Debugging warnings

[Quentin Spencer]

I'm working on getting octave-forge-2006.07.09 working with 
octave-2.9.6. When I make a plot and try creating a legend, I'm getting 
some warnings that I don't understand, and can't figure out what is 
causing them. The test commands are:

octave:1> plot(1:10);
octave:2> legend('text');
warning: variable switch label
warning: variable switch label
warning: variable switch label
warning: variable switch label

There are some other errors after this, but I've already found a fix for 
them. The problem is the warnings. They don't give any information about 
where in the code they are occuring, and printing debugging information 
inside the function seems to suggest that this warning happens while the 
function is being parsed but before anything is executed. So, what does 
this mean and how can I get rid of it?

Quentin