external/CMakeLists.txt

@@ -73,4 +73,11 @@ else()
   set_target_properties(external::fles_logging PROPERTIES
                         IMPORTED_LOCATION external::fles_logging-NOTFOUND
              )
+
+  # Define an empty macro such that ctest is happy when no externals are
+  # available
+  # This is needed since to speed up the execution of the code format check 
+  # no externals are downloaded
+  macro(xpu_attach)
+  endmacro()
 endif()

reco/tasks/CbmSourceTs.cxx

@@ -61,6 +61,7 @@ Int_t CbmSourceTs::ReadEvent(UInt_t)
   std::cout << std::endl;
   if (fNumCalls == 0) LOG(info) << "SourceTs: Init call to ReadEvent";
   else {
+    fFlesTs = nullptr;
     fFlesTs = fFlesSource->get();
     if (!fFlesTs) {
       LOG(info) << "SourceTs: End of archive reached; stopping run.";