpenSCAD_Model opencsg png export\n");
 }
 
 
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