diff -ru player-2.1.1.orig/server/drivers/vectormap/dbconn.cc player-2.1.1/server/drivers/vectormap/dbconn.cc
--- player-2.1.1.orig/server/drivers/vectormap/dbconn.cc	2008-04-12 23:15:43.000000000 +0100
+++ player-2.1.1/server/drivers/vectormap/dbconn.cc	2008-12-17 10:57:27.000000000 +0000
@@ -314,13 +314,13 @@
     printf("GEOSGeomFromWKB_buf returned NULL!\n");
     return res;
   }
-  GEOSGeom linestring = GEOSGetExteriorRing(polygon);
+  const GEOSGeometry* linestring = GEOSGetExteriorRing(polygon);
   if (linestring == NULL)
   {
     printf("GEOSGetExteriorRing returned NULL!\n");
     return res;
   }
-  GEOSCoordSeq coords = GEOSGeom_getCoordSeq(linestring);
+  const GEOSCoordSequence* coords = GEOSGeom_getCoordSeq(linestring);
   if (coords == NULL)
   {
     printf("GEOSGeom_getCoordSeq returned NULL!\n");
diff -ru player-2.1.1.orig/server/drivers/vectormap/vec2map.cc player-2.1.1/server/drivers/vectormap/vec2map.cc
--- player-2.1.1.orig/server/drivers/vectormap/vec2map.cc	2008-04-16 03:40:20.000000000 +0100
+++ player-2.1.1/server/drivers/vectormap/vec2map.cc	2008-12-17 11:00:16.000000000 +0000
@@ -285,7 +286,7 @@
 #ifdef HAVE_GEOS
 void Vec2Map::dumpFeature(GEOSGeom geom, vector<player_segment_t> & segments)
 {
-    GEOSCoordSeq seq;
+    const GEOSCoordSequence* seq;
     double x0, y0, x1, y1;
     unsigned int numcoords;
     player_segment_t segment;
@@ -338,16 +339,16 @@
 	}
 	break;
     case GEOS_POLYGON:
-	this->dumpFeature(GEOSGetExteriorRing(geom), segments);
+	this->dumpFeature(const_cast<GEOSGeometry*>(GEOSGetExteriorRing(geom)), segments);
 	numcoords = GEOSGetNumInteriorRings(geom);
-	for (i = 0; i < (signed)numcoords; i++) this->dumpFeature(GEOSGetInteriorRingN(geom, i), segments);
+	for (i = 0; i < (signed)numcoords; i++) this->dumpFeature(const_cast<GEOSGeometry*>(GEOSGetInteriorRingN(geom, i)), segments);
 	break;
     case GEOS_MULTIPOINT:
     case GEOS_MULTILINESTRING:
     case GEOS_MULTIPOLYGON:
     case GEOS_GEOMETRYCOLLECTION:
 	numcoords = GEOSGetNumGeometries(geom);
-	for (i = 0; i < (signed)numcoords; i++) this->dumpFeature(GEOSGetGeometryN(geom, i), segments);
+	for (i = 0; i < (signed)numcoords; i++) this->dumpFeature(const_cast<GEOSGeometry*>(GEOSGetGeometryN(geom, i)), segments);
 	break;
     default:
 	PLAYER_WARN("unknown feature type!");