When SysInfo™ is run, it looks for SDL scripts automatically under the
$prefix/lib/sdl directory tree. All files ending
with ".sdl" are run.
You can have SysInfo™ search your own set of SDL scripts by specifying the
--sdlpath $path command line option or
by setting the
MCSYSINFO_SDL_PATH environment variable to a comma
seperated list of directories to search for ".sdl" files.