anchor.diff:  , llvmPackages
   }:
   
  +with stdenv.lib;
   let
     verMajor = "1";
     verMinor = "2";
  
positive.code:     sha256 = "19x000m3jwnkqgi6ic81lkzyjvvxcfacw2j0vcfcaknvvagzhyhb";
    };
  
    hunspellDictionaries = with stdenv.lib; filter isDerivation (unique (attrValues hunspellDicts));
  
    mathJaxSrc = fetchurl {
      url = https://s3.amazonaws.com/rstudio-buildtools/mathjax-26.zip;
  
negative.code:       mv gwt-${gwtVer} $GWT_LIB_DIR/gwt/${gwtVer}
  
        mkdir dependencies/common/dictionaries
        for dict in ${builtins.concatStringsSep " " dictionaries}; do
          for i in "$dict/share/hunspell/"*; do
            ln -sv $i dependencies/common/dictionaries/
          done
  