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终于有了完整实现C++11的GCC 4.8.1.
给自己的系统升级吧。
下面的步骤可以在Ubuntu 13.04下安装GCC 4.8.1,
sudo add-apt-repository ppa:ubuntu-toolchain-r/test
sudo update-alternatives –remove-all gcc
sudo update-alternatives –remove-all g++
sudo apt-get install gcc-4.8
sudo apt-get install g++-4.8
sudo update-alternatives –install /usr/bin/gcc gcc /usr/bin/gcc-4.8 20
sudo update-alternatives –install /usr/bin/g++ g++ /usr/bin/g++-4.8 20
sudo update-alternatives –config gcc
sudo update-alternatives –config g++
sudo apt-get update
sudo apt-get upgrade -y
sudo apt-get dist-upgrade
最后用gcc –version检查一下，果然是4.8.1.
gcc –version
gcc (Ubuntu 4.8.1-2ubuntu1~13.04) 4.8.1
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
推荐阅读：
Ubuntu 12.04嵌入式交叉编译环境arm-linux-GCC搭建过程图解 http://www.linuxidc.com/Linux/2013-06/85902.htm
Ubuntu 12.10安装交叉编译器arm-none-linux-gnueabi-GCC http://www.linuxidc.com/Linux/2013-03/82016.htm
Ubuntu下Vim+GCC+GDB安装及使用 http://www.linuxidc.com/Linux/2013-01/78159.htm
Ubuntu下两个GCC版本切换 http://www.linuxidc.com/Linux/2012-10/72284.htm
更多Ubuntu相关信息见Ubuntu 专题页面 http://www.linuxidc.com/topicnews.aspx?tid=2
