Merge pull request #81 from nim65s/devel

[CMake] DYNAMIC_GRAPH_PLUGINDIR is now relative

CMakeLists.txt

@@ -143,10 +143,9 @@ ENDIF(SUFFIX_SO_VERSION)
 INSTALL(TARGETS ${PROJECT_NAME} EXPORT ${TARGETS_EXPORT_NAME} DESTINATION lib)
 
 
-SET(DYNAMIC_GRAPH_PLUGINDIR "${CMAKE_INSTALL_PREFIX}/lib/${PROJECT_NAME}-plugins")
+SET(DYNAMIC_GRAPH_PLUGINDIR "lib/${PROJECT_NAME}-plugins")
 SET(PACKAGE_EXTRA_MACROS "set(DYNAMIC_GRAPH_PLUGINDIR ${DYNAMIC_GRAPH_PLUGINDIR})")
 SET(PKG_CONFIG_EXTRA "plugindir=${DYNAMIC_GRAPH_PLUGINDIR}")
-SET(CMAKE_INSTALL_RPATH "${DYNAMIC_GRAPH_PLUGINDIR}")
 
 ADD_SUBDIRECTORY(src)
 IF(BUILD_TESTING)