GCC is 4.8 and supports c++11 on computer, but i can't install fastText by execution "python setup.py install". I'm very confused about it, so who can help me to solve it?

I have solved it! I think that the latest gcc should contain a latest g++, but it's not true. So I success to compile it after executing "yum install gcc-g++".
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I have solved it! I think that the latest gcc should contain a latest g++, but it's not true. So I success to compile it after executing "yum install gcc-g++".