boost_b2_name = boost_base_name+os.sep+'b2'
boost_url = 'http://downloads.sourceforge.net/project/boost/boost/'+boost_version+'/'+boost_arch_name+'?r=&ts=1421801329&use_mirror=iweb'
boost_b2_name = boost_base_name+os.sep+'b2'
boost_url = 'http://downloads.sourceforge.net/project/boost/boost/'+boost_version+'/'+boost_arch_name+'?r=&ts=1421801329&use_mirror=iweb'