curl安装
问题1：
curl: error while loading shared libraries: libcurl.so.4: cannot open shared object file: No such file
解决方案：
ldconfig -v
ldconfig作用：
/sbin/ldconfig - configure dynamic linker run time bindings
-v Verbose mode. Print current version number, the name of each directory as it is scanned, and any links that are created.
Overrides quiet mode.
问题2：
ImportError: /usr/lib64/python2.6/site-packages/pycurl.so: undefined symbol: Curl_base64_encode
我只要pycurl.so它一个，所以进入pycurl-7.19.0\src
修改下
vim Makefile
PYINCLUDE=/usr/include/python2.6/
注意这儿需要 python-devel， 没安装的就安装吧（就当更新python玩吧）
yum install python-devel
OK， 编译下pycurl.so
make
cp /usr/lib64/python2.6/site-packages/pycurl.so /home/backup ##备份下之前，有问题也好恢复
cp ./pycurl.so /usr/lib64/python2.6/site-packages/pycurl.so
好了，运行下yum试试。
http://hi.baidu.com/newcloud/item/c8635bfa6cefeb0bd99e7270
