anchor.diff:          patchShebangs configure
         '';
       });
  +
  +    proj4 = old.proj4.overrideDerivation (attrs: {
  +      preConfigure = ''
  +        substituteInPlace configure \
  +          --replace "-lsqlite3" "-L${lib.makeLibraryPath [ pkgs.sqlite ]} -lsqlite3"
  +      '';
  +    });
     };
   in
     self
  
positive.code:     HDF5Array = [ pkgs.zlib.dev ];
      FLAMES = [ pkgs.zlib.dev ];
      ncdfFlow = [ pkgs.zlib.dev ];
    };
  
    packagesRequiringX = [
  
negative.code:     "av"
      "rgl"
      "NetLogoR"
      "x13binary"
  
      # Impure network access during build
  