Mac GNU compiler FIX
Mac GNU compiler FIX

Fix for the issue #350 https://github.com/simbody/simbody/issues/350

scamille/simbody,elkingtonmcb/simbody,robojukie/simbody,Gjacquenot/simbody,simbody/simbody,simbody/simbody,elkingtonmcb/simbody,Gjacquenot/simbody,scamille/simbody,robojukie/simbody,scamille/simbody,robojukie/simbody,Gjacquenot/simbody,elkingtonmcb/simbody