[f2py] f2py, C, and multidimensional arrays.

Greetings.  I am new to F2py and am trying to use it to wrap some simple C
functions.  I've had success with scalars and vectors, but cannot get any
multidimensional arrays to work correctly.  An example:

/* bar.c */
void bar(int n, int m, double **x) {
  int i, j;
  for (i=0; i<n; i++)
    for (j=0; j<m; j++)
      printf("Position %i, %i = %.3f\n", i, j, x[i][j]);
}

! wrapper m.pyf
python module m
interface
  subroutine bar(n, m, x)
    intent(c) bar
    intent(c)
    integer intent() :: n
    integer intent() :: m
    double precision intent(in) :: x(n,m)
  end subroutine bar
end interface
end python module m

Build shared object:
$ f2py2.5 foo.c foo.pyf -c

Try to run it:
>>>import m
>>>import numpy as np
>>>dog = np.zeros((0,0))
>>>m.bar(dog)
Bus error

And that's it.  It drops me out of ipython/python shell and back to the bash
prompt.  I cannot find any examples similar to this, nor any mailing list
threads on this topic.  Does anyone have any experience with such examples?

Thanks for your help.

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