Fedora 16安装 Emacs 笔记下：
1. 下载
当前最新版本是emacs-23.4 下载地址 http://ftp.gnu.org/pub/gnu/emacs/
2. 参考INSTALL，选择安装X lib (libXpm-devel)和一些图片依赖库(libjpeg-turbo-devel, giflib-devel, libpng-devel, libtiff-devel)
su -c "yum install 'libXpm-devel libjpeg-turbo-devel giflib-devel libtiff-devel'"
3. 解压src，在emacs-23.4目录下
./configure --prefix=/opt/emacs
4. make
5. sudo make install
6. 添加环境变量
export EMACS_HOME=/opt/emacs
export PATH=$ERLANG_HOME/bin:$EMACS_HOME/bin:$PATH
