diff --git a/CMakeLists.txt b/CMakeLists.txt
index 73c0445..169f461 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,65 +1,41 @@
-cmake_minimum_required (VERSION 2.6.4)
+cmake_minimum_required (VERSION 2.8.0)
 
 include (ExternalProject)
 
 project(FlightGear-Meta)
 
-if(NOT CMAKE_INSTALL_PREFIX)
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
     set(CMAKE_INSTALL_PREFIX ${CMAKE_BINARY_DIR}/install)
-    message(STATUS "Default install dir to ${CMAKE_INSTALL_PREFIX}")
-endif()
-
-if (UNIX)
-    set(BOOST_BOOTSTRAP "./bootstrap.sh" --prefix=${CMAKE_INSTALL_PREFIX})
-else()
-    set(BOOST_BOOTSTRAP "bootstrap.bat")
+    message(STATUS "Default install dir set to ${CMAKE_INSTALL_PREFIX}")
 endif()
 
 set(SG_DEPS OSG)
 set(FG_DEPS SimGear)
 set(SG_CMAKE_ARGS "")
 set(FG_CMAKE_ARGS "")
-set(FGRUN_CMAKE_ARGS "")
 
-if(APPLE)
-    set(BOOST_ARGS link=static stage --with-system)
-    ExternalProject_Add(Boost
-        PREFIX ${CMAKE_BINARY_DIR}
-        SVN_REPOSITORY http://svn.boost.org/svn/boost/tags/release/Boost_1_52_0
-        UPDATE_COMMAND ${BOOST_BOOTSTRAP}
-        CONFIGURE_COMMAND ""
-        BUILD_COMMAND ./bjam ${BOOST_ARGS}
-        BUILD_IN_SOURCE 1
-        INSTALL_COMMAND ./b2 install ${BOOST_ARGS})
-              
-    list(APPEND SG_DEPS Boost)
-endif()  # of Apple
 
 set(OSG_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX})
 set(SG_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX})
 set(FG_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX})
 set(PLIB_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX})
 set(RTI_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX})
-set(FGRUN_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX})
+
 
 # OpenSceneGraph configuration
-set(OSG_SOURCE http://www.openscenegraph.org/downloads/developer_releases/OpenSceneGraph-3.2.0.zip)
+#set(OSG_SOURCE http://www.openscenegraph.org/downloads/developer_releases/OpenSceneGraph-3.2.0.zip)
+set(OSG_SOURCE https://github.com/openscenegraph/osg.git)
+set(OSG_TAG OpenSceneGraph-3.2)
 
 if (APPLE)
-    set(SDKROOT /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.7.sdk)
-    # force disable Qt and Jasper, and ensure an SDKROOT is set, or
-    # osgViewer system detection goes wrongh
-    set(OSG_CMAKE_ARGS -DCMAKE_OSX_SYSROOT=${SDKROOT} 
+    # force disable Qt and Jasper
+    set(OSG_CMAKE_ARGS
         -DOSG_USE_QT=0 
         -DJASPER_LIBRARY= 
-        -DSDL_LIBRARY:FILEPATH=
-        -DCMAKE_OSX_ARCHITECTURES=x86_64
-        -DCMAKE_OSX_DEPLOYMENT_TARGET=10.7
     )
     # OSG with some patches applied for Mac
-    # set(OSG_SOURCE GIT_REPOSITORY git://gitorious.org/+flightgear-developers/openscenegraph/mac-release-osg.git)
-    # set(OSG_SOURCE URL http://www.openscenegraph.org/downloads/developer_releases/OpenSceneGraph-3.2.0.zip)
-
+    set(OSG_SOURCE https://github.com/zakalawe/osg.git)
+    set(OSG_TAG fgfs-osg-32)
 elseif(MSVC)
     set(OSG_MSVC "msvc")
     if (${MSVC_VERSION} EQUAL 1700)
@@ -104,61 +80,28 @@ else()
     # normal OSG
 endif()
 
