Hi, g++ from GCC 4.4.7 does not accept -std=c++03 option. It accepts only -std=c++0x and -std=gnu++0x. CentOS 6.10 has GCC 4.4.7 and packages with -std=c++03 fail with 'cc1plus: error: unrecognized command line option "-std=c++03"' error. What is the best way to handle this problem? Thank you. -- Ryo ONODERA