The build was failing with 'implicit declaration of function inet_aton'
error in newer GCC versions. Adding _GNU_SOURCE feature test macro
makes inet_aton available. Also fixed unused result warning for fread.
Fixes#582
* Add rcon client to container
* Explain rcon command
* Remove test container name
* Apply suggestions
Co-authored-by: Florian Kinder <florian.kinder@fankserver.com>
* Add example docker-compose file
* Clarify return code
* Switch to pre-update
* Update docker-compose.yml
Co-authored-by: Florian Kinder <florian.kinder@fankserver.com>
* Allow build support for build (/* is only possible in buildx)
* Added version information in README.md
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Co-authored-by: Florian Kinder <florian.kinder@fankserver.com>
