Trying to build MySQL++ 3.2.2 against MariaDB 10.2.6 causes a build failure:

./lib/dbdriver.cpp: In member function 'bool mysqlpp::DBDriver::set_option(unsigned int, bool)':
./lib/dbdriver.cpp:260:10: error: 'CLIENT_LONG_PASSWORD' was not declared in this scope
    (o >= CLIENT_LONG_PASSWORD) &&
          ^~~~~~~~~~~~~~~~~~~~
./lib/dbdriver.cpp:260:10: note: suggested alternative: 'CLIENT_LONG_FLAG'
    (o >= CLIENT_LONG_PASSWORD) &&
          ^~~~~~~~~~~~~~~~~~~~
          CLIENT_LONG_FLAG

In this new version of the MariaDB library, the CLIENT_LONG_PASSWORD flag was dropped. It was already marked as obsolete in previous versions of MariaDB.

Is it safe to just drop this test in MySQL++ code?

Downstream (Fedora) bug: https://bugzilla.redhat.com/show_bug.cgi?id=1471139 . There's a patch from Augusto Caringi posted there:

https://bugzilla.redhat.com/attachment.cgi?id=1298334

which should fix this.

Fixed in [e5f2c3d83f].