php扩展event安装 ibevent_openssl 未找到

NOTICE: PHP message: PHP Warning: PHP Startup: Unable to load dynamic library '/www/server/php/80/lib/php/extensions/no-debug-non-zts-20200930/event.so' (tried: /www/server/php/80/lib/php/extensions/no-debug-non-zts-20200930/event.so (libevent_openssl-2.1.so.6: cannot open shared object file: No such file or directory), /www/server/php/80/lib/php/extensions/no-debug-non-zts-20200930//www/server/php/80/lib/php/extensions/no-debug-non-zts-20200930/event.so.so (/www/server/php/80/lib/php/extensions/no-debug-non-zts-20200930//www/server/php/80/lib/php/extensions/no-debug-non-zts-20200930/event.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0     提示libevent_openssl 未找到