diff --git a/CMakeLists.txt b/CMakeLists.txt
index f251eebba..688e8092b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.3)
 
-project(EDM4HEP)
+project(EDM4HEP LANGUAGES CXX)
 
 # project version
 SET( ${PROJECT_NAME}_VERSION_MAJOR 0 )
@@ -9,6 +9,13 @@ SET( ${PROJECT_NAME}_VERSION_PATCH 2 )
 
 SET( ${PROJECT_NAME}_VERSION  "${${PROJECT_NAME}_VERSION_MAJOR}.${${PROJECT_NAME}_VERSION_MINOR}.${${PROJECT_NAME}_VERSION_PATCH}" )
 
+#- RPATH settings ----------------------------------------------
+set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE CACHE BOOL "RPATH USE LINK PATH")
+option(USE_RUNPATH_INSTEAD_OF_RPATH "Use runpath instead of rpath (allow specifying liked libraries via LD_LIBRARY_PATH)" OFF)
+if(USE_RUNPATH_INSTEAD_OF_RPATH) 
+    set(CMAKE_SHARED_LINKER_FLAGS "-Wl,--enable-new-dtags")
+endif()
+
 
 #--- Run the podio class generator and link library -------
 
diff --git a/edm4hep.yaml b/edm4hep.yaml
index a416d620b..824b3fe02 100644
--- a/edm4hep.yaml
+++ b/edm4hep.yaml
@@ -99,6 +99,12 @@ components:
         ObjectID(const podio::ObjectID& id ): index(id.index), collectionID(id.collectionID) {}\n
       "
 
+    # quantity with an identifier, a value and an error
+    edm4hep::Quantity:
+      Members:
+        - int16_t type // flag identifying how to interpret the quantity
+        - float value  // value of the quantity
+        - float error  // error on the value of the quantity
 
 datatypes :
 
@@ -358,6 +364,7 @@ datatypes :
     VectorMembers:
       - int32_t subDetectorHitNumbers        //number of hits in particular subdetectors.Check/set collection variable TrackSubdetectorNames for decoding the indices 
       - edm4hep::TrackState trackStates  //track states
+      - edm4hep::Quantity dxQuantities // different measurements of dx quantities
     OneToManyRelations:
       - edm4hep::TrackerHit trackerHits  //hits that have been used to create this track
       - edm4hep::Track tracks            //tracks (segments) that have been combined to create this track
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 421a6317f..09dd09ef3 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -2,32 +2,34 @@ IF(NOT BUILD_TESTING)
   RETURN()
 ENDIF()
 
+function(set_test_env _testname)
+  set_property(TEST ${_testname} APPEND PROPERTY ENVIRONMENT
+      LD_LIBRARY_PATH=$<TARGET_FILE_DIR:edm4hep>:$<TARGET_FILE_DIR:podio::podio>:$ENV{LD_LIBRARY_PATH}
+      ROOT_INCLUDE_PATH=${PROJECT_SOURCE_DIR}/edm4hep:$ENV{ROOT_INCLUDE_PATH}
+  )
+  set_tests_properties(${_testname} PROPERTIES
+    FAIL_REGULAR_EXPRESSION "[^a-z]Error;ERROR;error;Failed"
+    )
+endfunction()
+
 add_executable(write_events write_events.cc)
 target_include_directories(write_events PUBLIC ${CMAKE_SOURCE_DIR}/edm4hep )
 target_link_libraries(write_events edm4hep podio::podioRootIO)
 add_test(NAME write_events COMMAND write_events)
-set_tests_properties(write_events PROPERTIES
-  ENVIRONMENT LD_LIBRARY_PATH=$<TARGET_FILE_DIR:edm4hep>:$<TARGET_FILE_DIR:podio::podio>:$ENV{LD_LIBRARY_PATH}
-  )
+set_test_env(write_events)
 
 add_executable(read_events read_events.cc)
 target_include_directories(read_events PUBLIC ${CMAKE_SOURCE_DIR}/edm4hep )
 target_link_libraries(read_events edm4hep podio::podioRootIO)
 add_test(NAME read_events COMMAND read_events)
-set_tests_properties(read_events PROPERTIES
-  DEPENDS write_events
-  ENVIRONMENT LD_LIBRARY_PATH=$<TARGET_FILE_DIR:edm4hep>:$<TARGET_FILE_DIR:podio::podio>:$ENV{LD_LIBRARY_PATH}
-  )
+set_test_env(read_events)
 
