anchor.diff:      maintainers = [ maintainers.raskin ];
       platforms = platforms.linux;
       description = ''Constructive solid geometry package'';
  -    broken = true; # redefines template instance added in Qt 5.6
     };
   }
  
positive.code:     sha256 = "0a0sqf6h227zalh0jrz6jpm8iwji7q3i31plqk76i4qm9vsgrhir";
    };
  
    nativeBuildInputs = [ qmakeHook ];
    buildInputs = [ qtbase cgal boost gmp mpfr flex bison dxflib readline mesa_glu ];
  
  
negative.code: { stdenv, fetchFromGitHub, fetchurl, cgal, boost, gmp, mpfr, flex, bison, dxflib, readline
  , qtbase, qmakeHook, mesa_glu
  }:
  
  