diff --git a/0001-make-constructors-of-abstract-classes-protected.patch b/0001-make-constructors-of-abstract-classes-protected.patch
new file mode 100644
index 0000000..2a969a7
--- /dev/null
+++ b/0001-make-constructors-of-abstract-classes-protected.patch
@@ -0,0 +1,79 @@
+From f10e917b252a809daf9f7650011f68edc6be81b0 Mon Sep 17 00:00:00 2001
+From: Evgeny Stambulchik <fnevgeny@gmail.com>
+Date: Sun, 4 Aug 2019 00:50:34 +0300
+Subject: [PATCH] Make constructors of abstract classes protected
+
+This should fix #445.
+---
+ src/classes/action/action_mapping.vala | 2 +-
+ src/classes/drawings/storage.vala      | 2 +-
+ src/classes/renderer/cache/base.vala   | 2 +-
+ src/classes/timer_label.vala           | 2 +-
+ src/classes/view/behaviour/base.vala   | 2 +-
+ 5 files changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/src/classes/action/action_mapping.vala b/src/classes/action/action_mapping.vala
+index 780f80a..0abc307 100644
+--- a/src/classes/action/action_mapping.vala
++++ b/src/classes/action/action_mapping.vala
+@@ -48,7 +48,7 @@ namespace pdfpc {
+          * methods, and we need blank objects to call them.  Thus, this blank
+          * constructor.
+          */
+-        public ActionMapping() {
++        protected ActionMapping() {
+             base();
+         }
+ 
+diff --git a/src/classes/drawings/storage.vala b/src/classes/drawings/storage.vala
+index 6c6e7f9..e5ceaa9 100644
+--- a/src/classes/drawings/storage.vala
++++ b/src/classes/drawings/storage.vala
+@@ -35,7 +35,7 @@ namespace pdfpc.Drawings.Storage {
+          */
+         protected Metadata.Pdf metadata;
+ 
+-        public Base(Metadata.Pdf metadata) {
++        protected Base(Metadata.Pdf metadata) {
+             this.metadata = metadata;
+         }
+ 
+diff --git a/src/classes/renderer/cache/base.vala b/src/classes/renderer/cache/base.vala
+index d60730e..2dc39ac 100644
+--- a/src/classes/renderer/cache/base.vala
++++ b/src/classes/renderer/cache/base.vala
+@@ -37,7 +37,7 @@ namespace pdfpc.Renderer.Cache {
+         /**
+          * Initialize the cache store
+          */
+-        public Base(Metadata.Pdf metadata) {
++        protected Base(Metadata.Pdf metadata) {
+             this.metadata = metadata;
+         }
+ 
+diff --git a/src/classes/timer_label.vala b/src/classes/timer_label.vala
+index 8b55acc..8d689e1 100644
+--- a/src/classes/timer_label.vala
++++ b/src/classes/timer_label.vala
+@@ -95,7 +95,7 @@ namespace pdfpc {
+          * Default constructor taking the initial time as argument, as well as
+          * the time to countdown until the talk actually starts.
+          */
+-        public TimerLabel(PresentationController controller, time_t start_time = 0) {
++        protected TimerLabel(PresentationController controller, time_t start_time = 0) {
+             this.controller = controller;
+             this.start_time = start_time;
+         }
+diff --git a/src/classes/view/behaviour/base.vala b/src/classes/view/behaviour/base.vala
+index 4382ba6..46c8808 100644
+--- a/src/classes/view/behaviour/base.vala
++++ b/src/classes/view/behaviour/base.vala
+@@ -41,7 +41,7 @@ namespace pdfpc.View {
+         /**
+          * Base constructor not taking any arguments
+          */
+-        public Base() {
++        protected Base() {
+             // Nothing to do here
+         }
+ 
diff --git a/pdfpc.spec b/pdfpc.spec
new file mode 100644
index 0000000..f019913
--- /dev/null
+++ b/pdfpc.spec
@@ -0,0 +1,43 @@
+Name:                pdfpc
+Version:             4.3.4
+Release:             1
+Summary:             A GTK based presentation viewer application for GNU/Linux
+License:             GPLv2+
+URL:                 https://%{name}.github.io/
+Source0:             https://github.com/%{name}/%{name}/archive/v%{version}.tar.gz
+Patch0:              0001-make-constructors-of-abstract-classes-protected.patch
+BuildRequires:       cmake gcc git-core gtk3-devel gstreamer1-devel gstreamer1-plugins-base-devel
+BuildRequires:       librsvg2-devel libgee-devel pango-devel poppler-glib-devel vala vala-devel
+
+%description
+pdfpc is a GTK based presentation viewer application for GNU/Linux which uses
+Keynote like multi-monitor output to provide meta information to the speaker
+during the presentation. It is able to show a normal presentation window on one
+screen, while showing a more sophisticated overview on the other one providing
+information like a picture of the next slide, as well as the left over time
+till the end of the presentation. The input files processed by pdfpc are PDF
+documents, which can be created using nearly any of today's presentation
+software.
+
+%prep
+%autosetup -n %{name}-%{version} -S git
+
+%build
+%cmake -DSYSCONFDIR=/etc .
+make %{?_smp_mflags}
+
+%install
+%make_install
+
+%files
+%doc README.rst CHANGELOG.txt
+%{_bindir}/%{name}
+%license LICENSE.txt
+%config(noreplace) %{_sysconfdir}/%{name}rc
+%{_mandir}/man1/%{name}*
+%{_mandir}/man5/%{name}*
+%{_datadir}/pixmaps/%{name}
+
+%changelog
+* Tue Nov 17 2020 wangyue <wangyue92@huawei.com> - 4.3.4-1
+- package init
diff --git a/pdfpc.yaml b/pdfpc.yaml
new file mode 100644
index 0000000..178790e
--- /dev/null
+++ b/pdfpc.yaml
@@ -0,0 +1,5 @@
+git_url: https://github.com/pdfpc/pdfpc
+version_control: github
+src_repo: pdfpc/pdfpc
+tag_prefix: "^v"
+seperator: "."
diff --git a/v4.3.4.tar.gz b/v4.3.4.tar.gz
new file mode 100644
index 0000000..0d60e64
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