Problem building GEANT4 on SL7.8

Getting Started
1

Hello all!
I was trying to locally install GEANT4 10.6 on Scientific Linux but i have faced a weird issue while building the software…
I have the same problem that is shown here: Error when making geant4. I installed gcc version 8.2 locally (i don’t have any root privileges on my server )
The default version of my gcc was 4.8.2 which is far below the required version. I already set up (locally) gcc 8.2, in fact when typing gcc --version in the terminal the output is gcc 8.2.0, as expected.

However, i don’t get it why the older version is used during the building process…

I would like trying to tell my system to use gcc 8.2 instead of looking and older version of GEANT4 that allows a version <=4.8.2. If you guys have some advises to share, i will appreciate them all.

the flags i used were:

cmake -DCMAKE_INSTALL_PREFIX=/emph/app/ydeniz/GEANT4/geant4.10.6/geant4.10.06-install /emph/app/ydeniz/GEANT4/geant4.10.6/geant4.10.06.p02

cmake -DGEANT4_INSTALL_DATA=ON .

make -j1 VERBOSE=1

i attach a section of the output of the building process that got the errorproblemsbulding.txt (5.0 KB)

2

What’s the output when running cmake to do the configuration as that will show the compilers picked up. It’s possible (likely) the install of gcc has not created a cc link to gcc which system packages often do, and that’s causing CMake to ignore the custom install. If you’ve confirmed that running:

$ gcc --version
...
$ g++ --version

are the versions you want, then you can run cmake as:

$ CC=gcc CXX=g++ cmake <otherargs>

and it should pick up the right compiler.

3

@bmorgan sorry for the late reply, but Thank you a lot!!! It works, now i’m trying to run some examples. :grin:

Finally, Just another question… Do i have to add the CC and CXX flags each time i run make or cmake for Geant4!

Cheers, Yael.