编译openfst的时候一直报错，

 g++: internal compiler error: Killed (program cc1plus)

so,想到的便只能是升级GCC了，好在网上有一个repo是给GCC4.8用的

Raspberry Pi GCC 4.8 Source

1. 编辑/etc/apt/sources.list

 sudo vim /etc/apt/sources.list

添加下面的内容

deb http://mirrordirector.raspbian.org/raspbian/ wheezy main contrib non-free rpi
deb http://archive.raspbian.org/raspbian wheezy main contrib non-free rpi
# Source repository to add
deb-src http://archive.raspbian.org/raspbian wheezy main contrib non-free rpi
deb http://mirrordirector.raspbian.org/raspbian/ jessie main contrib non-free rpi
deb http://archive.raspbian.org/raspbian jessie main contrib non-free rpi
# Source repository to add
deb-src http://archive.raspbian.org/raspbian jessie main contrib non-free rpi

也就是源。。

2. 编辑/etc/apt/preferences

 sudo vim /etc/apt/preferences

插入

Package: *
Pin: release n=wheezy
Pin-Priority: 900
Package: *
Pin: release n=jessie
Pin-Priority: 300
Package: *
Pin: release o=Raspbian
Pin-Priority: -10

1. update

   sudo apt-get update

Raspberyy Pi GCC4.8 安装

 sudo apt-get install -t jessie gcc-4.8 g++-4.8

Install alternatives

sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.6 20
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 50
sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.6 20
sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.8 50

Raspberry Pi 查看GCC version

 sudo gcc --version

参考文章:GCC 4.8 ON RASPBERRY PI WHEEZY