anchor.diff:      )
     '';
   
  -  # Fix CMake export paths. Can be removed once https://github.com/Exiv2/exiv2/pull/1263 is merged.
  -  postFixup = ''
  -    sed -i "$dev/lib/cmake/exiv2/exiv2Config.cmake" \
  -        -e "/INTERFACE_INCLUDE_DIRECTORIES/ s@\''${_IMPORT_PREFIX}@$dev@" \
  -        -e "/Compute the installation prefix/ a set(_IMPORT_PREFIX \"$out\")" \
  -        -e "/^get_filename_component(_IMPORT_PREFIX/ d"
  -  '';
  -
  -  enableParallelBuilding = true;
  -
     meta = with stdenv.lib; {
       homepage = "https://www.exiv2.org/";
       description = "A library and command-line utility to manage image metadata";
       platforms = platforms.all;
       license = licenses.gpl2Plus;
  +    maintainers = [ ];
     };
   }
  
positive.code:       url = "https://github.com/Exiv2/exiv2/commit/bbe0b70840cf28b7dd8c0b7e9bb1b741aeda2efd.patch";
        sha256 = "13zw1mn0ag0jrz73hqjhdsh1img7jvj5yddip2k2sb5phy04rzfx";
      })
    ];
  
    cmakeFlags = [
      "-DEXIV2_BUILD_PO=ON"
      "-DEXIV2_BUILD_DOC=ON"
      # the cmake package does not handle absolute CMAKE_INSTALL_INCLUDEDIR correctly
      # (setting it to an absolute path causes include files to go to $out/$out/include,
      #  because the absolute path is interpreted with root at $out).
      # Can probably be removed once https://github.com/Exiv2/exiv2/pull/1263 is merged.
      "-DCMAKE_INSTALL_INCLUDEDIR=include"
      "-DCMAKE_INSTALL_LIBDIR=lib"
    ];
  
    outputs = [ "out" "dev" "doc" "man" ];
  
    nativeBuildInputs = [
      cmake
  
negative.code:     which
    ];
  
    cmakeFlags = [
      "-DEXIV2_ENABLE_NLS=ON"
      "-DEXIV2_BUILD_DOC=ON"
    ];
  
    buildFlags = [
      "all"
      "doc"
    ];
  
  