I have tried to install sguil client using FreeBSD Sguil installation guide and it seems the itcl(incrtcl) part keeps giving me error when compiling from source. After all I decide to install itcl(incrtcl) from port as well as iwidgets, however sguil client giving me this error(segmentation fault) while I launch it. It seems the tclX that I installed using freebsd port causing the problem. Then I decide to install tclX from source and finally sguil client launching without problem. It's been a while to get it working and finally it does ...... below are the screenshots of how sguil client looks like in my FreeBSD workstation. For people who don't know what is sguil client, check this out.