Thanks Andy! The problem was reported by Axel using, I believe, the default compiler on Ubuntu 16.04, which is gcc 5.4.0 . Gerri -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/xrootd/xrootd/issues/517#issuecomment-302034715 ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-DEV list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-DEV&A=1