pantheon.elementary-greeter: pull upstream fix for meson 0.61

i18n.merge_file has been ignoring positional arguments for a time and explicitly rejects with error since meson 0.61

pkgs/desktops/pantheon/desktop/elementary-greeter/default.nix

@@ -1,6 +1,7 @@
 { lib
 , stdenv
 , fetchFromGitHub
+, fetchpatch
 , nix-update-script
 , linkFarm
 , substituteAll
@@ -90,6 +91,12 @@ stdenv.mkDerivation rec {
       src = ./hardcode-fallback-background.patch;
       default_wallpaper = "${nixos-artwork.wallpapers.simple-dark-gray.gnomeFilePath}";
     })
+    # Fix build with meson 0.61
+    # https://github.com/elementary/greeter/pull/590
+    (fetchpatch {
+      url = "https://github.com/elementary/greeter/commit/a4b25244058fce794a9f13f6b22a8ff7735ebde9.patch";
+      sha256 = "sha256-qPXhdvmYG8YMDU/CjbEkfZ0glgRzxnu0TsOPtvWHxLY=";
+    })
   ];
 
   preFixup = ''