Update GCC in centos 6.2

When qt5.1.0 is installed in centos, it cannot be started because it seems to be a problem with the GCC version, so it is necessary to update GCC.

1. Download the GCC source code:

Download URL: http://ftp.gnu.org/gnu/gcc/gcc-4.8.0/

Wget http://ftp.gnu.org/gnu/gcc/gcc-4.8.0/gcc-4.8.0.tar.bz2

2. decompress the file:

Tar jxvf gcc-4.8.0.tar.bz2

3. Download the dependencies required for compilation

CD gcc-4.8.0

./Contrib/download_prerequisites

CD ..

4. Create a compilation output directory

Mkdir gcc-build-4.8.0

5. Go to the directory and run the following command to generate the MAKEFILE file.

CD gcc-build-4.8.0

../Gcc-4.8.0/configure -- enable-checking = release -- enable-packages ages = C, C ++ -- disable-multilib

6. Execute the following command to compile

Make-J4

So far, the compilation process has been completed. Wait until the compilation is completed ....

7. Installation

Sudo make install

8. Check the GCC version.

GCC -- version