报错如下：
显示完下面信息之后，就显示：
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Segmentation fault (core dumped)
解决办法：
1、通过命令 locate terminal.c查找到我们的这个文件
[root@localhost mysql-8.0.18]# locate terminal.c
/opt/mysql-8.0.18/extra/libedit/terminal.c
/opt/mysql-8.0.18/extra/libedit/CMakeFiles/edit.dir/terminal.c.o
2、修改文件/opt/mysql-8.0.18/extra/libedit/terminal.c，将 area = buf;改为 area = NULL;
3、重新再编译的目录下重新make和make install
4、最后重启mysql
[root@localhost mysql-8.0.18]# mysql -uroot -hlocalhost -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.18
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
mysql> 5、此时就能登录了
