mkoctfile and 64 bit

[Michael Kopp]

Dear list members,

I have just installed the 64-bit version of Ubuntu 7.10 on a PC with an 
Intel Q6660 CPU. Currently, I am not able to use
functions compiled with mkoctfile. Although the compilation with 
"mkoctfile xxx.cc" doesn't produce any error messages, when I try to use 
the function in an m-file, I receive error messages like "error: 
xxx.oct: wrong ELF class: ELFCLASS32". This is true for both octave 2.1 
and octave 2.9. Any suggestions?

TIA,

Michael.