小菜下载一个C源代码进行编译，报如下错误：
checking for IceConnectionNumber in -lICE... yes
checking for XShapeQueryVersion in -lXext... no
configure: error: Failed to locate the Xext library.
Use --without-x if you want to build the command-line version of Cluster 3.0.
弱弱的问一下“ Xext library”怎么安装啊？