calc_rigidity might not run for RHEL6 and earlier because it needs gcc4.8.4 and RHEL6 comes with gcc4.4.x The fix could be to recompile calc_rigidity with an earler version of gcc.
calc_rigidity might not run for RHEL6 and earlier because it needs gcc4.8.4 and RHEL6 comes with gcc4.4.x
The fix could be to recompile calc_rigidity with an earler version of gcc.