[Gmsh] Compiling gmsh with OCC

[gus.wolfgramm at xtra.co.nz]

Hi again David

I have looked at README.occ and it says I need the linux source of OCC which I can't seem to find at the OCC site. I've fired off an email asking for its whereabouts. Are you aware of how I might obtain it in the meantime? Also, the following from the afforementioned document has me wondering:

/***********************************************************
- if you're using Cygwin/Mingw32 (Windows) define

  export CC="gcc -mno-cygwin -DWNT=1 -DWIN32 -DHAVE_NO_DLL"
  export CXX="g++ -mno-cygwin -DWNT=1 -DWIN32 -DHAVE_NO_DLL"

***********************************************************/
I will be compiling with Mingw32 and want to know where I am to make this definition?

Also can I draw your attention to second part of my original message. Is what I am trying to do feasible? If not, as outlined, is there a way I should proceed? I suppose I should be looking at the gcc documentation with regards to building .a files and whether .lib files can be created from the the precursors (.o files?).

Cheers for your help guys!

Gustav 

---- Colignon David <David.Colignon at ulg.ac.be> wrote: 
> Hi Gustav,
> 
> you should have a look in doc/README.occ
> 
> after the ./configure step, you can also directly edit at hand the created
> "variables" file and modify the FLAGS line to point to the right include
> directories
> 
> Cheers,
> 
> Dave
> 
> 
> > Hi David
> >
> > Thanks for the reply. I did as you said and it configured fine. However
> > make
> > broke down during the part where the Geo library is being built,
> > specifically as
> > it parsed occIncludes.h and couldnt find a bunch of occ files (e.g
> > BRep_Tool.hxx). How can I point make in the direction of these files.? Btw
> > I am
> > using the win32 verison of occ 6.2 and not the linux version. Is this
> > signinificant?
> >
> > Cheers
> >
> > Gustav
> >
> > ---- Colignon David <David.Colignon at ulg.ac.be> wrote:
> >> > Hello
> >> >
> >> > This is my first post, so thanks for the opportunity. I am using
> >> Windows
> >> > XP Home.
> >> >
> >> > I have unsuccessfully tried to compile gmsh 2.0.7 with OCC support
> >> with
> >> > MinGW/MSys. I used --with-gsl-prefix=c:/msys/1.0/local
> >> > –with-fltk-prefix=c:/msys/1.0/local –enable-occ
> >> > –with-occ-prefix=c:/Program\ Files/OpenCascade/ros/win32 ….On the othr
> >> > hand, compiling with just gsl and fltk prefixes was successful. I have
> >> > attached the output of ./configure as well as the conf.log for the
> >> former.
> >> > If relevant, gmsh, gsl and fltk were installed in
> >> c:/msys/1.0/home/oem/
> >> > Hope this is sufficient information.
> >>
> >> Hi,
> >>
> >> I think configure doesn't like the space between Program and Files, the
> >> directory where you installed OCC
> >>
> >> from config.log :
> >>
> >> ...
> >> configure:5070: gcc -o conftest.exe -g -O2  -Lc:/Program
> >> Files/OpenCascade/ros/win32/lib -
> >> Lc:/msys/1.0/local -Lc:/msys/1.0/local/lib  conftest.c -lgslcblas -lm
> >> >&5
> >> gcc.exe: Files/OpenCascade/ros/win32/lib: No such file or directory
> >> ...
> >>
> >> can you try to move or reinstall OCC elsewhere ?
> >>
> >> Cheers,
> >>
> >> Dave
> >>
> >>
> >> --
> >> David Colignon, Ph.D.
> >> ELAP - Unité d'Electricité Appliquée
> >> Institut Montefiore B28
> >> Université de Liège
> >> 4000 LIEGE - BELGIQUE
> >> Tél: +32 (0)4 366 37 32
> >> Fax: +32 (0)4 366 29 10
> >> http://elap.montefiore.ulg.ac.be
> >> >
> >> > Finally, the point to this is that I am trying to make an application
> >> that
> >> > meshes imported STEP and IGES geometries for BEM analysis. I intend on
> >> > using the gmsh 2.0.7 mesh module to do this and am trying to extract
> >> the
> >> > relevant parts from the source. The import stage is based on the OCC
> >> > import/export example ’IE’ (VS solution - c# GUI, VC++ inner
> >> workings).
> >> > From one of the solution's VC++ projects I am trying to link to the
> >> gmsh
> >> > library. This I have built (without OCC support) using MinGW/MSys. The
> >> > library consists of a bunch of .a files (e.g. libGMeshGeo.a) which I
> >> think
> >> > are UNIX static library files and not .lib files as I was expecting.
> >> >
> >> > QUESTION:
> >> >
> >> > Can I link to these files from the application previously described?
> >> Are
> >> > they compatible for my purposes?
> >> >
> >> > Thanks for any help available. I am new to this kind of programming so
> >> > please forgive any glaring omissions.
> >> >
> >> > Gustav Wolfgramm
> >> >
> >> > p.s Go Emrates Team New Zealand in the America's Cup finals!!
> >> > _______________________________________________
> >> > gmsh mailing list
> >> > gmsh at geuz.org
> >> > http://www.geuz.org/mailman/listinfo/gmsh
> >> >
> >>
> >>
> >>
> >
> >
> > _______________________________________________
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> >
> 
>