hi piyali, 

there are compilation warnings of overlaycommonalgs-00-02-22 with 16.6.x.y-val rel_1. 
http://atlas-computing.web.cern.ch/atlas-computing/links/distdirectory/nightlies/patchwebarea/nicos_web_area166xyvalprod32bs5g4prodopt/nicos_log_rel_1/event_eventoverlay_overlaycommonalgs.html
+verbatim+
../src/bsfilter.cxx: in member function ‘virtual statuscode bsfilter::execute()’:
../src/bsfilter.cxx:69: warning: unused variable ‘bc_time_ns’
../src/bsfilter.cxx:75: warning: unused variable ‘bcid’

../src/deepcopyobjects.cxx: in member function ‘void deepcopyobjects::copymuonobjectrdo(storegatesvc*, storegatesvc*) [with typetobecopied = cscrawdatacontainer]’:
../src/deepcopyobjects.cxx:588:   instantiated from here
../src/deepcopyobjects.cxx:222: warning: comparison between signed and unsigned integer expressions
-verbatim-

please fix them. 

thanks in advance, 
susumu 