Syslog-ng 3.0 and later requires libraries which usually reside in ''/usr'', thus cannot be used on systems where ''/usr'' is mounted during boot time, after syslog-ng starts.


syslog-ng 3.0 and later can link to ''GLib'', ''EventLog'' and other libraries statically, thus it will not require those libraries to be present at boot time. This can be achieved by the '''--mixed-linking''' ''configure'' option.