Hi David and all a more specific debug: 1)after install yaz and zebra from Indexdata repo apt-get install libnet-z3950-zoom-perl [...] The following information may help to resolve the situation: The following packages have unmet dependencies: libnet-z3950-zoom-perl : Depends: perlapi-5.18.2 but it is not installable E: Unable to correct problems, you have held broken packages. apt show libnet-z3950-zoom-perl ... Version: 1.30-1.indexdata Depends: perl (>= 5.18.2-2+b1), perlapi-5.18.2, libc6 (>= 2.2.5), libxml2 (>= 2.6.27), libxslt1.1 (>= 1.1.25), libyaz5 (>= 5.0.11), libmarc-record-perl 2)after install yaz and zebra from ONLY Debian Jessie apt show libnet-z3950-zoom-perl ... Version: 1.30-1+b1 Depends: perl (>= 5.20.0-4), perlapi-5.20.0, libc6 (>= 2.4), libxml2 (>= 2.6.27), libxslt1.1 (>= 1.1.25), libyaz4 (>= 4.2.18), libmarc-record-perl Now in Debian Jessie perl is 5.20 So the solutions cuold be: 1)Build a package with perlapi-5.20.0 AND libyaz5 2)Wait unitl IndexData update its version of libnet-z3950-zoom-perl Bye Zeno Tajoli -- Zeno Tajoli /Dipartimento Sviluppi Innovativi/ - Automazione Biblioteche Email: z.tajoli@cineca.it Fax: 051/6132198 *CINECA* Consorzio Interuniversitario - Sede operativa di Segrate (MI)