At the moment, the software has only been tested extensively on the following systems:
Debian GNU/Linux 2.0 with GIMP 1.0.2/GTK 1.0.6 and GIMP 1.1.2(1.1.3)/GTK 1.1.14 (and 1.2) using gcc and egcs on AMD K6II with both GNU make (gmake) and BSD make (pmake). (pre 0.3 versions)
Debian GNU/Linux 2.1 with GIMP 1.1.x/GTK 1.2.x with GNU make.