In case someone is interested to build MilkyTracker, here is a very rough guide. I have compiled some older versions natively using CMake, but since I don't have that on my current setup, I have been cross-compiling on Linux.
You need:
1) a working cross-compiler installation (adtools)
2) SDL2 headers + libs
3) git clone of
https://github.com/capehill/MilkyTrackerThen you could create a build directory for cmake and configure project:
CMAKE_PREFIX_PATH=<your_path>/native-build/root-cross/ppc-amigaos/SDK/local/newlib cmake .. -DCMAKE_CROSSCOMPILING=ON -DCMAKE_FIND_ROOT_PATH=<your_path>/native-build/root-cross/bin/ -DCMAKE_CXX_COMPILER=ppc-amigaos-g++ -DCMAKE_C_COMPILER=ppc-amigaos-gcc -DFORCESDL=1 -DAMIGA=1 -DCMAKE_BUILD_TYPE=Release
If this worked, you can build it:
make -j8 VERBOSE=1