How to install GCC 4.7 on Lubuntu 11.10?

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http://askubuntu.com – I installed Lubuntu 11.10 and I installed build-essential with this command: sudo apt-get install build-essential Now I have gcc 4.6 I read on some forum that adding the next PPA I'll be able to install gcc 4.7: sudo add-apt-repository ppa:ubuntu-toolchain-r/test I did that, then ran: sudo apt-get update sudo apt-get install gcc-4.7 But my machine can't find the gcc-4.7 package? Any suggestion? (HowTos)