compile mySQL plugin - mysql_config not found

[stryga42]

Thanks for looking it up. Yes, you are right it is exactly there.
I think I found the problem. Something screwed up the qtchooser setup and qmake executed in a partly invalid Qt environment. A simple export QT_SELECT="qt5.15.2" did the job. Now MySql (aka mariaDB) is recogized.

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Added after 4 minutes:

Additional comment: I tried the same thing on another Ubuntu 20.04 machine with Qt5.15.2. There compile did work there but during runtime the plugin thinks that the DB does not support transactions. Very weired... I'll close this thread anyway. Thank's for your effort! (And, please Qt team, provide a precompiled mariaDB plugin :-) )