Hello, In discussing this with one of my co-workers, he said that Heimdal can build libkrb4 or libkrb, depending on configure options. So, I'm not clear what the proper test here should be... Perhaps test for libkrb, then if that doesn't exist, libkrb4. --Quanah -- Quanah Gibson-Mount Senior Systems Administrator ITSS/TSS/Computing Systems Stanford University GnuPG Public Key: http://www.stanford.edu/~quanah/pgp.html