 IF (podio_VERSION VERSION_GREATER "0.13")
   add_executable(reco_particle_ref reco_particle_ref.cc)
   target_include_directories(reco_particle_ref PUBLIC ${CMAKE_SOURCE_DIR}/edm4hep)
   target_link_libraries(reco_particle_ref edm4hep podio::podioRootIO)
   add_test(NAME reco_particle_ref COMMAND reco_particle_ref)
-  set_tests_properties(reco_particle_ref PROPERTIES
-    ENVIRONMENT
-    LD_LIBRARY_PATH=$<TARGET_FILE_DIR:edm4hep>:$<TARGET_FILE_DIR:podio::podio>:$ENV{LD_LIBRARY_PATH}
-  )
+  set_test_env(reco_particle_ref)
 ENDIF()
 
 IF(TARGET edm4hepSioBlocks)
@@ -35,16 +37,14 @@ IF(TARGET edm4hepSioBlocks)
   target_include_directories(write_events_sio PUBLIC ${CMAKE_SOURCE_DIR}/edm4hep)
   target_link_libraries(write_events_sio edm4hep podio::podioSioIO)
   add_test(NAME write_events_sio COMMAND write_events_sio)
-  set_tests_properties(write_events_sio PROPERTIES
-    ENVIRONMENT LD_LIBRARY_PATH=$<TARGET_FILE_DIR:edm4hep>:$<TARGET_FILE_DIR:podio::podio>:$ENV{LD_LIBRARY_PATH}
-    )
+  set_test_env(write_events_sio)
 
   add_executable(read_events_sio read_events_sio.cc)
   target_include_directories(read_events_sio PUBLIC ${CMAKE_SOURCE_DIR}/edm4hep)
   target_link_libraries(read_events_sio edm4hep podio::podioSioIO)
   add_test(NAME read_events_sio COMMAND read_events_sio)
+  set_test_env(read_events_sio)
   set_tests_properties(read_events_sio PROPERTIES
-    ENVIRONMENT LD_LIBRARY_PATH=$<TARGET_FILE_DIR:edm4hep>:$<TARGET_FILE_DIR:podio::podio>:$ENV{LD_LIBRARY_PATH}
     DEPENDS write_events_sio
     )
 ENDIF()
@@ -52,10 +52,10 @@ ENDIF()
 IF(TARGET ROOT::ROOTDataFrame)
   add_executable(test_rdf test_rdf.cc)
   target_include_directories(test_rdf PUBLIC ${CMAKE_SOURCE_DIR}/edm4hep ${CMAKE_SOURCE_DIR}/dataframe )
-  target_link_libraries(test_rdf edm4hepRDF ROOT::ROOTDataFrame)
+  target_link_libraries(test_rdf edm4hepRDF ROOT::ROOTDataFrame podio::podioRootIO)
   add_test(NAME test_rdf COMMAND test_rdf)
-  set_tests_properties(test_rdf PROPERTIES
-    ENVIRONMENT LD_LIBRARY_PATH=$<TARGET_FILE_DIR:edm4hep>:$<TARGET_FILE_DIR:podio::podio>:$ENV{LD_LIBRARY_PATH}
+  set_test_env(test_rdf)
+  set_property(TEST test_rdf PROPERTY DEPENDS
     DEPENDS write_events
     )
 endif()
@@ -69,9 +69,7 @@ if(HepMC3_FOUND AND HepPDT_FOUND )
   target_include_directories(edm4hep_testhepmc PUBLIC ${HEPMC3_INCLUDE_DIR} ${HEPPDT_INCLUDE_DIR} )
   target_link_libraries(edm4hep_testhepmc edm4hep podio::podioRootIO ${HEPPDT_LIBRARIES} ${HEPMC3_LIBRARIES})
   add_test(NAME edm4hep_testhepmc COMMAND edm4hep_testhepmc)
-  set_tests_properties(edm4hep_testhepmc PROPERTIES
-    ENVIRONMENT LD_LIBRARY_PATH=$<TARGET_FILE_DIR:edm4hep>:$<TARGET_FILE_DIR:podio::podio>:$ENV{LD_LIBRARY_PATH}
-    )
+  set_test_env(edm4hep_testhepmc)
 endif()
 
 add_subdirectory(utils)