anchor.diff:    # Generate the NixOS manpages.
     manpages = runCommand "nixos-manpages"
       { inherit sources;
  -      nativeBuildInputs = [ buildPackages.libxml2 buildPackages.libxslt ];
  +      nativeBuildInputs = [ buildPackages.libxml2.bin buildPackages.libxslt.bin ];
         allowedReferences = ["out"];
       }
       ''
  
positive.code: 
    manualEpub = runCommand "nixos-manual-epub"
      { inherit sources;
        buildInputs = [ libxml2 libxslt zip ];
      }
      ''
        # Generate the epub manual.
  
negative.code: 
    olinkDB = runCommand "manual-olinkdb"
      { inherit sources;
        nativeBuildInputs = [ buildPackages.libxml2.bin buildPackages.libxslt.bin ];
      }
      ''
        xsltproc \
  