[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 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 ++