参考 http://www.cnblogs.com/csuftzzk/p/3435710.html 但按照这篇文章，编译会出错，所以部分路径有修改，.vimrc配置略不同；
syntastic插件效果不理想，经常误报，还有就是比较卡。
一、 准备
1. 安装cmake, python-dev
sudo apt-get install cmake python-dev
2. 安装最新的VIM
sudo add-apt-repository ppa:nmi/vim-snapshots sudo apt-get update sudo apt-get install vim
3. 下载Vundle, Vundle可以管理vim插件，很方便，更多可以参考 http://blog.csdn.net/codebistu/article/details/8257138
git clone https://github.com/gmarik/vundle.git ~/.vim/bundle/vundle
4. 下载完了vundle后，配置~/.vimrc文件如下，然后打开一个vim窗口，执行命令:BundleInstall， vundle会自动去网上将相关插件下载下来并安装好。要删除一个插件也很简单，先在~/.vimrc中移除该插件条目，然后进入vim执行命令:BundleClean。
set nocompatible " be iMproved
Bundle 'scrooloose/syntastic'
set rtp+=~/.vim/bundle/vundle/
call vundle#rc()
" let Vundle manage Vundle
" required!
Bundle 'gmarik/vundle'
" My bundles here:
"
" original repos on GitHub
Bundle 'tpope/vim-fugitive'
Bundle 'Lokaltog/vim-easymotion'
Bundle 'rstacruz/sparkup', {'rtp': 'vim/'}
Bundle 'tpope/vim-rails.git'
" vim-scripts repos
Bundle 'L9'
Bundle 'FuzzyFinder'
" non-GitHub repos
Bundle 'git://git.wincent.com/command-t.git'
" Git repos on your local machine (i.e. when working on your own plugin)
Bundle 'file:///Users/gmarik/path/to/plugin'
" ...
Bundle 'Valloric/YouCompleteMe'
filetype plugin indent on " required!
5. 编译LLVM+Clang的源代码
mkdir ~/llvmsrc cd ~/llvmsrc svn co http://llvm.org/svn/llvm-project/llvm/trunk llvm cd ~/llvmsrc/tools svn co http://llvm.org/svn/llvm-project/cfe/trunk clang cd ~/llvmsrc/llvm/projects svn co http://llvm.org/svn/llvm-project/compiler-rt/trunk compiler-rt svn co http://llvm.org/svn/llvm-project/test-suite/trunk test-suite cd ~/llvmsrc ./llvm/configure --enable-optimized make
二、配置，编译YouCompleteMe
1. 前面使用vundle已经下载好了YouCompleteMe的源码。
2. 编译
mkdir ~/ycm_build cd ~/ycm_build cmake -G "Unix Makefiles" ~/.vim/bundle/YouCompleteMe/cpp -DEXTERNAL_LIBCLANG_PATH=~/llvmsrc/llvm/Release+Asserts/lib/libclang.so make ycm_core make ycm_support_libs
3. 配置~/.vim/bundle/YouCompleteMe/cpp/ycm/.ycm_extra_conf.py。使用-isystem标志添加系统的头文件进行解析，而-I标志用于添加第三分的头文件进行解析。在flags最后增加如下：
'-isystem', '/usr/include', '-isystem', '/usr/include/c++/', '-isystem', '/usr/include/i386-linux-gnu/c++'
4. 此外，为了更好的提高补全效率，我们可以保留原先使用的用Ctags生成的tags文件，并在~/.vimrc中添加：let g:ycm_collect_identifiers_from_tag_files = 1.其中，在vim中使用 :echo tagfiles()可以查看当前使用的tags文件。
5. 我的.vimrc配置内容：
" 去掉讨厌的有关vi一致性模式，避免以前版本的一些bug和局限
set nocompatible
" bundle setting
au GUIEnter * call libcallnr("vimtweak.dll", "SetAlpha", 234)
filetype off " required!
set completeopt-=preview
set rtp+=~/.vim/bundle/vundle/
call vundle#rc()
" let Vundle manage Vundle
" required!
