Drogon cannot detect MySQL on Fedora (MySql was not found)

I’m trying to build a C++ backend using Drogon with MySQL support, but Drogon fails to detect MySQL during CMake configuration.

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Environment

Fedora (latest)

GCC 15.2.1

CMake (recent)

Drogon 1.9.12

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Problem

When running CMake for Drogon:

cmake ..

I get:

-- MySql was not found.

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MySQL installation

I installed MySQL using:

sudo dnf install mysql-community-devel

The client library exists:

ls /usr/lib64/mysql/libmysqlclient.so

Output:

/usr/lib64/mysql/libmysqlclient.so

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pkg-config

MySQL is visible through pkg-config:

pkg-config --libs mysqlclient

Output:

-L/usr/lib64/mysql -lmysqlclient

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Headers

Headers are located at:

/usr/include/mysql

However, I suspect these may not be the correct MySQL headers.

For example:

grep -R "mysql_real_query_start" /usr/include/mysql

Returns nothing.

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What I tried

I attempted several approaches:

Reinstall MySQL dev packages

Remove MariaDB-related packages

Force MySQL paths in CMake

cmake .. \ -DMYSQL_INCLUDE_DIR=/usr/include/mysql \ -DMYSQL_LIBRARIES=/usr/lib64/mysql/libmysqlclient.so

Result:

MySql was not found.

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Use MySQL tarball (custom headers/libs)

cmake .. \ -DCMAKE_INCLUDE_PATH=~/Downloads/mysql/include \ -DCMAKE_LIBRARY_PATH=~/Downloads/mysql/lib

Still:

MySql was not found.

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Try disabling MariaDB detection

cmake .. -DUSE_MYSQL=ON -DUSE_MARIADB=OFF

Result:

USE_MARIADB not used MySql was not found.

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Additional observation

At one point Drogon detected MariaDB instead:

-- Ok! We find mariadb!

But compilation failed with errors like:

mysql_real_query_start not declared MYSQL_WAIT_READ not declared

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Question

What is the correct way to make Drogon detect MySQL on Fedora?

Is MariaDB interfering with MySQL detection?

Are Fedora’s MySQL headers incompatible with Drogon?

Is there a known issue with Drogon’s MySQL detection?

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Expected result

CMake should detect MySQL and enable MySQL support in Drogon.