--- qgis-1.7.1/CMakeLists.txt	2011-09-24 01:38:02.000000000 +0200
+++ ../BUILD/qgis-1.7.1/CMakeLists.txt	2011-10-16 16:17:07.042202703 +0200
@@ -66,7 +66,9 @@
   SET (POSTGRESQL_PREFIX "" CACHE PATH "Path to POSTGRESQL base directory")
 ENDIF (WITH_POSTGRESQL)
 
-SET (WITH_INTERNAL_QWTPOLAR TRUE CACHE BOOL "Use internal built of QwtPolar")
+SET (WITH_INTERNAL_QWTPOLAR TRUE CACHE BOOL "Use internal build of QwtPolar")
+
+SET (WITH_INTERNAL_SPATIALINDEX TRUE CACHE BOOL "Use internal build of Spatialindex")
 
 SET (WITH_SPATIALITE TRUE CACHE BOOL "Determines whether SPATIALITE support should be built")
 
@@ -145,6 +147,11 @@
 FIND_PACKAGE(GSL)      # Georeferencer
 FIND_PACKAGE(GEOS)
 FIND_PACKAGE(GDAL)
+
+IF (NOT WITH_INTERNAL_SPATIALINDEX)
+  FIND_PACKAGE(Spatialindex REQUIRED)
+ENDIF(NOT WITH_INTERNAL_SPATIALINDEX)
+
 FIND_PACKAGE(Qwt REQUIRED)
 IF (NOT WITH_INTERNAL_QWTPOLAR)
   FIND_PACKAGE(QwtPolar REQUIRED)
--- qgis-1.7.1/src/core/CMakeLists.txt	2011-09-24 01:38:02.000000000 +0200
+++ ../BUILD/qgis-1.7.1/src/core/CMakeLists.txt	2011-10-16 16:19:28.845050529 +0200
@@ -266,7 +266,6 @@
   raster 
   renderer 
   symbology
-  spatialindex/include
   symbology-ng
   gps/qextserialport
   ${PROJ_INCLUDE_DIR}
@@ -274,6 +273,12 @@
   ${GDAL_INCLUDE_DIR}
 )
 
+IF (NOT WITH_INTERNAL_SPATIALINDEX)
+  INCLUDE_DIRECTORIES(${SPATIALINDEX_INCLUDE_DIR})
+ELSE (NOT WITH_INTERNAL_SPATIALINDEX)
+  INCLUDE_DIRECTORIES(spatialindex/include)
+ENDIF (NOT WITH_INTERNAL_SPATIALINDEX)
+
 IF (NOT WITH_INTERNAL_SPATIALITE)
   INCLUDE_DIRECTORIES(${SQLITE3_INCLUDE_DIR})
 ENDIF (NOT WITH_INTERNAL_SPATIALITE)
@@ -296,25 +301,27 @@
 #############################################################
 # spatial indexing library
 
