undefined symbol 问题已解决。其中包含了一些有关编译链接的知识，让我增长了点学识。

标准解答见Python手册，Extending and Embedding，5.6 Linking Requirements 
具体见：
http://blog.csdn.net/jq0123/archive/2006/10/19/1340839.aspx


金庆 http://blog.csdn.net/jq0123
2006-10-19


======= 2006-10-19 09:57:00 您在来信中写道：=======

>我用
>g++ testpy.cpp -I/usr/include/python2.2 -L/usr/lib/python2.2/config -lpython2.2 -lpthread -ldl -lutil
>
>运行时有错误，是Python import时的错误，改为一个“print 'Hello world!'”就可以了。
>Traceback (most recent call last):
>  File "", line 1, in ?
>ImportError: /usr/lib/python2.2/lib-dynload/timemodule.so: undefined symbol: Pyg
>
>
= = = = = = = = = = = = = = = = = = = =