https://gitweb.gentoo.org/repo/gentoo.git/tree/media-gfx/ufraw/files/ufraw-0.22-exiv2-0.27.patch

--- ufraw_exiv2.cc.orig	2016-11-13 04:00:05 UTC
+++ ufraw_exiv2.cc
@@ -15,9 +15,8 @@
 #include "ufraw.h"
 
 #ifdef HAVE_EXIV2
-#include <exiv2/image.hpp>
-#include <exiv2/easyaccess.hpp>
-#include <exiv2/exif.hpp>
+#include <iostream>
+#include <exiv2/exiv2.hpp>
 #include <sstream>
 #include <cassert>
 
@@ -67,7 +66,11 @@ extern "C" int ufraw_exif_read_input(ufraw_data *uf)
         if (exifData.empty()) {
             std::string error(uf->filename);
             error += ": No Exif data found in the file";
+#if EXIV2_TEST_VERSION(0,27,0)
+            throw Exiv2::Error(Exiv2::kerErrorMessage, error);
+#else
             throw Exiv2::Error(1, error);
+#endif
         }
 
         /* List of tag names taken from exiv2's printSummary() in actions.cpp */