06-27-2017, 05:18 AM
Can you compile a program, or do you need an executable? When you initialize the Cuberite's repository with cmake, you can specify "-DBUILD_TOOLS=1" parameter to build additional tools, one of them being MCADefrag. That program, when run, reads all .mca files in current folder and recompresses them. Be sure to operate on a copy of your world first, verify that the recompressed data is still valid, and only then replace your original world files.