-# add path prefix to every specified file
-MACRO(PATH_PREFIX OUTPUT PREFIX)
-  FOREACH(F ${ARGN})
-    SET(${OUTPUT} ${${OUTPUT}} ${PREFIX}/${F})
-  ENDFOREACH(F)
-ENDMACRO(PATH_PREFIX)
-
-# tools library
-PATH_PREFIX(TOOLS_SRC tools   ExternalSort.cc ExternalSort.h TemporaryFile.cc Tools.cc)
-PATH_PREFIX(GEOM_SRC geometry LineSegment.cc Point.cc Region.cc)
-
-# spatial index library
-PATH_PREFIX(SPINDEX_SRC spatialindex SpatialIndexImpl.cc)
-PATH_PREFIX(STMAN_SRC storagemanager Buffer.cc DiskStorageManager.cc MemoryStorageManager.cc RandomEvictionsBuffer.cc)
-PATH_PREFIX(RTREE_SRC rtree BulkLoader.cc Index.cc Leaf.cc Node.cc RTree.cc Statistics.cc)
-
-SET(SPINDEX_SRC ${TOOLS_SRC} ${GEOM_SRC} ${SPINDEX_SRC} ${STMAN_SRC} ${RTREE_SRC})
-
-PATH_PREFIX(INDEX_SRC spatialindex ${SPINDEX_SRC})
+IF (WITH_INTERNAL_SPATIALINDEX)
+  # add path prefix to every specified file
+  MACRO(PATH_PREFIX OUTPUT PREFIX)
+    FOREACH(F ${ARGN})
+      SET(${OUTPUT} ${${OUTPUT}} ${PREFIX}/${F})
+    ENDFOREACH(F)
+  ENDMACRO(PATH_PREFIX)
+  
+  # tools library
+  PATH_PREFIX(TOOLS_SRC tools   ExternalSort.cc ExternalSort.h TemporaryFile.cc Tools.cc)
+  PATH_PREFIX(GEOM_SRC geometry LineSegment.cc Point.cc Region.cc)
+  
+  # spatial index library
+  PATH_PREFIX(SPINDEX_SRC spatialindex SpatialIndexImpl.cc)
+  PATH_PREFIX(STMAN_SRC storagemanager Buffer.cc DiskStorageManager.cc MemoryStorageManager.cc RandomEvictionsBuffer.cc)
+  PATH_PREFIX(RTREE_SRC rtree BulkLoader.cc Index.cc Leaf.cc Node.cc RTree.cc Statistics.cc)
+  
+  SET(SPINDEX_SRC ${TOOLS_SRC} ${GEOM_SRC} ${SPINDEX_SRC} ${STMAN_SRC} ${RTREE_SRC})
+  
+  PATH_PREFIX(INDEX_SRC spatialindex ${SPINDEX_SRC})
+ENDIF (WITH_INTERNAL_SPATIALINDEX)
 
 #############################################################
 # qgis_core library
@@ -360,6 +367,11 @@
   TARGET_LINK_LIBRARIES(qgis_core ${SQLITE3_LIBRARY})
 ENDIF (WITH_INTERNAL_SPATIALITE)
 
+IF (NOT WITH_INTERNAL_SPATIALINDEX)
+  TARGET_LINK_LIBRARIES(qgis_core ${SPATIALINDEX_LIBRARY})
+ENDIF (NOT WITH_INTERNAL_SPATIALINDEX)
+
+
 IF (APPLE)
   SET_TARGET_PROPERTIES(qgis_core PROPERTIES BUILD_WITH_INSTALL_RPATH TRUE )
 ENDIF (APPLE)
--- qgis-1.7.1/cmake/FindSpatialindex.cmake	1970-01-01 01:00:00.000000000 +0100
+++ ../BUILD/qgis-1.7.1/cmake/FindSpatialindex.cmake	2011-10-16 16:17:07.043202653 +0200
@@ -0,0 +1,41 @@
+# Find Spatialindex
+# ~~~~~~~~
+# Redistribution and use is allowed according to the terms of the BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+#
+# Once run this will define: 
+# 
+# SPATIALINDEX_FOUND       = system has Spatialindex lib
+# SPATIALINDEX_LIBRARY     = full path to the Spatialindex library
+# SPATIALINDEX_INCLUDE_DIR = where to find headers 
+#
+
+
+FIND_PATH(SPATIALINDEX_INCLUDE_DIR NAMES SpatialIndex.h PATHS
+  /usr/include
+  /usr/local/include
+  "$ENV{LIB_DIR}/include" 
+  "$ENV{INCLUDE}" 
+  PATH_SUFFIXES spatialindex
+  )
+
+FIND_LIBRARY(SPATIALINDEX_LIBRARY NAMES spatialindex PATHS 
+  /usr/lib
+  /usr/local/lib
+  "$ENV{LIB_DIR}/lib" 
+  "$ENV{LIB}/lib" 
+  )
+
+IF (SPATIALINDEX_INCLUDE_DIR AND SPATIALINDEX_LIBRARY)
+  SET(SPATIALINDEX_FOUND TRUE)
+ENDIF (SPATIALINDEX_INCLUDE_DIR AND SPATIALINDEX_LIBRARY)
+
+IF (SPATIALINDEX_FOUND)
+  IF (NOT SPATIALINDEX_FIND_QUIETLY)
+    MESSAGE(STATUS "Found Spatialindex: ${SPATIALINDEX_LIBRARY}")
+  ENDIF (NOT SPATIALINDEX_FIND_QUIETLY)
+ELSE (SPATIALINDEX_FOUND)
+  IF (SPATIALINDEX_FIND_REQUIRED)
+    MESSAGE(FATAL_ERROR "Could not find Spatialindex")
+  ENDIF (SPATIALINDEX_FIND_REQUIRED)
+ENDIF (SPATIALINDEX_FOUND)
--- qgis-1.7.1/src/core/spatialindex/qgsspatialindex.h	2011-09-24 01:38:02.000000000 +0200
+++ ../BUILD/qgis-1.7.1/src/core/spatialindex/qgsspatialindex.h	2011-10-16 16:21:28.682006432 +0200
@@ -22,6 +22,8 @@
 {
   class IStorageManager;
   class ISpatialIndex;
+  class Region;
+  class Point;
 
