mosquitto: error while loading shared libraries: libwebsockets.so.12: cannot open shared object file

wangshumin@centoshostnameKL1 lib]$ su
密码：
su: 密码不正确
[wangshumin@centoshostnameKL1 lib]$ su
密码：
[root@centoshostnameKL1 lib]# cd /etc/mosquitto
[root@centoshostnameKL1 mosquitto]# mosquitto -c /etc/mosquitto/mosquitto.conf -d
mosquitto: error while loading shared libraries: libwebsockets.so.12: cannot open shared object file: No such file or directory
[root@centoshostnameKL1 mosquitto]#  cat /etc/ld.so.conf
include ld.so.conf.d/*.conf
/home/wangshumin/mosquitto/libwebsockets-2.4.1/build/lib
[root@centoshostnameKL1 mosquitto]# mosquitto -c /etc/mosquitto/mosquitto.conf -d
mosquitto: error while loading shared libraries: libwebsockets.so.12: cannot open shared object file: No such file or directory
[root@centoshostnameKL1 mosquitto]# ldconfig
[root@centoshostnameKL1 mosquitto]# mosquitto -c /etc/mosquitto/mosquitto.conf -d
[root@centoshostnameKL1 mosquitto]# exit
exit
[wangshumin@centoshostnameKL1 lib]$ cat /etc/ld.so.conf
include ld.so.conf.d/*.conf
/home/wangshumin/mosquitto/libwebsockets-2.4.1/build/lib
[wangshumin@centoshostnameKL1 lib]$ mosquitto -c /etc/mosquitto/mosquitto.conf -d
[wangshumin@centoshostnameKL1 lib]$ sudo find / -name "libmosquitto.so.1"
[sudo] password for wangshumin: 
/usr/local/lib/libmosquitto.so.1
/home/wangshumin/mosquitto/mosquitto-1.4.14/lib/libmosquitto.so.1
[wangshumin@centoshostnameKL1 lib]$ su
密码：
[root@centoshostnameKL1 lib]# sudo echo "/home/wangshumin/mosquitto/mosquitto-1.4.14/lib">>/etc/ld.so.conf
[root@centoshostnameKL1 lib]# sudo echo "/usr/local/lib">>/etc/ld.so.conf
[root@centoshostnameKL1 lib]# ldconfig
[root@centoshostnameKL1 lib]# exit
exit
[wangshumin@centoshostnameKL1 lib]$ mosquitto -c /etc/mosquitto/mosquitto.conf -d
[wangshumin@centoshostnameKL1 lib]$ pwd
/home/wangshumin/mosquitto/libwebsockets-2.4.1/build/lib
[wangshumin@centoshostnameKL1 lib]$ cat /etc/ld.so.conf
include ld.so.conf.d/*.conf
/home/wangshumin/mosquitto/libwebsockets-2.4.1/build/lib
/home/wangshumin/mosquitto/mosquitto-1.4.14/lib
/usr/local/lib