[Chandler]

Hi！
I want to install OpenFoam on a machine with Redhat 4.1.2, but the Gcc version of Redhat is 4.1.2. an other Gcc version is installed in path: /public/source/gcc-source/gcc-4.7.1/gcc_install/, but i dont know how to use it.

i try to install gcc-4.6.2 in the thirdparty directory, but after installation, i type "gcc --version", it showed gcc-4.1.2.
How can i do in this situation?

foamInstallationTest is shown as:

Checking basic setup...
-------------------------------------------------------------------------------
Shell: bash
Host: ln0
OS: Linux version 2.6.18-194.el5
-------------------------------------------------------------------------------

Checking main OpenFOAM env variables...
-------------------------------------------------------------------------------
Environment_variable Set_to_file_or_directory Valid Crit
-------------------------------------------------------------------------------
$WM_PROJECT_INST_DIR /locallustre/home/caijiejin/OpenFOAM yes yes
$WM_PROJECT_USER_DIR ...e/caijiejin/OpenFOAM/caijiejin-2.2.0 no no
$WM_THIRD_PARTY_DIR .../caijiejin/OpenFOAM/ThirdParty-2.2.0 yes yes
-------------------------------------------------------------------------------

Checking the OpenFOAM env variables set on the PATH...
-------------------------------------------------------------------------------
Environment_variable Set_to_file_or_directory Valid Path Crit
-------------------------------------------------------------------------------
$WM_PROJECT_DIR ...me/caijiejin/OpenFOAM/OpenFOAM-2.2.0 yes yes yes
$FOAM_APPBIN ....2.0/platforms/linux64Gcc46DPOpt/bin no yes
$FOAM_SITE_APPBIN ....2.0/platforms/linux64Gcc46DPOpt/bin no no
$FOAM_USER_APPBIN ....2.0/platforms/linux64Gcc46DPOpt/bin no no
$WM_DIR ...jiejin/OpenFOAM/OpenFOAM-2.2.0/wmake yes yes yes
-------------------------------------------------------------------------------

Checking the OpenFOAM env variables set on the LD_LIBRARY_PATH...
-------------------------------------------------------------------------------
Environment_variable Set_to_file_or_directory Valid Path Crit
-------------------------------------------------------------------------------
$FOAM_LIBBIN ....2.0/platforms/linux64Gcc46DPOpt/lib no yes
$FOAM_SITE_LIBBIN ....2.0/platforms/linux64Gcc46DPOpt/lib no no
$FOAM_USER_LIBBIN ....2.0/platforms/linux64Gcc46DPOpt/lib no no
$MPI_ARCH_PATH ...platforms/linux64Gcc46/openmpi-1.6.3 no yes
-------------------------------------------------------------------------------

Third party software
-------------------------------------------------------------------------------
Software Version Location
-------------------------------------------------------------------------------
flex /usr/bin/flex
ERROR: gcc version is too old for this release of OpenFOAM
User version : 4.1.2
Minimum required: 4.3.2
gcc 4.1.2 /usr/bin/gcc
gzip 1.3.5 /bin/gzip
tar 1.15.1 /bin/tar
icoFoam
WARNING: Conflicting installations:
OpenFOAM settings : /locallustre/home/caijiejin/OpenFOAM/OpenFOAM-2.2.0/platforms/linux64Gcc46DPOpt/bin/icoFoam
current path :
CRITICAL ERROR
-------------------------------------------------------------------------------

Summary
-------------------------------------------------------------------------------
The system test has evoked 1 fatal error(s).
The foam installation contains 1 critical error(s).
Review the output for warning messages and consult
the installation guide for troubleshooting.
Done


anyone helps? Thank you!