anchor.diff:    };
   
     dontBuild = true;
  +  propagatedBuildInputs = [tk];
   
     installPhase = ''
       mkdir -p "$out/lib/${libPrefix}"
  
positive.code:   meta = {
      homepage = "https://sourceforge.net/projects/tcllib";
      description = "High-level widget set for Tcl/Tk";
      license = lib.licenses.tcltk;
      platforms = lib.platforms.linux;
    };
  
negative.code: { lib, fetchurl, tcl, tk }:
  
  let
    version = "1.9.14";
  