Ubuntu 18.04 contains two versions of Openssl: openssl 1.1 and openssl 1.0.
Unfortunately, upstream MySQL now requires it to be linked against OpenSSL 1.1, where previously it used an internal ssl library. It is no longer possible to use openssl 1.0 concurrently with MySQL. What is requiring you to install libssl1.0-dev instead of libssl-dev? ** Changed in: mysql-5.7 (Ubuntu Bionic) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861304 Title: libmysqlclient-dev will not install with libssl1.0-dev To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-5.7/+bug/1861304/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs