xviewer: 3.4.12 -> 3.4.13 (#464175)

pkgs/by-name/xv/xviewer/package.nix

@@ -24,17 +24,18 @@
   cinnamon-desktop,
   yelp-tools,
   xapp,
+  xapp-symbolic-icons,
 }:
 
 stdenv.mkDerivation rec {
   pname = "xviewer";
-  version = "3.4.12";
+  version = "3.4.13";
 
   src = fetchFromGitHub {
     owner = "linuxmint";
     repo = "xviewer";
     rev = version;
-    hash = "sha256-WvA8T6r9DtlpOZLMEOILO6/0Am3bhCLM8FnwXvALjS8=";
+    hash = "sha256-g7ifQ+2FeZzpWfKgtFrWj0YDOB0++s6KGffHhvqGNQE=";
   };
 
   nativeBuildInputs = [
@@ -77,6 +78,12 @@ stdenv.mkDerivation rec {
       --replace-fail "g_irepository_require" "gi_repository_require"
   '';
 
+  preFixup = ''
+    gappsWrapperArgs+=(
+      --prefix XDG_DATA_DIRS : "${lib.makeSearchPath "share" [ xapp-symbolic-icons ]}"
+    )
+  '';
+
   meta = with lib; {
     description = "Generic image viewer from Linux Mint";
     mainProgram = "xviewer";