[chenqu]

在安装su第二步（make xtinstall)出现如下错误信息，如何改正错误，请高手指导。
make[2]: Entering directory `/home/exp_3/jianjicx/cwp_su/src/Xtcwp/main'
cc -I/home/exp_3/jianjicx/cwp_su/include -I/usr/X11R6/include -O3 -Wall -Wno-long-long -ansi -pedantic -D_POSIX_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -DGNU_SOURCE -DCWP_LITTLE_ENDIAN xgraph.c -L/home/exp_3/jianjicx/cwp_su/lib -lXtcwp -lpar -lcwp -L/usr/X11R6/lib -lXt -lX11 -lm -o /home/exp_3/jianjicx/cwp_su/bin/xgraph
/usr/bin/ld: skipping incompatible /usr/X11R6/lib/libXt.so when searching for -lXt
/usr/bin/ld: skipping incompatible /usr/X11R6/lib/libXt.a when searching for -lXt
/usr/bin/ld: cannot find -lXt
collect2: ld returned 1 exit status
make[2]: [/home/exp_3/jianjicx/cwp_su/bin/xgraph] Error 1 (ignored)
chmod: cannot access `/home/exp_3/jianjicx/cwp_su/bin/xgraph': No such file or directory
make[2]: *** [/home/exp_3/jianjicx/cwp_su/bin/xgraph] Error 1
make[2]: Leaving directory `/home/exp_3/jianjicx/cwp_su/src/Xtcwp/main'
make[1]: *** [INSTALL] Error 2
make[1]: Leaving directory `/home/exp_3/jianjicx/cwp_su/src/Xtcwp'
make: *** [xtcwp] Error 2

[ppp]

/usr/bin/ld: skipping incompatible /usr/X11R6/lib/libXt.so when searching for -lXt
/usr/bin/ld: skipping incompatible /usr/X11R6/lib/libXt.a when searching for -lXt
/usr/bin/ld: cannot find -lXt
说明是图形库不兼容吧 有可能是在你默认装操作系统时没有安装
看看这个包mesa-LIBGLU装了没有。此外还需要从网上下载freeglut，glu,glut包共同构建三维绘图的基础。(opengl绘图)