yum whatprovides can find package with specific command or lib, for example:

sudo yum whatprovides libmysqlclient*

1:mariadb-libs-5.5.56-2.el7.i686 : The shared libraries required for
                                 : MariaDB/MySQL clients
Repo        : base
Matched from:
Provides    : libmysqlclient.so.18
Provides    : libmysqlclient.so.18(libmysqlclient_16)
Provides    : libmysqlclient.so.18(libmysqlclient_18)

and

sudo yum install mariadb-libs-5.5.56-2.el7.i686

But I'm not sure is a good idea to install mysql-shell from src, when you can get with simple yum install mysql

yum whatprovides can find package with specific command or lib, for example:

sudo yum whatprovides libmysqlclient*

1:mariadb-libs-5.5.56-2.el7.i686 : The shared libraries required for
                                 : MariaDB/MySQL clients
Repo        : base
Matched from:
Provides    : libmysqlclient.so.18
Provides    : libmysqlclient.so.18(libmysqlclient_16)
Provides    : libmysqlclient.so.18(libmysqlclient_18)

and

sudo yum install mariadb-libs-5.5.56-2.el7.i686

But I'm not sure it's a good idea to install mysql-shell from src, when you can get with simple yum install mysql