just I installed OpenFoam on my linux box. The installation text script runs with one critical error:

gcc ...figure
WARNING: Conflicting installations:
foam settings: /home/nico/OpenFOAM/linux/gcc-4.0.1/bin/gcc
current path : /usr/bin/gcc
CRITICAL ERROR


Additionally, the compiler does not work properly:

nico@haydn:~/OpenFOAM/nico-1.2/run/tutorials/icoFoam > blockMesh . cavity
blockMesh: error while loading shared libraries: libstdc++.so.6: cannot open shared object file: No such file or directory

On my system gcc is already installed under /usr/bin, and it works fine.

I want OpenFoam (as any other application) use this compiler. How can I do that?

(BTW, why insists OpenFoam on its own compiler?
Sorry, but I can't see any sense in installing quite the same compiler on the same system twice...)

kind regards,

Nico Hoffmann

[eugene]

OpenFOAM frequently uses the very latest C++ features available in the gcc compiler. It is thus necessary to use an up to date version, so shipping it with the code ensures compatibility.

If your compiler in /usr/bin is gcc 4.0.1 or later and you really desperately want to use it, then you can tell OpenFOAM about its location by editing the .bashrc file (or .cshrc) in the main OpenFOAM directory. The variable that you need to change is WM_COMPILER_DIR.

Hello,
I have a similar problem in the sense that I already have a version of GCC and javac installed in /usr/bin/
Unfortunately these are not the same version as used in OpenFOAM so I have installed the GCC and JDK that was bundled with OpenFOAM. However, when I try to run the check, after sourcing OpenFOAM/.bashrc the old installations are still found first.
Is there a way to setup the .bashrc to overcome the issue of double installations of GCC and Java ?

[mattijs]

Have a look at the OpenFOAM-12.2/bashrc lines 117-120.

It will prefix the OpenFOAM WM_COMPILER_BIN to the path so should find the OpenFOAM one first.

Put some print statements in there to find out what is going on.

[nishant_hull]

I am also not been able to recompile the foam to run it in debug mode. I do not know what exactly is the problem. can any body tell me, is this because of gcc compiler or what?? i have two gcc compiler on my linux system. one default and one with the package. precompiled programs on my ststem is running quite ok. But so far I could not be able to run any own programm.

The error after recompiling using ./Allawake is :-

/home/343880/OpenFOAM/linux/paraview-2.4.4/include/vtkDataObject.h: In member function 'virtual void vtkDataObject::ReleaseDataFlagOn()':
/home/343880/OpenFOAM/linux/paraview-2.4.4/include/vtkDataObject.h:116: warning: use of old-style cast
/home/343880/OpenFOAM/linux/paraview-2.4.4/include/vtkDataObject.h: In member function 'virtual void vtkDataObject::ReleaseDataFlagOff()':
/home/343880/OpenFOAM/linux/paraview-2.4.4/include/vtkDataObject.h:116: warning: use of old-style cast
/home/343880/OpenFOAM/linux/paraview-2.4.4/include/vtkDataObject.h: In member function 'virtual void vtkDataObject::RequestExactExtentOn()':
/home/343880/OpenFOAM/linux/paraview-2.4.4/include/vtkDataObject.h:273: warning: use of old-style cast
/home/343880/OpenFOAM/linux/paraview-2.4.4/include/vtkDataObject.h: In member function 'virtual void vtkDataObject::RequestExactExtentOff()':
/home/343880/OpenFOAM/linux/paraview-2.4.4/include/vtkDataObject.h:273: warning: use of old-style cast
`/home/343880/OpenFOAM/OpenFOAM-1.4.1/lib/linuxGccDPDebug/libvtkFoam.so' is up to date.
make[3]: Leaving directory `/home/343880/OpenFOAM/OpenFOAM-1.4.1/applications/utilities/postProcessing/grap hics/PVFoamReader/vtkFoam'
+ cd PVFoamReader
+ mkdir -p Make/linuxGccDPDebug
+ cd Make/linuxGccDPDebug
+ cmake ../..
./Allwmake: line 6: cmake: command not found
+ make
make[3]: Entering directory `/home/343880/OpenFOAM/OpenFOAM-1.4.1/applications/utilities/postProcessing/grap hics/PVFoamReader/PVFoamReader/Make/linuxGccDPDebug'
make[3]: *** No targets specified and no makefile found. Stop.
make[3]: Leaving directory `/home/343880/OpenFOAM/OpenFOAM-1.4.1/applications/utilities/postProcessing/grap hics/PVFoamReader/PVFoamReader/Make/linuxGccDPDebug'
make[2]: *** [PVFoamReader] Error 2
make[2]: Leaving directory `/home/343880/OpenFOAM/OpenFOAM-1.4.1/applications/utilities/postProcessing/grap hics'
make[1]: *** [graphics] Error 2
make[1]: Leaving directory `/home/343880/OpenFOAM/OpenFOAM-1.4.1/applications/utilities/postProcessing'
make: *** [postProcessing] Error 2
+ '[' 0 = 1 -a '' = doc ']'