diff -r d5e927d5853b -r 7cee158cb8cd build/Makefile.project
--- a/build/Makefile.project	Tue Sep 14 21:06:50 2010 +0300
+++ b/build/Makefile.project	Wed Sep 15 12:05:25 2010 +0300
@@ -49,6 +49,9 @@
       # Use release written in file
       include $(RD_JAVA_S60_RELEASE_FILE)
     else
+    ifneq ($(wildcard $(addsuffix Symbianv4.sis,$(S60_STUBSIS_DIRS))),)
+      RD_JAVA_S60_RELEASE = 10.1
+    else
     ifneq ($(wildcard $(addsuffix Series60v5.2.sis,$(S60_STUBSIS_DIRS))),)
       RD_JAVA_S60_RELEASE = 9.2
     else
@@ -63,6 +66,7 @@
     endif
     endif
     endif
+    endif
     # Export the release info, so that no autodetermination is needed after this
     export RD_JAVA_S60_RELEASE
   endif
@@ -184,6 +188,14 @@
   PROJECT_DEFINES += RD_JAVA_PROXIMITY_LISTENER_ENABLED
 endif
 
+# Java PIM Multiple Calendar exsist in 9.2 only(can not be used if 5.0 and for 10.1 as native support doesn't exsist)
+ifdef RD_JAVA_S60_RELEASE_9_2
+  RD_JAVA_PIM_MULTICAL_ENABLED = 1
+endif
+ifdef RD_JAVA_PIM_MULTICAL_ENABLED
+  PROJECT_DEFINES += RD_JAVA_PIM_MULTICAL_ENABLED
+endif
+
 ifeq ($(OPENC_BETA_PATCH),1)
   PROJECT_DEFINES += RD_JAVA_OPENC_BETA_PATCH
 endif