-if (MSVC)
-    # download 3rdparty dependencies zip, including boost
-    ExternalProject_Add(WinDeps
-        SVN_REPOSITORY http://fgfs.goneabitbursar.com/fgwin3rdparty/trunk/msvc100/${RDPARTY_DIR}
-        # extract to current root
-        SOURCE_DIR ${CMAKE_BINARY_DIR}/winDeps/${RDPARTY_DIR}
-        BINARY_DIR ${CMAKE_BINARY_DIR}
-        UPDATE_COMMAND ""
-        CONFIGURE_COMMAND ""
-        BUILD_COMMAND ${CMAKE_SOURCE_DIR}/installWinDeps.bat
-        INSTALL_COMMAND ""
-    )
-
-    set(BOOST_ARGS link=static stage --with-system)
-    set(Boost_Version 1.54.0)
-    string(REPLACE "." "_" Boost_Version_Underscore ${Boost_Version})
-    ExternalProject_Add(Boost
-        PREFIX ${CMAKE_BINARY_DIR}
-        URL http://downloads.sourceforge.net/project/boost/boost/${Boost_Version}/boost_${Boost_Version_Underscore}.zip
-        URL_MD5 78a35834c45220a6164310e280abe675
-        UPDATE_COMMAND ""
-        CONFIGURE_COMMAND ${BOOST_BOOTSTRAP}
-        BUILD_COMMAND bjam --with-program_options ${BOOST_ARGS}
-        BUILD_IN_SOURCE 1
-        INSTALL_COMMAND ""
-    )
-
-    list(APPEND SG_DEPS Boost)
-    list(APPEND SG_CMAKE_ARGS -DBOOST_ROOT=${CMAKE_BINARY_DIR}/src/Boost)
-    list(APPEND FG_CMAKE_ARGS -DBOOST_ROOT=${CMAKE_BINARY_DIR}/src/Boost)
-    list(APPEND FG_CMAKE_ARGS -DPNG_LIBRARY=${CMAKE_BINARY_DIR}/${RDPARTY_DIR}/lib/libpng16.lib)
-    list(APPEND FGRUN_CMAKE_ARGS -DBOOST_ROOT=${CMAKE_BINARY_DIR}/src/Boost)
-endif(MSVC) # of Windows
 
 ExternalProject_Add(OSG
     DEPENDS ${OSG_DEPS}
     PREFIX ${CMAKE_BINARY_DIR}
-    URL ${OSG_SOURCE}
-    URL_HASH MD5=4980f8692712a24d4c99f363f80c6814
+    GIT_REPOSITORY ${OSG_SOURCE}
+    GIT_TAG ${OSG_TAG}
     BINARY_DIR osgbuild
     CMAKE_ARGS ${OSG_CMAKE_ARGS} -DCMAKE_INSTALL_PREFIX=${OSG_INSTALL_PREFIX}
 )
 
 # Because OSG install the libraries in lib64/ instead of lib/
+
 if (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
     ExternalProject_Add_Step(OSG after_install
-        COMMAND ${CMAKE_COMMAND} -E copy_directory ${OSG_INSTALL_PREFIX}/lib64 ${OSG_INSTALL_PREFIX}/lib
-        COMMAND ${CMAKE_COMMAND} -E remove_directory ${OSG_INSTALL_PREFIX}/lib64
+        COMMAND ${CMAKE_COMMAND} -E create_symlink ${OSG_INSTALL_PREFIX}/lib64 ${OSG_INSTALL_PREFIX}/lib
         DEPENDEES install
     )
-endif(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
+endif()
 
 # FIXME install of OpenRTI is failing on Windows, files in PREFIX/share which
 # are ending up in C:/Program Files/OpenRTI
-if (NOT MSVC)
+if (FALSE)
     ExternalProject_Add(OpenRTI
         PREFIX ${CMAKE_BINARY_DIR}
         DOWNLOAD_COMMAND GIT_REPOSITORY git://gitorious.org/openrti/openrti.git
@@ -205,23 +148,6 @@ if (NOT WIN32)
     list(APPEND FG_DEPS PLIB)
 endif()
 
-# Only compile FGRun for Windows
-if (MSVC)
-    list(APPEND FGRUN_CMAKE_ARGS -DMSVC_3RDPARTY_ROOT:PATH=${CMAKE_BINARY_DIR})
-    list(APPEND FGRUN_CMAKE_ARGS -DFLTK_FLUID_EXECUTABLE:FILEPATH=${CMAKE_BINARY_DIR}/${RDPARTY_DIR}/bin/fluid.exe)
-    list(APPEND FGRUN_CMAKE_ARGS -DGETTEXT_MSGFMT_EXECUTABLE:FILEPATH==${CMAKE_BINARY_DIR}/${RDPARTY_DIR}/bin/msgfmt.exe)
-    list(APPEND FGRUN_CMAKE_ARGS -DGETTEXT_MSGMERGE_EXECUTABLE:FILEPATH=${CMAKE_BINARY_DIR}/${RDPARTY_DIR}/bin/msgmerge.exe)
-    ExternalProject_Add(FGRun
-        PREFIX ${CMAKE_BINARY_DIR}
-        DEPENDS ${FG_DEPS}
-        DOWNLOAD_COMMAND ""    # no need to download
-        UPDATE_COMMAND ""      # or update.
-        SOURCE_DIR ${CMAKE_CURRENT_LIST_DIR}/fgrun
-        BINARY_DIR fgrunbuild
-        CMAKE_ARGS ${FGRUN_CMAKE_ARGS} -DCMAKE_INSTALL_PREFIX=${FGRUN_INSTALL_PREFIX} -DCMAKE_PREFIX_PATH=${OSG_INSTALL_PREFIX} -DADDITIONAL_LIBRARY_PATHS=${SG_INSTALL_PREFIX}
-    )
-endif()
-
 ExternalProject_Add(FlightGear
     PREFIX ${CMAKE_BINARY_DIR}
     DEPENDS ${FG_DEPS}