error when using mkstemp

[Aditya Bhagwat]

Dear all,

I am using octave version 3.2.3, (compiled on Ubuntu 9.04), in an 
inferior octave process from within Emacs 23.1 (also compiled on Ubuntu 
9.04).

For some reason, I can't get the function 'mkstemp' working properly. 
When I enter following command:

       [fid, name, msg] = mkstemp('outputxxxxxx', 1)
 
This is the error message I get:

       octave> [fid,name,msg] = mkstemp('outputxxxxxx', 1)
       fid = -1
       name =
       msg = Invalid argument