Description of the Change

Removes compilation options to manage usage of select/poll/epoll. The code now makes use of MHD_USE_AUTO flag internally which automatically decides the best dispatch method.

Alternate Designs

Keep the current custom implementation. The downside would be that the configuration is more complex and error prone.

Possible Drawbacks

Performance issues. These have been verified in local and will be further verified as part of the validation process in github actions.

The change also requires a bump in the minimum required version of libmicrohttpd (from 0.9.52 to 0.9.53) - this is a minor version only so the issue should be minimal.

Verification Process

Manual validation through unit testing + local performance testing using apache benchmark (no visible improvement nor degradation of performance). Additional validation will be performed through github actions.

Release Notes

The package now does not require configuration flags to manage the internal dispatch method (poll/epoll/select).