如何能编译通过H.323的pwlib库？

JNUAllen

我在网上下载了pwlib库，在RED HAT9.0上进行编译。但是根据提示却怎么也编译不通过，请大家帮忙看看，这是README的内容：
If you have not installed PWLib in your home directory (~/pwlib) then you will have to define the environment variable PWLIBDIR to point to the correct directory
You have not set the LD_LIBRARY_PATH environment variable. Below are examples for some common shells
Example environment for sh/bash:

PWLIBDIR=$HOME/pwlib
export PWLIBDIR
OPENH323DIR=$HOME/openh323
export OPENH323DIR
LD_LIBRARY_PATH=$PWLIBDIR/libOPENH323DIR/lib
export LD_LIBRARY_PATH
这些应该怎么设呀？是用PATH = "$PATH:..."之类的设吗？但是我按照他上面说的设完之后，ls命令都不好用，更别说什么make了。
请大家指点一下，谢谢