anchor.diff:  x@{builderDefsPackage
  -  , fetchgit, qt4, ecl
  +  , fetchgit, qt4, ecl, xorgserver
  +  , xkbcomp, xkeyboard_config
     , ...}:
   builderDefsPackage
   (a :  
  
positive.code:     ln -s $out/lib/eql/build-dir/eql $out/bin
      ln -s $out/lib/eql/build-dir/src/*.h $out/include
      ln -s $out/lib/eql/build-dir/src/gen/*.h $out/include/gen
      mv $out/lib/eql/build-dir/my_app/libeql*.so* $out/lib
    '') ["minInit" "defEnsureDir"];
  
    meta = {
  
negative.code:   inherit (sourceInfo) name version;
    inherit buildInputs;
  
    phaseNames = ["setVars" "fixPaths" "firstMetaTypeId" "buildEQLLib" "doQMake" "doMake" "doDeploy"];
  
    setVars = a.fullDepEntry (''
      export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -fPIC"
  