Hi! First off: thanks for releasing 2.1.9, great job! I'm trying to get the freenac check_mac perl script running and get this error: freeradius: symbol lookup error: /usr/lib/perl/5.10/auto/Fcntl/Fcntl.so: undefined symbol: Perl_Istack_sp_ptr Afaik this means that the embedded perl interpreter (rlm_perl) is too old for the perl libraries that are "use"ed in the check_mac script (aka rad2vmps). However I was unable to find out what version of libperl is required for rlm_perl to work. My freeradius version is 2.1.9, just compiled it. Perl verion is v5.10.1. If you tell me that I need perl v.5.8.x libraries, how can I tell freeradius to look for the libraries in a folder like /usr/lib/perl/5.8.x instead of the default. At least "libdir = /usr/lib/perl/5.8.x" in radiusd.conf does not do the trick,I already tried it this way. I want the the old perl libs only to be used by freeradius, not systemwide. Thanks for your help, Jan