[Gmsh] Compiling Gmsh with opencascade

[Christophe Geuzaine]

Vun, Simon (Contractor) wrote:
> Hi David and gmsh users,
> 
> I've managed to build gmsh with opencascade and have attached my "modified" version of the readme.occ supplied with gmsh docs.
> I've supplied details of my machine and software I used. 
> I am happy to say that I have been able to import step and iges files with it.
>  
> Please have a look and let me know if I've done something wrong, particularly adding -pthread to the CXXFLAGS.

Simon - Thanks: I've added your changes in the README.


> 
> Cheers,
> 
> Simon.
> 
> -----Original Message-----
> From: David Colignon [mailto:David.Colignon at ulg.ac.be] 
> Sent: Wednesday, 5 March 2008 8:34 PM
> To: Vun, Simon (Contractor)
> Cc: gmsh at geuz.org
> Subject: Re: [Gmsh] Compiling Gmsh with opencascade
> 
> Hi Simon,
> 
> seems like with the dynamic occ libs on linux you might need link with the pthread library. Can you try adding -lpthread to the GMSH_LIBS variable in the "gmsh/variables" file ?
> 
> Cheers,
> 
> Dave
> 
> 
> --
> David Colignon, Ph.D.
> Collaborateur Logistique F.R.S.-FNRS (Equipements de Calcul Intensif) ACE - Applied & Computational Electromagnetics Institut Montefiore B28 Université de Liège 4000 Liège - BELGIQUE
> Tél: +32 (0)4 366 37 32
> Fax: +32 (0)4 366 29 10
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> 
> 
> 
> Vun, Simon (Contractor) wrote:
>> Hi there,
>>
>> I've just started to use gmsh as my meshing tool for openfoam CFD.  
>> Currently I'm trying to install gmsh on my 32bit intel Suse10.1 machine.
>>
>> I followed the readme for occ and was successful with the installation 
>> of opencascade.  However I'm currently trying to compile gmsh with 
>> opencascade and I've hit a wall.
>>
>> I configure opencascade using the following
>>
>> ./configure --enable-occ --with-occ-prefix=/usr/local/OpenCASCADE6.2.0/ 
>> (since OCC is located in this dir).
>>
>> When I try to "make" gmsh I get the following error;
>>
>>  make[1]: Leaving directory `/usr/local/gmsh-2.1.1/contrib/ANN'
>> make[1]: Entering directory `/usr/local/gmsh-2.1.1/contrib/Netgen'
>> make[1]: `../../lib/libGmshNetgen.a' is up to date.
>> make[1]: Leaving directory `/usr/local/gmsh-2.1.1/contrib/Netgen'
>> make[1]: Entering directory `/usr/local/gmsh-2.1.1/contrib/MathEval'
>> make[1]: `../../lib/libGmshMathEval.a' is up to date.
>> make[1]: Leaving directory `/usr/local/gmsh-2.1.1/contrib/MathEval'
>> g++ -g -O2 -o bin/gmsh -Llib -lGmshFltk -lGmshParser -lGmshGraphics 
>> -lGmshPlugin -lGmshMesh -lGmshGeo -lGmshPost
>> -lGmshCommon -lGmshDataStr -lGmshNumeric -lGmshParallel 
>> -lGmshNativeFileChooser -L/usr/local/lib -L/usr/X11R6/lib
>> -lfltk_images -lpng -lz -lfltk_jpeg -lfltk_gl -lGLU -lGL -lfltk -lm 
>> -lXext -lX11 -lpng -lGmshANN -lGmshNetgen -lGmshMathEval
>>
>> -lgsl -lgslcblas -L/usr/local/OpenCASCADE6.2.0//lib -lTKSTEP -lTKSTEP209 
>> -lTKSTEPAttr -lTKSTEPBase -lTKIGES -lTKXSBase -lTKOffset
>>
>>  -lTKFeat -lTKFillet -lTKBool -lTKShHealing -lTKMesh -lTKHLR -lTKBO 
>> -lTKPrim -lTKTopAlgo -lTKGeomAlgo -lTKBRep -lTKGeomBase -lTKG3d
>>
>> -lTKG2d -lTKAdvTools -lTKMath -lTKernel -lhdf5 -lz -lm
>> /usr/local/lib/libTKernel.so: undefined reference to `pthread_create'
>> /usr/local/lib/libTKernel.so: undefined reference to `pthread_detach'
>> /usr/local/lib/libTKernel.so: undefined reference to 
>> `pthread_mutex_trylock'
>> /usr/local/lib/libTKernel.so: undefined reference to `pthread_join'
>> collect2: ld returned 1 exit status
>> make: *** [link] Error 1
>>
>> I've made sure the OCC libs and inc dirs are accessible using symbolic 
>> links in OpenCASCADE6.2.0 dir following the thread 
>> ___http://www.geuz.org/pipermail/gmsh/2007/002498.html_
>>
>> I'm not sure what to make of this error so if anyone could help I would 
>> really appreciate it.
>>
>> I'm trying to compile gmsh-2.1.1 with OpenCascade 6.2.0 using gcc4.1.2.
>>
>> Thanks in advance and I can't wait try the mesher.
>>
>> Simon.
>>
>> P.S In the spirit of opensource, when I successfully install gmsh I'll 
>> happily share my installation process. 
>>
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-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine