anchor.diff:  in
   
   stdenv.mkDerivation rec {
  -  name = "busybox-1.19.0";
  +  name = "busybox-1.19.4";
   
     src = fetchurl {
       url = "http://busybox.net/downloads/${name}.tar.bz2";
  -    sha256 = "0332yxvlfv2hbix9n70dyp4xlm2hrk248qqdg006hyfpjsh49kqr";
  +    sha256 = "1vhh6xa71w4wzby0f4x357fv6zxvkklmyjc8njgbbzv1v83391cv";
     };
   
     configurePhase = ''
  
positive.code: let
    configParser = ''
      function parseconfig {
          set -x
          while read LINE; do
              NAME=`echo "$LINE" | cut -d \  -f 1`
              OPTION=`echo "$LINE" | cut -d \  -f 2`
  
negative.code:             fi
  
              echo "parseconfig: removing $NAME"
              sed -i /$NAME'\(=\| \)'/d .config
  
              echo "parseconfig: setting $NAME=$OPTION"
              echo "$NAME=$OPTION" >> .config
          done
      }
    '';
  
  