diff -ruN /usr/ports/cad/openvsp/Makefile cad/openvsp/Makefile
--- /usr/ports/cad/openvsp/Makefile	2016-08-25 18:54:32.000000000 +0200
+++ cad/openvsp/Makefile	2016-09-06 16:19:34.612849000 +0200
@@ -2,7 +2,7 @@
 # $FreeBSD: head/cad/openvsp/Makefile 420862 2016-08-25 16:54:32Z pawel $
 
 PORTNAME=	openvsp
-PORTVERSION=	3.9.0
+PORTVERSION=	3.9.1
 DISTVERSIONPREFIX=	${GH_PROJECT}_
 CATEGORIES=	cad
 MASTER_SITES=	GH
diff -ruN /usr/ports/cad/openvsp/distinfo cad/openvsp/distinfo
--- /usr/ports/cad/openvsp/distinfo	2016-08-25 18:54:32.000000000 +0200
+++ cad/openvsp/distinfo	2016-09-06 16:19:34.612870000 +0200
@@ -1,3 +1,3 @@
-TIMESTAMP = 1472060174
-SHA256 (OpenVSP-OpenVSP-OpenVSP_3.9.0_GH0.tar.gz) = 582efa843ecd46543950a8faac9c4c1274f0d897d31eef0bef887795d91142d3
-SIZE (OpenVSP-OpenVSP-OpenVSP_3.9.0_GH0.tar.gz) = 32750881
+TIMESTAMP = 1473160974
+SHA256 (OpenVSP-OpenVSP-OpenVSP_3.9.1_GH0.tar.gz) = 3c9607a4f1574a6a2c85acc1f3c5e20e392f1ad7f9e8fbebd3cfd548a97a65fa
+SIZE (OpenVSP-OpenVSP-OpenVSP_3.9.1_GH0.tar.gz) = 32752113
diff -ruN /usr/ports/cad/openvsp/patch-src_vsp__aero_viewer_ContourLevel.fl cad/openvsp/patch-src_vsp__aero_viewer_ContourLevel.fl
--- /usr/ports/cad/openvsp/patch-src_vsp__aero_viewer_ContourLevel.fl	2016-08-25 18:54:32.000000000 +0200
+++ cad/openvsp/patch-src_vsp__aero_viewer_ContourLevel.fl	1970-01-01 01:00:00.000000000 +0100
@@ -1,11 +0,0 @@
---- src/vsp_aero/viewer/ContourLevel.fl.orig	2016-08-21 15:22:39 UTC
-+++ src/vsp_aero/viewer/ContourLevel.fl
-@@ -12,7 +12,7 @@ class ContourLevelUserInterface {open
-     Fl_Window MainWindow {
-       label {Set Contour Levels} open
-       xywh {603 165 297 144} align 129
--      code0 {\#include "ContourLevel.H"}
-+      code0 {\#include "ContourLevel.h"}
-       code1 {\#include "glviewer.H"} visible
-     } {
-       Fl_Button Reset {
diff -ruN /usr/ports/cad/openvsp/patch-src_vsp__aero_viewer_CuttingPlane.fl cad/openvsp/patch-src_vsp__aero_viewer_CuttingPlane.fl
--- /usr/ports/cad/openvsp/patch-src_vsp__aero_viewer_CuttingPlane.fl	2016-08-25 18:54:32.000000000 +0200
+++ cad/openvsp/patch-src_vsp__aero_viewer_CuttingPlane.fl	1970-01-01 01:00:00.000000000 +0100
@@ -1,11 +0,0 @@
---- src/vsp_aero/viewer/CuttingPlane.fl.orig	2016-08-21 15:22:39 UTC
-+++ src/vsp_aero/viewer/CuttingPlane.fl
-@@ -9,7 +9,7 @@ class CuttingPlaneUserInterface {open
-     Fl_Window MainWindow {
-       label {Cutting Plane} open
-       xywh {525 164 297 106} type Double align 129
--      code0 {\#include "ContourLevel.H"}
-+      code0 {\#include "ContourLevel.h"}
-       code1 {\#include "glviewer.H"} visible
-     } {
-       Fl_Value_Input CuttingPlaneValue {
diff -ruN /usr/ports/cad/openvsp/patch-src_vsp__aero_viewer_glviewer.H cad/openvsp/patch-src_vsp__aero_viewer_glviewer.H
--- /usr/ports/cad/openvsp/patch-src_vsp__aero_viewer_glviewer.H	2016-08-25 18:54:32.000000000 +0200
