[Openmd-developers] QHULL as static while building

[Dan Gezelter]

I think those are already added by FindQHull.cmake  (look at the last few lines)

And it looks like the flags.make files in the build directories all do have -Dqh_QHpointer defined in the CXX_DEFINES, so it should be compiling with that flag set.  Do we need to link to an additional library?

 --Dan

On Sep 8, 2014, at 5:13 PM, Martin Vala <mvala at saske.sk> wrote:

> Hi Dan,
> 
> what about this?
> 
> #if qh_QHpointer  /* see user.h */
>  if (qh_qh){
>      printf ("QH6238: Qhull link error.  The global variable qh_qh was not initialized\n\
>              to NULL by global.c.  Please compile this program with -Dqh_QHpointer_dllimport\n\
>              as well as -Dqh_QHpointer, or use libqhullstatic, or use a different tool chain.\n\n");
>      exit -1;
>  }
> #endif
> 
> Ciao
> 
> MArtin
> 
> On 08/09/2014 22:52, Martin Vala wrote:
>> Hi Dan,
>> 
>> I think this is good guess. I think we only need to Initialize 'qh' it once.
>> 
>> Ciao
>> 
>> Martin
>> On 08/09/2014 22:31, Dan Gezelter wrote:
>>>> facet variable (pointer) (line 76) is declared and it is not initialized so address is random. Then i don't see any "new" operator. Maybe it is hidden somewhere. Then at line 217
>>> The FORALLFacets iterator on line 214 is supposed to be setting that.   The qhull.h include file defines:
>>> 
>>> #define FORALLfacets for (facet=qh facet_list;facet && facet->next;facet=facet->next)
>>> 
>>> I think the problem might be the qh object.  The qhull site says this:
>>> 
>>> When you read the code, be aware of the macros "qh" and "qhstat", e.g., "qh hull_dim". They are defined in libqhull.h. They allow the global data structures to be pre-allocated (faster access) or dynamically allocated (allows multiple copies).
>>> 
>>> I'm not sure that object exits when we dynamically link.
>>> 
>>>  --Dan
>>> 
>>> 
>>> ***********************************************
>>>   J. Daniel Gezelter
>>>   Associate Professor of Chemistry
>>>   Department of Chemistry and Biochemistry
>>>   251 Nieuwland Science Hall
>>>   University of Notre Dame
>>>   Notre Dame, IN 46556-5670
>>> 
>>>   phone:  +1 (574) 631-7595
>>>   fax:    +1 (574) 631-6652
>>>   e-mail: gezelter at nd.edu
>>>   web:    http://www.nd.edu/~gezelter
>>> ************************************************
>>> 
>>> 
>>> 
>> 
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***********************************************
  J. Daniel Gezelter
  Associate Professor of Chemistry
  Department of Chemistry and Biochemistry
  251 Nieuwland Science Hall
  University of Notre Dame
  Notre Dame, IN 46556-5670

  phone:  +1 (574) 631-7595
  fax:    +1 (574) 631-6652
  e-mail: gezelter at nd.edu
  web:    http://www.nd.edu/~gezelter
************************************************