anchor.diff:      inherit fetchurl stdenv;
     };
   
  -  gzip = useFromStdenv (stdenv ? gzip) stdenv.gzip (import ../tools/compression/gzip {
  -    inherit fetchurl stdenv;
  -  });
  -
  -  bzip2 = useFromStdenv (stdenv ? bzip2) stdenv.bzip2 (import ../tools/compression/bzip2 {
  -    inherit fetchurl stdenv;
  -  });
  +  gzip = useFromStdenv (stdenv ? gzip) stdenv.gzip
  +    (import ../tools/compression/gzip {
  +      inherit fetchurl stdenv;
  +    });
  +
  +  bzip2 = useFromStdenv (stdenv ? bzip2) stdenv.bzip2
  +    (import ../tools/compression/bzip2 {
  +      inherit fetchurl stdenv;
  +    });
   
     zdelta = (import ../tools/compression/zdelta) {
       inherit fetchurl stdenv;
  
positive.code:   };
  
    patchelf = useFromStdenv (stdenv ? patchelf) stdenv.patchelf
    (import ../development/tools/misc/patchelf) {
      inherit fetchurl stdenv;
    };
  
    gnum4 = (import ../development/tools/misc/gnum4) {
      inherit fetchurl stdenv;
  
negative.code:   };
  
    gnumake = useFromStdenv (stdenv ? gnumake) stdenv.gnumake
      (import ../development/tools/build-managers/gnumake {
        inherit fetchurl stdenv;
      });
  
    mk = (import ../development/tools/build-managers/mk) {
      inherit fetchurl stdenv;
  