anchor.diff:    ];
   
     buildPhase = ''
  +    runHook preBuild
  +
       mkdir -p client/build server/build
   
       # build .so from stb headers
  
positive.code:     pushd server
      make mode=release
      popd
    '';
  
    installPhase = ''
      install -Dm644 client/libs/stb/libstb.so -t $out/lib
      install -Dm755 client/build/soldat_* $out/bin/soldat
      install -Dm755 server/build/soldatserver_* $out/bin/soldatserver
  
negative.code:         --add-flags "-fs_userpath \"$configDir\"" \
          --add-flags "-fs_basepath \"${base}/share/soldat\""
      done
  
      runHook postInstall
    '';
  
    meta = with lib; {
  