Hi Alan, We install the library libaio-devel-0.3.109-13.el7.x86_64. This installs the following two files: /usr/include/libaio.h /usr/lib64/libaio.so Is this installation enough? Is it necessary to add parameters during configuration and compilation of the software? BR Andrea ________________________________ Da: Freeradius-Users <freeradius-users-bounces+andrea.mucci=outlook.com@lists.freeradius.org> per conto di Alan Buxey <alan.buxey@gmail.com> Inviato: venerdì 26 gennaio 2018 18:12 A: FreeRadius users mailing list Oggetto: Re: Compilation Warning - FreeRadius 3.0.16 if you dont need/use SecurID or opendirectory no... but you installed with ORACLE path - so I assume you want/need Oracle support..and thus configure: WARNING: Oracle version >= 12 needs -laio THAT is the one you should care about. you need to install the aio development libraries alan - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html