   namespace StorageManager
   {
@@ -29,14 +31,6 @@
   }
 }
 
-namespace Tools
-{
-  namespace Geometry
-  {
-    class Region;
-  }
-}
-
 class QgsFeature;
 class QgsRectangle;
 class QgsPoint;
@@ -82,9 +76,9 @@
 
   protected:
 
-    Tools::Geometry::Region rectToRegion( QgsRectangle rect );
+    SpatialIndex::Region rectToRegion( QgsRectangle rect );
 
-    bool featureInfo( QgsFeature& f, Tools::Geometry::Region& r, long& id );
+    bool featureInfo( QgsFeature& f, SpatialIndex::Region& r, long& id );
 
 
   private:
--- qgis-1.7.1/src/core/spatialindex/qgsspatialindex.cpp	2011-09-24 01:38:02.000000000 +0200
+++ ../BUILD/qgis-1.7.1/src/core/spatialindex/qgsspatialindex.cpp	2011-10-16 17:06:45.806073042 +0200
@@ -66,7 +66,7 @@
   RTree::RTreeVariant variant = RTree::RV_RSTAR;
 
   // create R-tree
-  long indexId;
+  SpatialIndex::id_type indexId;
   mRTree = RTree::createNewRTree( *mStorage, fillFactor, indexCapacity,
                                   leafCapacity, dimension, variant, indexId );
 }
@@ -78,17 +78,17 @@
   delete mStorageManager;
 }
 
-Tools::Geometry::Region QgsSpatialIndex::rectToRegion( QgsRectangle rect )
+SpatialIndex::Region QgsSpatialIndex::rectToRegion( QgsRectangle rect )
 {
   double pt1[2], pt2[2];
   pt1[0] = rect.xMinimum();
   pt1[1] = rect.yMinimum();
   pt2[0] = rect.xMaximum();
   pt2[1] = rect.yMaximum();
-  return Tools::Geometry::Region( pt1, pt2, 2 );
+  return Region( pt1, pt2, 2 );
 }
 
-bool QgsSpatialIndex::featureInfo( QgsFeature& f, Tools::Geometry::Region& r, long& id )
+bool QgsSpatialIndex::featureInfo( QgsFeature& f, Region& r, long& id )
 {
   QgsGeometry *g = f.geometry();
   if ( !g )
@@ -101,7 +101,7 @@
 
 bool QgsSpatialIndex::insertFeature( QgsFeature& f )
 {
-  Tools::Geometry::Region r;
+  Region r;
   long id;
   if ( !featureInfo( f, r, id ) )
     return false;
@@ -131,7 +131,7 @@
 
 bool QgsSpatialIndex::deleteFeature( QgsFeature& f )
 {
-  Tools::Geometry::Region r;
+  Region r;
   long id;
   if ( !featureInfo( f, r, id ) )
     return false;
@@ -145,7 +145,7 @@
   QList<int> list;
   QgisVisitor visitor( list );
 
-  Tools::Geometry::Region r = rectToRegion( rect );
+  Region r = rectToRegion( rect );
 
   mRTree->intersectsWithQuery( r, visitor );
 
@@ -160,7 +160,7 @@
   double pt[2];
   pt[0] = point.x();
   pt[1] = point.y();
-  Tools::Geometry::Point p( pt, 2 );
+  Point p( pt, 2 );
 
   mRTree->nearestNeighborQuery( neighbors, p, visitor );