diff -up syncevolution-1.5.3/src/backends/evolution/EvolutionCalendarSource.cpp.eds-libecal-2.0-b syncevolution-1.5.3/src/backends/evolution/EvolutionCalendarSource.cpp

--- syncevolution-1.5.3/src/backends/evolution/EvolutionCalendarSource.cpp.eds-libecal-2.0-b	2019-11-11 09:27:55.148982120 +0100

+++ syncevolution-1.5.3/src/backends/evolution/EvolutionCalendarSource.cpp	2019-11-11 09:27:56.117982106 +0100

@@ -370,7 +370,11 @@ static void list_revisions(const GSList

     const GSList *l;

     for (l = objects; l; l = l->next) {

+#ifdef HAVE_LIBECAL_2_0

+        ICalComponent *icomp = (ICalComponent*)l->data;

+#else

         icalcomponent *icomp = (icalcomponent*)l->data;

+#endif

         EvolutionCalendarSource::ItemID id = EvolutionCalendarSource::getItemID(icomp);

         string luid = id.getLUID();

         string modTime = EvolutionCalendarSource::getItemModTime(icomp);