gnome-frog: fix cross compilation

hosts/modules/gui/default.nix

@@ -78,6 +78,7 @@ in
     # "gnome.gnome-terminal"  # works on phosh
     "gnome.gnome-weather"
     "gnome.seahorse"  # keyring/secret manager
+    "gnome-frog"  # OCR/QR decoder
     "gpodder"
     "gthumb"
     "gtkcord4"  # Discord client. 2023/11/21: disabled because v0.0.12 leaks memory

nixpatches/list.nix

@@ -28,6 +28,11 @@ in [
     saneCommit = "8631ddfb99aa8e935276b27d55ef5e10f5ab0367";
     hash = "sha256-AkxtrCJrf0wpTdty4SOIWBrWwqfG7rBI4ON38BjDi6s=";
   })
+  (fetchpatch' {
+    title = "python3Packages.numpy: fix cross compilation";
+    prUrl = "https://github.com/NixOS/nixpkgs/pull/268587";
+    hash = "sha256-GRRLXwUw2JXEV6Ov0QiVTFwoi/ACManG2Qk7D3fzS8E=";
+  })
   # (fetchpatch' {
   #   title = "nixos/slskd: allow omitting username from yaml config";
   #   saneCommit = "541c37e8689b6422ea07be1395f1a63357bb0c63";

overlays/cross.nix

@@ -872,6 +872,15 @@ in with final; {
   # 2023/12/08: upstreaming is unblocked (but requires building webkitgtk-4.0)
   gthumb = mvInputs { nativeBuildInputs = [ glib ]; } prev.gthumb;
 
+  gnome-frog = prev.gnome-frog.overrideAttrs (upstream: {
+    # blueprint-compiler runs on the build machine, but tries to load gobject-introspection types meant for the host.
+    postPatch = (upstream.postPatch or "") + ''
+      substituteInPlace data/meson.build --replace \
+        "find_program('blueprint-compiler')" \
+        "'env', 'GI_TYPELIB_PATH=${buildPackages.gdk-pixbuf.out}/lib/girepository-1.0:${buildPackages.harfbuzz.out}/lib/girepository-1.0:${buildPackages.gtk4.out}/lib/girepository-1.0:${buildPackages.graphene}/lib/girepository-1.0:${buildPackages.libadwaita}/lib/girepository-1.0:${buildPackages.pango.out}/lib/girepository-1.0', find_program('blueprint-compiler')"
+    '';
+  });
+
   gnome = prev.gnome.overrideScope' (self: super: {
     # dconf-editor = super.dconf-editor.override {
     #   # fails to fix original error