Bundle 'gmarik/vundle'
" My bundles here:
" original repos on GitHub
Bundle 'tpope/vim-fugitive'
Bundle 'Lokaltog/vim-easymotion'
Bundle 'rstacruz/sparkup', {'rtp': 'vim/'}
Bundle 'tpope/vim-rails.git'
" vim-scripts repos
Bundle 'L9'
Bundle 'FuzzyFinder'
" non-GitHub repos
Bundle 'git://git.wincent.com/command-t.git'
" Git repos on your local machine (i.e. when working on your own plugin)
Bundle 'file:///Users/gmarik/path/to/plugin'
Bundle 'Valloric/YouCompleteMe'
Bundle 'scrooloose/syntastic'
Bundle 'c.vim'
Bundle 'a.vim'
let g:ycm_collect_identifiers_from_tag_files = 1
let g:syntastic_ignore_files=[".*\.py$"]
let g:ycm_global_ycm_extra_conf = '~/.vim/bundle/YouCompleteMe/cpp/ycm/.ycm_extra_conf.py'
set backspace=indent,eol,start
set tabstop=4
set shiftwidth=4
set expandtab
set cindent
" 在编辑过程中，在右下角显示光标位置的状态行
set ruler
set showcmd
set hlsearch
set incsearch
set cino=g0:0 " let class's public: don't indent
" F12 run python
map <F12> :!/usr/bin/python %
" map <c-w><c-t> :Tlist<cr>
" map <c-w><c-m> :WMToggle<cr>
" map <c-w><c-f> :FirstExplorerWindow<cr>
" map <c-w><c-b> :BottomExplorerWindow<cr>
":set cscopequickfix=s-,c-,d-,i-,t-,e-
":cs add /home/broom/yeast/trunk/cscope.out /home/broom/yeast/trunk/
" let g:winManagerWindowLayout='FileExplorer|TagList'
":let Tlist_Use_Right_Window=1
":nmap wm :WMToggle<cr>
nnoremap <silent> <F3> :Grep<CR>
" 语法高亮度显示
syntax on
filetype plugin indent on
set viminfo='20,\"50
" 设置历史的行数
set history=1000
" Only do this part when compiled with support for autocommands
if has("autocmd")
" In text files, always limit the width of text to 78 characters
autocmd BufRead *.txt set tw=78
" When editing a file, always jump to the last cursor position
autocmd BufReadPost *
\ if line("'\"") > 0 && line ("'\"") <= line("$") |
\ exe "normal g'\"" |
\ endif
endif
" set bg=dark
" 显示行号
set nu
imap <c-w> <Esc>
autocmd FileType ruby,eruby set omnifunc=rubycomplete#Complete
filetype plugin on
"------------------------------------------------------------------------------
function! SET_PYTHON_IDENT()
set shiftwidth=2
set softtabstop=2
set tabstop=2
set backspace=2
set smarttab
endfunction
au FileType python,ruby :call SET_PYTHON_IDENT()
"c-support year date time
let g:C_FormatDate = '%Y-%m-%d'
let g:C_FormatTime = '%H:%M:%S'
let g:C_FormatYear = '%Y'
" Encoding related
set encoding=UTF-8
" set langmenu=zh_CN.UTF-8
" language message zh_CN.UTF-8
set fileencodings=ucs-bom,utf-8,cp936,gb18030,big5,euc-jp,euc-kr,latin1
set fileencoding=utf-8
set t_Co=256
colorscheme desertEx
"colorscheme evening
"colorscheme peaksea
"colorscheme blackboard " Ruby蓝色着色模式
"colorscheme molokai " Sublime Text着色模式
"colorscheme ubloh " 突出注释的艳丽着色模式
au GUIEnter * call libcallnr("vimtweak.dll", "SetAlpha", 234)