graphics/viewnior: make compatible with exiv2 0.28

PR:		272311

graphics/viewnior/Makefile

 PORTNAME=	viewnior
 DISTVERSIONPREFIX=	${PORTNAME}-
 DISTVERSION=	1.8
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	graphics
 
 MAINTAINER=	eduardo@FreeBSD.org

graphics/viewnior/files/patch-src_uni-exiv2.cpp

+--- src/uni-exiv2.cpp.orig	2021-11-21 14:49:46 UTC
++++ src/uni-exiv2.cpp
+@@ -27,7 +27,7 @@
+ 
+ #define ARRAY_SIZE(array) (sizeof array/sizeof(array[0]))
+ 
+-static Exiv2::Image::AutoPtr cached_image;
++static Exiv2::Image::UniquePtr cached_image;
+ 
+ extern "C"
+ void
+@@ -35,7 +35,7 @@ uni_read_exiv2_map(const char *uri, void (*callback)(c
+ {
+     Exiv2::LogMsg::setLevel(Exiv2::LogMsg::mute);
+     try {
+-        Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open(uri);
++        Exiv2::Image::UniquePtr image { Exiv2::ImageFactory::open(uri) };
+         if ( image.get() == 0 ) {
+             return;
+         }
+@@ -80,7 +80,7 @@ uni_read_exiv2_map(const char *uri, void (*callback)(c
+                 }
+             }
+         }
+-    } catch (Exiv2::AnyError& e) {
++    } catch (Exiv2::Error& e) {
+         std::cerr << "Exiv2: '" << e << "'\n";
+     }
+ }
+@@ -97,13 +97,13 @@ uni_read_exiv2_to_cache(const char *uri)
+     }
+ 
+     try {
+-        cached_image = Exiv2::ImageFactory::open(uri);
++        cached_image = std::move(Exiv2::ImageFactory::open(uri));
+         if ( cached_image.get() == 0 ) {
+             return 1;
+         }
+ 
+         cached_image->readMetadata();
+-    } catch (Exiv2::AnyError& e) {
++    } catch (Exiv2::Error& e) {
+         std::cerr << "Exiv2: '" << e << "'\n";
+     }
+ 
+@@ -121,7 +121,7 @@ uni_write_exiv2_from_cache(const char *uri)
+     }
+ 
+     try {
+-        Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open(uri);
++        Exiv2::Image::UniquePtr image { Exiv2::ImageFactory::open(uri) };
+         if ( image.get() == 0 ) {
+             return 2;
+         }
+@@ -133,7 +133,7 @@ uni_write_exiv2_from_cache(const char *uri)
+         cached_image.reset(NULL);
+ 
+         return 0;
+-    } catch (Exiv2::AnyError& e) {
++    } catch (Exiv2::Error& e) {
+         std::cerr << "Exiv2: '" << e << "'\n";
+     }
+