ptrude/: proper command-line handling; open -d for debug mode

ptrude/ptrude.h

@@ -0,0 +1,18 @@
+/*
+ * ptrude.h - Extrusion of a 2D path along a perpendicular 2D path
+ *
+ * Written 2011 by Werner Almesberger
+ * Copyright 2011 by Werner Almesberger
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef PTRUDE_H
+#define	PTRUDE_H
+
+extern int debug;
+
+#endif /* !PTRUDE_H */