libpanel: init at 1.0.1

https://gitlab.gnome.org/GNOME/libpanel/-/compare/1.0.alpha...1.0.alpha1
https://gitlab.gnome.org/GNOME/libpanel/-/compare/1.0.alpha1...1.0.0
https://gitlab.gnome.org/GNOME/libpanel/-/compare/1.0.0...1.0.1

Changelog-Reviewed-By: Jan Tojnar <jtojnar@gmail.com>

pkgs/development/libraries/libpanel/default.nix

@@ -0,0 +1,65 @@
+{ stdenv
+, lib
+, fetchurl
+, meson
+, ninja
+, pkg-config
+, gobject-introspection
+, vala
+, gi-docgen
+, glib
+, gtk4
+, libadwaita
+, gnome
+}:
+
+stdenv.mkDerivation rec {
+  pname = "libpanel";
+  version = "1.0.1";
+
+  outputs = [ "out" "dev" "devdoc" ];
+  outputBin = "dev";
+
+  src = fetchurl {
+    url = "mirror://gnome/sources/libpanel/${lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
+    sha256 = "hBtqtx6wcv1lIAI+H3Gqx/8lDGbq37sXyVXaa/QeIwY=";
+  };
+
+  nativeBuildInputs = [
+    meson
+    ninja
+    pkg-config
+    gobject-introspection
+    vala
+    gi-docgen
+  ];
+
+  buildInputs = [
+    glib
+    gtk4
+    libadwaita
+  ];
+
+  mesonFlags = [
+    "-Dinstall-examples=true"
+  ];
+
+  postFixup = ''
+    # Cannot be in postInstall, otherwise _multioutDocs hook in preFixup will move right back.
+    moveToOutput "share/doc" "$devdoc"
+  '';
+
+  passthru = {
+    updateScript = gnome.updateScript {
+      packageName = pname;
+    };
+  };
+
+  meta = with lib; {
+    description = "Dock/panel library for GTK 4";
+    homepage = "https://gitlab.gnome.org/GNOME/libpanel";
+    license = licenses.lgpl21Plus;
+    maintainers = teams.gnome.members;
+    platforms = platforms.unix;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -20247,6 +20247,8 @@ with pkgs;
 
   libpam-wrapper = callPackage ../development/libraries/libpam-wrapper { };
 
+  libpanel = callPackage ../development/libraries/libpanel { };
+
   libpar2 = callPackage ../development/libraries/libpar2 { };
 
   libpcap = callPackage ../development/libraries/libpcap { };