Upgrading the gcc/g++ compiler of the Raspberry Pi to 4.8

First of all, update your Raspberry Pi (avoid compiling the wrong version resulting in no insert)
sudo apt-get updatesudo apt-get upgradesudo apt-get dist-upgrade sudo rpi-update

Update gcc and g++:

sudoApt-getInstall GCC-4.8g++-4.8 sudoUpdate-alternatives--Install/usr/bin/GCC GCC/usr/bin/GCC-4.6  -sudoUpdate-alternatives--Install/usr/bin/GCC GCC/usr/bin/GCC-4.8  -sudoUpdate-alternatives--Install/usr/bin/g++ g++/usr/bin/g++-4.6  -sudoUpdate-alternatives--Install/usr/bin/g++ g++/usr/bin/g++-4.8  -

Upgrading the gcc/g++ compiler of the Raspberry Pi to 4.8