Try pointing one of the environment variables mentioned here to your installation of SDL2 before launching ECL: https://developer.apple.com/library/archive/doc

Try pointing one of the environment variables mentioned here to your installation of SDL2 before launching ECL: https://developer.apple.com/library/archive/documentation/DeveloperTools/Conceptual/DynamicLibraries/100-Articles/UsingDynamicLibraries.html https://developer.apple.com/library/archive/documentation/De... LD_LIBRARY_PATH DYLD_LIBRARY_PATH DYLD_FALLBACK_LIBRARY_PATH I don’t know if there’s a way to do that from within ECL.