Re: Release candidate for Qhull 2012.1

[Tatsuro MATSUOKA]

Hello

--- On Mon, 2012/1/30, Ben Abbott wrote:

> 
> On Jan 29, 2012, at 11:04 PM, Tatsuro MATSUOKA wrote:
> 
> > --- On Sun, 2012/1/29, Brad Barber wrote:
> > 
> >> Hi all,
> >> 
> >> See below for the Qhull 2012.1 release candidate.  It is not deployed to 
> >> qhull.org, because I need feedback on the changes.   The goal of this 
> >> release is to clean up the builds and make them suitable to Octave, R, and 
> >> other users. 
> >> 
> >> If something is broken for you in Qhull 2012.1, please let me know. 
> >> 
> >> Qhull 2012.1 adds libqhull.so for Octave and other users.  This shared 
> >> library uses a static global data structure .   It is the same as the 
> >> debian build, Qhull 2009.1.  To help avoid confusion, libqhull6_p.so is 
> >> the new name for qhull with a dynamic global data structure 
> >> (-Dqh_QHpointer).
> >> 
> >> Qhull 2012.1 fixes strict aliasing in qset.c and adds a qset test program.
> >> 
> >> Qhull 2012.1 includes a draft debian build in the 'config/' directory.  
> >> Someone will need to verify that it works.   As before, it produces 
> >> libqhull.so and the qhull executables.  It could be updated to match the 
> >> other builds.
> >> 
> >> A later version of Qhull may include a third interface to get rid of 
> >> global variables.  It would pass qh_qhT as a parameter to each function 
> >> call.  There would be a single source tree using a macro to enable the 
> >> extra parameter.  There would be a third shared library, tentatively named 
> >> libqhull7_t.so for "threading".   If so, the C++ interface will probably 
> >> switch to this library.   
> >> 
> >>    http://gitorious.org/qhull/
> >>    http://gitorious.org/qhull/qhull/blobs/master/src/Changes.txt
> >>    http://www.qhull.org/download/qhull-2012.1-src-tgz.md5sum
> >>    http://www.qhull.org/download/qhull-2012.1-src.tgz
> >>    http://www.qhull.org/download/qhull-2012.1-zip.md5sum
> >>    http://www.qhull.org/download/qhull-2012.1.md5sum
> >>    http://www.qhull.org/download/qhull-2012.1.zip
> >> 
> >> Many thanks for helping with qhull.
> >> 
> >>                     --Brad
> > 
> > Hello
> > 
> > I have built Qhull 2012.1 on MinGW and built octave with it.
> > However, fntests results
> >  src\DLD-FUNCTIONS\convhulln.cc .........................panic: 
> >Segmentation violation -- stopping myself...
> > 
> > So I execute ./run-octave
> > 
> > octave:1> 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];
> > octave:2> [h, v] = convhulln (cube);
> > panic: Segmentation violation -- stopping myself...
> > 
> > I have attached Ben's patch ( qhull.diff )
> > http://octave.1599824.n4.nabble.com/Compiling-with-Qhull-tp4205738p4293994.html
> > 
> > The below exe files created in bin directory produced in the make process.
> > qconvex.exe, qdelaunay.exe, qhalf.exe, qhull.exe, qvoronoi.exe and rbox.exe 
> > 
> > Can I execute some test using these files ?
> > 
> > Regards
> > 
> > Tatsuro
> 
> If I understand correctly the qhull.diff I posted is only needed for the 2011 
> version.
> 
> Did you apply it to the 2012 version? When I did that (by accident) I 
> encountered a core dump.
> 
> Ben

Did you apply it to the 2012 version?
Yes, I did.

I have misled the patch. 

I will rebuild without the patch.  

Thank you for your immediate response.

Regards

Tatsuro