Updated autoconf optimization flags for OSX so that performance is more  consistent with other platforms
Updated autoconf optimization flags for OSX so that performance is more 
consistent with other platforms


acmorrow/pion-core,acmorrow/pion-core,acmorrow/pion-core,acmorrow/pion-core,acmorrow/pion-core,acmorrow/pion-core,acmorrow/pion-core