[Gmsh] Compiling Gmsh with opencascade

[David Colignon]

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.
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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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