When started from shell it always says
AmiVNC - main : Log file open error (0)
AmiVNC session closed
AmiVNC halted
I tried amivnc4 -logfile=ram:bla and some other things, but it always halts.
At least I could not recompile it, because I miss rules.make
More docs can be found at amivncs website
http://s.guillard.free.fr/