newsflash: simplify cross compilation

overlays/cross.nix

@@ -864,31 +864,23 @@ in with final; {
   # 2023/07/31: upstreaming is blocked on vpnc cross compilation
   # networkmanager-vpnc = mvToNativeInputs [ glib ] prev.networkmanager-vpnc;
 
-  newsflash = prev.newsflash.overrideAttrs (upstream: {
-    nativeBuildInputs = (lib.filter (p: !lib.elem (p.pname or p.name) [ "gdk-pixbuf" "blueprint-compiler" ]) upstream.nativeBuildInputs) ++ [
-      buildPackages.git
-      (buildPackages.writeShellScriptBin "blueprint-compiler" ''
+  newsflash = (prev.newsflash.override {
+    blueprint-compiler = buildPackages.writeShellScriptBin "blueprint-compiler" ''
       export GI_TYPELIB_PATH=${typelibPath [
         buildPackages.clapper
         buildPackages.glib
         buildPackages.gtk4
         buildPackages.gst_all_1.gstreamer
-          # some of these below are probably *not* needed
         buildPackages.gst_all_1.gst-plugins-base
-          buildPackages.gst_all_1.gst-plugins-good
-          buildPackages.gst_all_1.gst-plugins-bad
         buildPackages.gdk-pixbuf
+        buildPackages.pango
         buildPackages.graphene
         buildPackages.harfbuzz
         buildPackages.libadwaita
-          buildPackages.pango
       ]}
       exec ${lib.getExe buildPackages.blueprint-compiler} "$@"
-      '')
-    ];
-
-    # strictDeps = false;
-
+    '';
+  }).overrideAttrs (upstream: {
     postPatch = (upstream.postPatch or "") + ''
       substituteInPlace src/meson.build --replace-fail \
         "'src' / rust_target" \
@@ -939,18 +931,6 @@ in with final; {
       # OPENSSL_LIB_DIR = "${lib.getLib openssl}/lib";
       # OPENSSL_DIR = "${lib.getDev openssl}";
     };
-
-    # mesonFlags = let
-    #   crossFile = writeText "cross-file.conf" ''
-    #     [binaries]
-    #     rust = [ 'rustc', '--target', '${rust.toRustTargetSpec stdenv.hostPlatform}' ]
-    #   '';
-    # in
-    #   (upstream.mesonFlags or []) ++ [
-    #     "-Dprofile=development"
-    #   ] ++ lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
-    #     "--cross-file=${crossFile}"
-    #   ];
   });
 
   # fixes "properties/gresource.xml: Permission denied"