I'm running Calendar Server 9.0 on Ubuntu 16.04.1. It seems to be working fine, but I have this nagging error in the back of my mind that makes me worry that something still isn't quite right. When I run bin/develop, I receive the following error: .../ccs-calendarserver-CalendarServer-9.0/bin/_py.sh: line 104: [: # 1 "<stdin>": integer expression expected .../ccs-calendarserver-CalendarServer-9.0/bin/_py.sh: line 109: [: # 1 "<stdin>": integer expression expected It works even though I receive this error, so I'm trying to understand it to see if it matters. This is in the middle of a function called cmp_version which is expecting numeric arguments. It receives these 2 values: 1. 20428 - seems OK 2. # 1 "<stdin>" - looks bad to me It looks like the c_macro function is the source of the bad 2nd value. From what I can tell, the function is being called on ldap.h and trying to get LDAP_VENDOR_VERSION, but instead gets back the bogus value. I'm guessing this means LDAP won't work for me? Blessings, Rob Archibald, M.M. CTO, EndFirst LLC Founder and Music Director, Ensign Symphony & Chorus rob@robarchibald.com