Better error message on STL export failure

git-svn-id: http://svn.clifford.at/openscad/trunk@181 b57f626f-c46c-0410-a088-ec61d464b74c

1 files changed, 3 insertions, 2 deletions

diff --git a/export.cc b/export.cc
index bf0fb18..4d5e7da 100644
--- a/export.cc
+++ b/export.cc
@@ -38,9 +38,10 @@ void export_stl(CGAL_Nef_polyhedron *root_N, QString filename, QProgressDialog *
 	typedef CGAL_Polyhedron::Facet_const_iterator                   FCI;
 	typedef CGAL_Polyhedron::Halfedge_around_facet_const_circulator HFCC;
 
-	FILE *f = fopen(filename.toAscii().data(), "w");
+	FILE *f = fopen(filename.toUtf8().data(), "w");
 	if (!f) {
-		PRINT("Can't open STL file for STL export.");
+		PRINTA("Can't open STL file \"%1\" for STL export: %2", 
+					 filename, QString(strerror(errno)));
 		MainWindow::current_win = NULL;
 		return;
 	}