Upgrade GCC compilers under Redhat

In a network environment, the use of the GCC source code to compile the way to upgrade the GCC version, so you need to have a GCC compiler.

To get the gcc-4.9.2 package:

wget http://gcc.skazkaforyou.com/releases/gcc-4.9.2/gcc-4.9.2.tar.gz

Unzip:

TAR-ZXVF gcc-4.9.2.tar.gz

CD gcc-4.9.2

execution: ./contrib/download_prerequisites (This magical script file will help us to download, configure, and install dependent libraries, saving us a lot of time and effort.) ）

Create the output directory and go to the directory:

mkdir Gcc-4.9.2-build

CD Gcc-4.9.2-build

perform: .. /configure--disable-multilib--enable-languages=c,c++

Compiling:make

Install:make install

authentication:gcc-v; or g++-V

Pro-Test is possible! Ok!

Upgrade GCC compilers under Redhat