SuperBuild: try a patch on Ossim to compile with Geos 3.6

SuperBuild/patches/OSSIM/ossim-5-compat_geos36-all.diff

+diff -burN OSSIM.orig/ossim/src/ossim/base/ossimPolyArea2d.cpp OSSIM/ossim/src/ossim/base/ossimPolyArea2d.cpp
+--- OSSIM.orig/ossim/src/ossim/base/ossimPolyArea2d.cpp	2017-07-04 15:16:30.659669941 +0200
++++ OSSIM/ossim/src/ossim/base/ossimPolyArea2d.cpp	2017-07-05 09:46:23.142041689 +0200
+@@ -28,19 +28,13 @@
+ #include <exception>
+ #include <vector>
+ 
+-class ossimGeometryFactoryWrapper : public ossimReferenced
++class ossimGeometryFactoryWrapper : public ossimReferenced, public geos::geom::GeometryFactory
+ {
+ public:
+    ossimGeometryFactoryWrapper()
+-      : m_geomFactory(0)
+-   {
+-      geos::geom::PrecisionModel *pm =
+-         new geos::geom::PrecisionModel(geos::geom::PrecisionModel::FLOATING);
+-      m_geomFactory = new geos::geom::GeometryFactory(pm, -1); 
+-   }
+-   virtual ~ossimGeometryFactoryWrapper(){if(m_geomFactory) delete m_geomFactory;m_geomFactory=0;}
+-   
+-   geos::geom::GeometryFactory* m_geomFactory;
++      : geos::geom::GeometryFactory(new geos::geom::PrecisionModel(geos::geom::PrecisionModel::FLOATING),-1)
++    {}
++   virtual ~ossimGeometryFactoryWrapper(){}
+ };
+ 
+ class OssimPolyArea2dPrivate
+@@ -55,7 +49,7 @@
+    void deleteGeometry() { if(m_geometry) { delete m_geometry; m_geometry = 0; }}
+    void setGeometry(const ossimPolygon& polygon, const vector<ossimPolygon>& holes = vector<ossimPolygon>());
+    void setGeometry(GeometryPtr geom){deleteGeometry();m_geometry=geom;}
+-   geos::geom::GeometryFactory* geomFactory(){{return m_globalFactory.valid()?m_globalFactory->m_geomFactory:0;}}
++   geos::geom::GeometryFactory* geomFactory(){{return m_globalFactory.valid()?m_globalFactory.get():0;}}
+    GeometryPtr m_geometry;
+    static ossimRefPtr<ossimGeometryFactoryWrapper> m_globalFactory; 
+ };