Hi Mattias, The safer way of handling the printing of size values is to use %lu and cating the size to an unsigned long. According to the spec, there is no guarantee that printf supports the %z format type on all platforms but the casting solution will always work. Could you resubmit the pull request with the change? Thanks! -- 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/pull/911#issuecomment-469586508 ######################################################################## 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