I have Ubuntu 10.04 32-bit with gcc 4.4.3 currently installed on it. I want to upgrade it to gcc 4.6.1.

  1. How to update using Ubuntu Package Manager:

    apt-get upgrade/install
  2. As a second option I downloaded the latest gcc snapshot file from:


How do I configure, compile, and install it?


3 Answers 3


I think you can get it by adding this PPA to your repositories:


You can add the PPA by running

sudo add-apt-repository ppa:ubuntu-toolchain-r/test

After it's in the repositories (and after running apt-get update) you should be able to either 1) update to the latest version using apt-get upgrade, or possibly 2) you'll have it available as a separate package you need to you'll need to apt-get install. I'm not sure which is the case with this package.

Further information: Guide on how to add a PPA to your repositories.

  • 4
    Did not work. After sudo add-apt-repository ppa:ubuntu-toolchain-r/test and sudo apt-get update, both sudo apt-get upgrade gcc and sudo apt-get upgrade g++-4.7 did nothing. I have a stock 11.10 64bit install.
    – voltrevo
    Dec 23, 2011 at 21:44

Add https://launchpad.net/~ubuntu-toolchain-r/+archive/test to your repositories by running:

sudo add-apt-repository ppa:ubuntu-toolchain-r/test

Then follow the steps on AskUbuntu to map gcc to the version you just installed.

In our case, you want to run:

sudo apt-get update
sudo apt-get install gcc-4.6
sudo apt-get install g++-4.6
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.6 20
sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.6 20
sudo update-alternatives --config gcc
sudo update-alternatives --config g++
  • 1
    +1, this worked for me. The last line needs code formated but it wasn't a big enough edit to allow the change.
    – Nick
    Apr 26, 2012 at 17:49

You don't get latest anything on LTS with the package manager. It's supposed to be stable with backported security updates. I'm not a fan of updating distros, I just reinstall and copy ~/

make install  

is the general procedure. Read the options in the configure script...you have to have a version installed to compile a new one. make install will probably mangle your current install.

suggestion: if you want "newest" then use "newest" - that's 11.10 at this point I think.

  • Have you mentioned updating Ubunut itself. That's not what I am looking for. I am looking to upgrade gcc installed on my ubuntu.
    – goldenmean
    Jul 15, 2011 at 6:44
  • not a good idea and it may cause many problems later. Jul 15, 2011 at 6:47

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