anchor.diff:  , libxml2
   , python3
   , gettext
  +, doxygen
  +, graphviz
  +, libxslt
   }:
   
   stdenv.mkDerivation rec {
  
positive.code:     libxml2.bin
      python3
      which
    ];
  
    doCheck = stdenv.isLinux;
  
negative.code:     ./fix-cmake.patch
    ];
  
    cmakeFlags = [
      "-DEXIV2_BUILD_PO=ON"
      "-DEXIV2_BUILD_DOC=ON"
    ];
  
    outputs = [ "out" "dev" "doc" "man" ];
  
    nativeBuildInputs = [
      cmake
      doxygen
      gettext
      graphviz
      libxslt
    ];
  
    propagatedBuildInputs = [
  