Resolving dependencies...
Starting     mysql-0.2.1
Failed to install mysql-0.2.1
Build log ( /home/builder/.cabal/logs/ghc-8.10.2/mysql-0.2.1-2FS2Ci7mGzj9JAROJyc5dM.log ):
cabal: Entering directory '/tmp/cabal-tmp-438/mysql-0.2.1'
[1 of 1] Compiling Main             ( /tmp/cabal-tmp-438/mysql-0.2.1/dist/setup/setup.hs, /tmp/cabal-tmp-438/mysql-0.2.1/dist/setup/Main.o )
Linking /tmp/cabal-tmp-438/mysql-0.2.1/dist/setup/setup ...
Configuring mysql-0.2.1...
setup: The program 'mysql_config' is required but it could not be found

cabal: Leaving directory '/tmp/cabal-tmp-438/mysql-0.2.1'
cabal: Error: some packages failed to install:
mysql-0.2.1-2FS2Ci7mGzj9JAROJyc5dM failed during the configure step. The
exception was:
ExitFailure 1