ghull -2011. give errors

[Tatsuro MATSUOKA]

Hello

I have tried to build octave with qhull -2011 on then mingw platform.
For the qhull -2010,  fntests goes well without FAIL.
However with qhull -2011 gives errors in fntests., for example,  


#****************************************************
>>>>> processing 
>>>>> e:\usr\Tatsu\mingwhome\octaves\hg\octave-work\src\DLD-FUNCTIONS\convhulln.cc
  ***** testif HAVE_QHULL
 cube = [0 0 0;1 0 0;1 1 0;0 1 0;0 0 1;1 0 1;1 1 1;0 1 1];
 [h, v] = convhulln (cube);
 assert (size (h), [6 4]); 
 h = sortrows (sort (h, 2), [1:4]);
 assert (h, [1 2 3 4; 1 2 5 6; 1 4 5 8; 2 3 6 7; 3 4 7 8; 5 6 7 8]);
 assert (v, 1, 10*eps);
!!!!! test failed
assert (size (h),[6, 4]) expected
   6   4
but got
   0   3
values do not match
  ***** testif HAVE_QHULL
 cube = [0 0 0;1 0 0;1 1 0;0 1 0;0 0 1;1 0 1;1 1 1;0 1 1];
 [h, v] = convhulln (cube, "QJ");
 assert (size (h), [12 3]); 
 assert (sortrows (sort (h, 2), [1:3]), [1 2 4; 1 2 5; 1 4 5; 2 3 4; 2 3 6; 2 5 
6; 3 4 8; 3 6 7; 3 7 8; 4 5 8; 5 6 8; 6 7 8]);
 assert (v, 1.0, 1e6*eps);
!!!!! test failed
assert (size (h),[12, 3]) expected
   12    3
but got
   0   3
values do not match
  ***** testif HAVE_QHULL
 tetrahedron = [1 1 1;-1 -1 1;-1 1 -1;1 -1 -1];
 [h, v] = convhulln (tetrahedron);
 h = sortrows (sort (h, 2), [1 2 3]);
 assert (h, [1 2 3;1 2 4; 1 3 4; 2 3 4]);
 assert (v, 8/3, 10*eps);
!!!!! test failed
assert (h,[1, 2, 3; 1, 2, 4; 1, 3, 4; 2, 3, 4]) expected
   1   2   3
   1   2   4
   1   3   4
   2   3   4
but got
[](0x3)
Dimensions don't match
#****************************************************

Does anyone try to build with qull-2011?
I would like to know whether the above behavior is mingw specific or not.

Regards

Tatsuro