net-snmp安装出错的问题！！！

我在linux(redhatas3.0)服务器上安装snmp时,到make这一步出错,提示:cannot find libbeecrypt.la ,然后查资说需要安装一些支持的文件：
beecrypt-devel-3.1.0-6.i386.rpm
elfutils-devel-0.108-1.i386.rpm
elfutils-libelf-devel-0.108-1.i386.rpm

但是我在安装这些rpm包的文件时又出错提示：

[root@localhost linux5.4]# rpm -ivh elfutils-devel-0.108-1.i386.rpm
warning: elfutils-devel-0.108-1.i386.rpm: V3 DSA signature: NOKEY, key ID 4f2a6fd2
error: Failed dependencies:
        elfutils = 0.108-1 is needed by elfutils-devel-0.108-1
        elfutils-libelf-devel = 0.108-1 is needed by elfutils-devel-0.108-1

请问各位老大问题，问题这是什么原因啊．在线急等．小弟先在这里谢过了！！！