Install gcc4.8.1 on Ubuntu 12.04 & 13.04

Finally, the complete implementation of C ++ 11 GCC 4.8.1.

Upgrade your system.

The following steps install gcc4.8.1 with content from: http://askubuntu.com/questions/312620/how-do-i-install-gcc-4-8-1-on-ubuntu-13-04

First install a software

apt-get install python-software-properties

Then

sudo add-apt-repository ppa:ubuntu-toolchain-r/testsudo apt-get updatesudo update-alternatives --remove-all gcc sudo update-alternatives --remove-all g++sudo apt-get install gcc-4.8sudo apt-get install g++-4.8sudo apt-get install gcc-4.8-multilibsudo apt-get install g++-4.8-multilibsudo apt-get install gcc-4.8-docsudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 20sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.8 20sudo update-alternatives --config gccsudo update-alternatives --config g++sudo apt-get updatesudo apt-get upgrade -ysudo apt-get dist-upgrade

Check with GCC -- version, which is 4.8.1.

gcc --versiongcc (Ubuntu 4.8.1-2ubuntu1~13.04) 4.8.1Copyright (C) 2013 Free Software Foundation, Inc.This is free software; see the source for copying conditions.  There is NOwarranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

If the/usr/bin/C ++ not found error occurs during compilation

Create two links to solve the problem:

ln -s /usr/bin/g++ /etc/alternatives/c++ln -s /etc/alternatives/c++ /usr/bin/c++

Similarly, when CC cannot be found, a link is also created:

ln -s /usr/bin/gcc /etc/alternatives/ccln -s /etc/alternatives/cc /usr/bin/cc

You can run the following command to find the installed files:

dpkg -L gcc-4.8/./usr/usr/bin/usr/bin/gcc-ranlib-4.8/usr/bin/gcov-4.8/usr/bin/gcc-ar-4.8/usr/bin/gcc-nm-4.8/usr/bin/gcc-4.8/usr/lib/usr/lib/gcc/usr/lib/gcc/x86_64-linux-gnu/usr/lib/gcc/x86_64-linux-gnu/4.8/usr/lib/gcc/x86_64-linux-gnu/4.8/lto1/usr/lib/gcc/x86_64-linux-gnu/4.8/lto-wrapper/usr/lib/gcc/x86_64-linux-gnu/4.8/collect2/usr/lib/gcc/x86_64-linux-gnu/4.8/libgomp.spec/usr/lib/gcc/x86_64-linux-gnu/4.8/libitm.spec/usr/share/usr/share/doc/usr/share/doc/gcc-4.8-base/usr/share/doc/gcc-4.8-base/README.ssp/usr/share/doc/gcc-4.8-base/gomp/usr/share/doc/gcc-4.8-base/gomp/changelog.gz/usr/share/doc/gcc-4.8-base/changelog.gz/usr/share/doc/gcc-4.8-base/gcc/usr/share/doc/gcc-4.8-base/gcc/changelog.gz/usr/share/doc/gcc-4.8-base/NEWS.html/usr/share/doc/gcc-4.8-base/README.Bugs/usr/share/doc/gcc-4.8-base/test-summary.gz/usr/share/doc/gcc-4.8-base/itm/usr/share/doc/gcc-4.8-base/itm/changelog.gz/usr/share/doc/gcc-4.8-base/quadmath/usr/share/doc/gcc-4.8-base/quadmath/changelog.gz/usr/share/doc/gcc-4.8-base/NEWS.gz/usr/share/man/usr/share/man/man1/usr/share/man/man1/gcov-4.8.1.gz/usr/share/man/man1/gcc-nm-4.8.1.gz/usr/share/man/man1/gcc-4.8.1.gz/usr/share/man/man1/gcc-ar-4.8.1.gz/usr/share/man/man1/gcc-ranlib-4.8.1.gz/usr/bin/x86_64-linux-gnu-gcc-ranlib-4.8/usr/bin/x86_64-linux-gnu-gcc-4.8/usr/bin/x86_64-linux-gnu-gcc-nm-4.8/usr/bin/x86_64-linux-gnu-gcc-ar-4.8/usr/share/doc/gcc-4.8/usr/share/man/man1/x86_64-linux-gnu-gcc-4.8.1.gz