How to specify c++0x flag on cent os

The command g++ -o myprogram myprogram.c -std=c++0x works well on ubuntu but when I try the same with centos it throws me an error cc1plus: error: unrecognized command line option "-std=c++0x". Eve开发者_运维技巧n google doesn't give the answer. Have anybody experienced it before? Does anybody know the solution?

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You most likely have different versions of the compiler on each system, run g++ --version to see which version you're running on each (-std=c++0x is only supported from version 4.4 of g++).

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In the CentOS repositories is something called g++44. Yum it, or grab it however makes the most sense to you.

Then, when you build, use g++44... with the rest of your switches. That might help, you never know.

If it works for you then you could remove g++ and symlink g++44.