There is a new version of the tclobjc library available. ftp://ftp.santafe.edu/pub/swarm/needed-software/tclobjc-1.2.tar.gz If you are installing Swarm 1.0.4, it is recommended that you first install this package. tclobjc-1.2 incorporates knowledge of changes that have been made to operating systems like Solaris and GNU/Linux in the last year or so. In addition, the autoconfiguration system should be more robust.