+++ cad/openvsp/patch-src_vsp__aero_viewer_glviewer.H	1970-01-01 01:00:00.000000000 +0100
@@ -1,11 +0,0 @@
---- src/vsp_aero/viewer/glviewer.H.orig	2016-08-21 15:22:39 UTC
-+++ src/vsp_aero/viewer/glviewer.H
-@@ -36,7 +36,7 @@
- #include "utils.H"
- #include "glf.H"
- #include "binaryio.H"
--#include "viewerUI.H"
-+#include "viewerUI.h"
- //#include "tiffio.h"
- #include "TagList.H"
- #include "TagListGroup.H"
diff -ruN /usr/ports/cad/openvsp/patch-src_vsp__aero_viewer_viewerUI.fl cad/openvsp/patch-src_vsp__aero_viewer_viewerUI.fl
--- /usr/ports/cad/openvsp/patch-src_vsp__aero_viewer_viewerUI.fl	2016-08-25 18:54:32.000000000 +0200
+++ cad/openvsp/patch-src_vsp__aero_viewer_viewerUI.fl	1970-01-01 01:00:00.000000000 +0100
@@ -1,35 +0,0 @@
---- src/vsp_aero/viewer/viewerUI.fl.orig	2016-08-21 15:22:39 UTC
-+++ src/vsp_aero/viewer/viewerUI.fl
-@@ -324,28 +324,28 @@ glviewer->redraw();}
- CL = new ContourLevelUserInterface;
- CL->show(glviewer);}
-           xywh {10 10 100 20} divider
--          code0 {\#include "ContourLevel.H"}
-+          code0 {\#include "ContourLevel.h"}
-         }
-         MenuItem OptionsMenuUseSmoothFunctionShading {
-           label {Use Smooth Function Shading}
-           callback {glviewer->DrawSmoothFunctionsWasPicked();
- glviewer->redraw();}
-           xywh {40 40 100 20} type Toggle divider
--          code0 {\#include "ContourLevel.H"}
-+          code0 {\#include "ContourLevel.h"}
-         }
-         MenuItem OptionsMenuUseFlatShading {
-           label {Use Flat Shading}
-           callback {glviewer->DrawFlatShadedWasPicked();
- glviewer->redraw();}
-           xywh {40 40 100 20} type Toggle divider
--          code0 {\#include "ContourLevel.H"}
-+          code0 {\#include "ContourLevel.h"}
-         }
-         MenuItem OptionsMenuDrawWakesToInfinity {
-           label {Draw Wakes To Infinity}
-           callback {glviewer->DrawWakesToInfinityWasPicked();
- glviewer->redraw();}
-           xywh {50 50 100 20} type Toggle divider
--          code0 {\#include "ContourLevel.H"}
-+          code0 {\#include "ContourLevel.h"}
-         }
-       }
-       Fl_Button KeyboardControlInfoButton {
diff -ruN /usr/ports/cad/openvsp/patch-src_vsp__aero_viewer_vspaero__viewer.C cad/openvsp/patch-src_vsp__aero_viewer_vspaero__viewer.C
--- /usr/ports/cad/openvsp/patch-src_vsp__aero_viewer_vspaero__viewer.C	2016-08-25 18:54:32.000000000 +0200
+++ cad/openvsp/patch-src_vsp__aero_viewer_vspaero__viewer.C	1970-01-01 01:00:00.000000000 +0100
@@ -1,11 +0,0 @@
---- src/vsp_aero/viewer/vspaero_viewer.C.orig	2016-08-24 17:53:16 UTC
-+++ src/vsp_aero/viewer/vspaero_viewer.C
-@@ -8,7 +8,7 @@
- #include <stdio.h>
- //#include <config.h>
- #include <FL/Fl.H>
--#include "viewerUI.H"
-+#include "viewerUI.h"
- 
- int ForceView = 0;
- int TimeStamp = 0;