虽然比windows下的source insight差了不少，但是linux下凑合用还可以，虽然vim+cscope可以胜任短时间内代码量小的文件，但是像linux内核源代码级别的，为了省事（我可懒得去vim下找更多插件），还是装个sourcenav吧

简要的说 安装步骤：

wget http://svn.exactcode.de/t2/trunk/package/develop/sourcenav-ng/tk-lastevent.patch
wget http://nchc.dl.sourceforge.net/sourceforge/sourcenav/sourcenav-6.0.tar.gz

tar zxvf sourcenav-6.0.tar.gz
cp tk-lastevent.patch sourcenav-6.0
cd sourcenav-6.0
patch -p1 < tk-lastevent.patch
./configure
make
sudo make install

我安装的是最新的sourcenav-6.0
下载下来解压，我的路径是
sai@sai-laptop:~/pack/sourcenav-6.0/
再从下面地址拷贝补丁
http://bugs.gentoo.org/attachment.cgi?id=161242&action=edit
到/sourcenav-6.0/tk目录下保存为tk-8.4-lastevent.patch,然后在/sourcenav-6.0/tk目录下运行
patch -p0 -i tk-8.4-lastevent.patch

然后先要确保如下库安装了

sudo apt-get install libx11-dev

不然编译过程中会碰到下述错误
/root/tk8.4.16/unix/../generic/tk3d.c:1279: error: ‘TkBorder’ has no member named ‘resourceRefCount’
/root/tk8.4.16/unix/../generic/tk3d.c:1280: error: ‘Tk_FakeWin’ has no member named ‘display’
/root/tk8.4.16/unix/../generic/tk3d.c:1280: error: ‘Tk_FakeWin’ has no member named ‘screenNum’
/root/tk8.4.16/unix/../generic/tk3d.c:1280: error: ‘TkBorder’ has no member named ‘screen’
/root/tk8.4.16/unix/../generic/tk3d.c:1281: error: ‘Tk_FakeWin’ has no member named ‘atts’
/root/tk8.4.16/unix/../generic/tk3d.c:1281: error: ‘TkBorder’ has no member named ‘colormap’
/root/tk8.4.16/unix/../generic/tk3d.c:1301: error: ‘TkDisplay’ has no member named ‘borderTable’
/root/tk8.4.16/unix/../generic/tk3d.c:1301: error: ‘TkDisplay’ has no member named ‘borderTable’
/root/tk8.4.16/unix/../generic/tk3d.c:1306: error: ‘TkBorder’ has no member named ‘nextPtr’
。。。。。。

然后会到/sourcenav-6.0目录下
./configure
sudo make
sudo make install

启动用snavigator

注意，一开始如果没打补丁，直接编译安装的话会出现

Can't find a usable tk.tcl in the following directories:
    /usr/local/share/tk8.3

之类的错误。。。
这个时候最后把目录删掉，重新解压，完全重头来一遍，而不要偷懒打上补丁就make ,make install