[CentOS] How to Solve gcc version conflicts?

Today, I encountered a problem that is quite difficult. On centos, I used yum to install the compiling environment and run:

Yum-y install make gcc-c ++ kernel-devel m4 ncurses-devel openssl-devel

As a result, the compilation cocos2d-x has an error:

cc1plus: error: unrecognized command line option "-std=c++11"

I Googled and confirmed that this error was caused by a low gcc version.

View the gcc version:

Gcc -- version

System display:

Gcc (GCC) 4.8.2

I googled again and confirmed that this version supports c ++ 11.

But the compilation error for the cocos2d-x does occur after the yum command is run.

I searched gcc globally:

Find/-name gcc

There are so many gcc:

/Usr/lib/gcc
/Usr/local/lib/gcc
/Usr/local/bin/gcc
/Usr/local/libexec/gcc
/Usr/bin/gcc

Run again:

/Usr/bin/gcc -- version

Gcc (GCC) 4.4.7-4

/Usr/local/bin/gcc -- version

Gcc (GCC) 4.8.2

It seems that there are indeed two gcc instances on this machine. The shell runs/usr/local/bin/gcc, but cocos2dx make uses/usr/bin/gcc (why is the path inconsistent? The reason is unclear)

The solution is run;

Mv/usr/bin/gcc/usr/bin/gcc4.4.7

Ln-s/usr/local/bin/gcc/usr/bin/gcc

In addition, the commands g ++, cc, and c ++ should also be modified.

Mv/usr/bin/g ++ 4.4.7

Ln-s/usr/local/bin/g ++/usr/bin/g ++

Mv/usr/bin/cc/usr/bin/cc4.4.7

Ln-s/usr/local/bin/cc/usr/bin/cc

Mv/usr/bin/c ++ 4.4.7

Ln-s/usr/local/bin/c ++/usr/bin/c ++