Bug#738752: Bug#738791: transition: qhull

[Barak A. Pearlmutter]

This compilation failure has

| gcc ... -I/usr/include/qhull
| PyMca/Object3D/Object3DQhull/Object3DQhull.c:7:19: fatal error:
qhull.h: No such file or directory
|  #include <qhull.h>

The latest upstream qhull uses /usr/include/libqhull and
/usr/include/libqhullcpp for C and C++ header files, respectively.
And libqhull.h instead of qhull.h.  So instead of

  #include <qhull/qhull.h>

ane should now use

  #include <libqhull/libqhull.h>

I've added compatibility links from /usr/include/qhull/* for the
contents of the above directories. This report has caused me to add
another compatibility link from /usr/include/qhull/qhull.h to
/usr/include/qhull/liqhull.h.  So building with liqhull-dev (>=
2012.1-3) might solve this problem.

But in the longer term, it would be best to transition to the new path
and filename.

Cheers,

--Barak.
--
Barak A. Pearlmutter
 Hamilton Institute & Dept Comp Sci, NUI Maynooth, Co. Kildare, Ireland
 http://www.bcl.hamilton.ie/~barak/