make出错，该如何解决

frog555

出错提示为如下
[root@www fcitx-3.1.1]# make
make  all-recursive
make[1]: Entering directory `/home/frog555/downloads/fcitx-3.1.1'
Making all in doc
make[2]: Entering directory `/home/frog555/downloads/fcitx-3.1.1/doc'
make[2]: Nothing to be done for `all'.
make[2]: Leaving directory `/home/frog555/downloads/fcitx-3.1.1/doc'
Making all in tools
make[2]: Entering directory `/home/frog555/downloads/fcitx-3.1.1/tools'
gcc  -g -O2 -INONE -Wall   -o mb2txt  mb2txt.o  -LNONE -lX11
/usr/bin/ld: cannot find -lX11
collect2: ld returned 1 exit status
make[2]: *** [mb2txt] Error 1
make[2]: Leaving directory `/home/frog555/downloads/fcitx-3.1.1/tools'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/frog555/downloads/fcitx-3.1.1'
make: *** [all] Error 2


这是怎么一回事｀｀｀帮忙解决一下

BBDD

你没装x11的库