+ - sudo apt-get install -qq g++-${GCC_VERSION}\r
+ - export CXX="g++-${GCC_VERSION}"\r
+ - wget -O boost_1_${BOOST_VERSION}_0.tar.bz2 http://sourceforge.net/projects/boost/files/boost/1.${BOOST_VERSION}.0/boost_1_${BOOST_VERSION}_0.tar.bz2/download\r
+ - tar xjf boost_1_${BOOST_VERSION}_0.tar.bz2\r
+ - cd boost_1_${BOOST_VERSION}_0\r
+ - ./bootstrap.sh\r
+ - ./b2 --with-thread --with-atomic --with-date_time --with-system --with-timer --stagedir=stage64 --toolset=gcc-${GCC_VERSION} address-model=64\r
+ - cd ..\r