Ubuntu 13.10 安装GCC 4.8.2报错

参考Ubuntu 12.04 & 13.04 安装 GCC4.8.1 , 始终报错:

The following packages have unmet dependencies:
 gcc-4.8 : Depends: binutils (>= 2.23.90.20131017) but
2.23.52.20130913-0ubuntu1 is to be installed

最后找到方法了:

http://askubuntu.com/questions/424868/cannot-install-gcc-4-8-because-of-unmet-dependencies

sudo apt-get install ppa-purge 
sudo ppa-purge ppa:ubuntu-toolchain-r/test
sudo apt-get update
sudo apt-get install gcc-4.8