Linux系统 rpm安装时老是有冲突，怎么办？

rpm -ivh perl-ExtUtils-MakeMaker-6.46-1.el5.rf.noarch.rpm
warning: perl-ExtUtils-MakeMaker-

file /usr/bin/instmodsh from install of perl-ExtUtils-MakeMaker-6.46-1.el5.rf.noarch conflicts with file from package perl-5.8.8-38.el5.x86_64
file /usr/share/man/man1/instmodsh.1.gz from install of perl-ExtUtils-MakeMaker-6.46-1.el5.rf.noarch conflicts with file from package perl-5.8.8-38.el5.x86_64
file /usr/share/man/man3/ExtUtils::Command.3pm.gz from install of perl-ExtUtils-MakeMaker-6.46-1.el5.rf.noarch conflicts with file from package perl-5.8.8-38.el5.x86_64

该机器不能上网更新，怎么解决呢，求指点？

perl-ExtUtils-MakeMaker-6.46-1.el5.rf.noarch
与已经安装在机器上的：
perl-5.8.8-38.el5.x86_64

有兼容性冲突。
两者不能共存，自己处理吧！

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