I'd also welcome help with migrating this line: boost::once_flag configHelperFlag = BOOST_ONCE_INIT; (it is in core/modules/wconfig/Config.cc) std does not have equivalent, so it is a bit unclear how to migrate it (to me anyway) Related reading http://stackoverflow.com/questions/4200813/stdonce-flag-equivalent-of-boost-once-init Jacek ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the QSERV-L list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=QSERV-L&A=1