I built the latest version of VirtualT on Slackware Linux 13.1 this morning. There weren't too many problems encountered, but I did have to modify the GNUmakefile, and six of the source/header files. All of the source/header file modifications were just to add an #include that was missing. I have attached a zip file containing the patch files for the GNUmakefile and the source/header files, if you wish to use them.
patch files for VirtualT on Linux
Closing old tickets, please re-open if you still care.