bugGNU Octave - Bugs: bug #33712, Octave 3.4.2 does not build...


bug #33712: Octave 3.4.2 does not build against qhull 2011.1

Submitted by:  None
Submitted on:  Mon 04 Jul 2011 04:36:27 PM UTC  
Category:  Configuration and Build System Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Build Failure
Status:  Fixed Assigned to:  None
Originator Name:  Originator Email:  -email is unavailable-
Open/Closed:  Closed Release:  3.4.2
Operating System:  GNU/Linux

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Tue 13 Dec 2011 10:04:35 PM UTC, comment #1: 

I checked in the following change so that Octave can find the qhull include files by the new or old names and as .../qhull/*.h or just .../*.h.


To make Octave work correctly, you may still need to compile Octave with -Dqh_QHpointer=1, depending on how your version of qhull was compiled.  This has to be done manually by adding the option to CXXFLAGS when compiling Octave as we don't have a configure test for that yet.

Other bugs in Octave's voronoi and convhulln functions were fixed recently.

All of these changes will be part of the upcoming 3.6.0 release.

John W. Eaton <jwe>
Project Administrator
Mon 04 Jul 2011 04:36:27 PM UTC, original submission:  

Hello!  I recently tried to build Octave 3.4.2 using the latest version of the qhull library, version 2011.1, and ran into problems during the build.

First, the configure script was unable to find qhull installed anywhere on my system.  It appears that with the new version, qhull has changed the location in which it stores its headers from, e.g.




It also appears that the qhull library file's name has been changed from libqhull.so to libqhull6.so.

To try and get Octave to compile, I modified the files


to look for qhull in the new include/libqhull directory (see the attached patch file) and also symlinked libqhull6.so to libqhull.so inside my library directory.  (Sorry if the changes to configure.ac and acinclude.m4 don't make sense... I'm not that familiar with GNU Autotools.)  I then ran

$ ldconfig


$ autoconf configure.ac > configure

to apply the changes to the configure script.  I got a warning that my version of autoconf was a bit older than the one originally used to create the build system, but I tried the build anyway just to see what happened:

$ ./configure --with-blas=atlas --with-lapack=lapack
$ make

The build finished successfully.  I then ran

$ make check

The check proceeded smoothly until it tried testing convhulln, which failed with "qhull internal error 6178":

qhull internal error (qh_setsize): current set size 1072693247 is greater than maximum size 0

Based on its self-description, this last error looks like a problem with qhull to me and not with Octave, but I'm not completely sure.  Any thoughts?




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Attach Files:

Attached Files
file #23620:  octave-qhull-2011.1.patch added by None (2KiB - application/octet-stream)


Depends on the following items: None found

Items that depend on this one: None found


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  • -email is unavailable- added by jwe (Posted a comment)

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    Follow 3 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2011-12-13 jwe StatusNone => Fixed
        Open/ClosedOpen => Closed
    2011-07-04 None Attached File- => Added octave-qhull-2011.1.patch, #23620

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