OpenFOAM 1.6 x64 on Archlinux

Download :

mkdir ~/OpenFOAM
cd ~/OpenFOAM

wget http://downloads.sourceforge.net/project/foam/foam/1.6/OpenFOAM-1.6.General.gtgz?use_mirror=freefr http://downloads.sourceforge.net/project/foam/foam/1.6/OpenFOAM-1.6.linux64GccDPOpt.gtgz?use_mirror=switch http://downloads.sourceforge.net/project/foam/foam/1.6/ThirdParty-1.6.General.gtgz?use_mirror=ovh http://downloads.sourceforge.net/project/foam/foam/1.6/ThirdParty-1.6.linux64Gcc.gtgz?use_mirror=switch

Unpacking:

tar xzf OpenFOAM-1.6.General.gtgz
tar xzf OpenFOAM-1.6.linux64GccDPOpt.gtgz
tar xzf ThirdParty-1.6.General.gtgz
tar xzf ThirdParty-1.6.linux64Gcc.gtgz

Add this line to your ~/.bashrc:

. $HOME/OpenFOAM/OpenFOAM-1.6/etc/bashrc