Octave 9.2 Compatibility

Hi,
First of all, thanks for this useful code. 

I have been using this code to generate .mex for the different versions of Octave 8.X and it works perfectly. However, after upgrading to octave 9.X it is possible to continue generating said .mex but when running ipopt a segmentation fault appears and the whole program closes.

Have you encountered this problem? How did you solve it?

Thanks