--- src/CMakeLists.txt.libdir	2011-01-23 13:35:19.000000000 +0100
+++ src/CMakeLists.txt	2011-02-04 10:43:32.000000000 +0100
@@ -1,5 +1,7 @@
 # Common variables
-set(LIB_INSTALL_DIR ${CMAKE_INSTALL_PREFIX}/lib)
+if(NOT DEFINED LIB_INSTALL_DIR)
+    set(LIB_INSTALL_DIR ${CMAKE_INSTALL_PREFIX}/lib)
+endif(NOT DEFINED LIB_INSTALL_DIR)
 set(INCLUDES_INSTALL_DIR ${CMAKE_INSTALL_PREFIX}/include/QtGStreamer)
 set(EXPORT_TARGET_SET QtGStreamerTargets)
 
--- cmake/modules/FindGStreamer.cmake.plugindir	2011-02-04 10:56:50.000000000 +0100
+++ cmake/modules/FindGStreamer.cmake	2011-02-04 11:05:34.000000000 +0100
@@ -4,6 +4,7 @@
 #  GSTREAMER_FOUND - system has GStreamer
 #  GSTREAMER_INCLUDE_DIR - the GStreamer include directory
 #  GSTREAMER_LIBRARY - the main GStreamer library
+#  GSTREAMER_PLUGIN_DIR - the GStreamer plugin directory
 #
 #  And for all the plugin libraries specified in the COMPONENTS
 #  of find_package, this module will define:
@@ -32,6 +33,9 @@
 
 if (PKG_CONFIG_FOUND)
     pkg_check_modules(PKG_GSTREAMER gstreamer-${GSTREAMER_ABI_VERSION})
+    exec_program(${PKG_CONFIG_EXECUTABLE}
+	    ARGS --variable pluginsdir gstreamer-${GSTREAMER_ABI_VERSION}
+	    OUTPUT_VARIABLE GSTREAMER_PLUGIN_DIR)
 endif()
 
 find_library(GSTREAMER_LIBRARY
--- elements/CMakeLists.txt.plugindir	2011-02-04 11:06:17.000000000 +0100
+++ elements/CMakeLists.txt	2011-02-04 11:06:51.000000000 +0100
@@ -15,5 +15,5 @@
     target_link_libraries(gstqwidgetvideosink ${QT_QTCORE_LIBRARY} ${QT_QTGUI_LIBRARY}
                                               ${GOBJECT_LIBRARIES} ${GSTREAMER_LIBRARY}
                                               ${GSTREAMER_BASE_LIBRARY} ${GSTREAMER_VIDEO_LIBRARY})
-    install(TARGETS gstqwidgetvideosink DESTINATION ${CMAKE_INSTALL_PREFIX}/lib/gstreamer-0.10)
+    install(TARGETS gstqwidgetvideosink DESTINATION ${GSTREAMER_PLUGIN_DIR})
 endif()