c语言程序显示三叶草,csync2安装报错&解决

[root@file2 csync2-1.34]# yum -y install flex

Loaded plugins: fastestmirror

Loading mirror speeds from cached hostfile

* addons: mirrors.163.com

* base: mirrors.163.com

* extras: mirrors.163.com

* updates: mirrors.163.com

Setting up Install Process

Resolving Dependencies

–> Running transaction check

—> Package flex.x86_64 0:2.5.4a-41.fc6 set to be updated

–> Finished Dependency Resolution

Dependencies Resolved

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Package        Arch             Version                   Repository      Size

================================================================================

Installing:

flex           x86_64           2.5.4a-41.fc6             base           131 k

Transaction Summary

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Install       1 Package(s)

Upgrade       0 Package(s)