diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000000000000000000000000000000000000..fab94c7ae1aae520c75a2147dacc5155b9ef5976
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+*.gz filter=lfs diff=lfs merge=lfs -text
+*.bz2 filter=lfs diff=lfs merge=lfs -text
diff --git a/.lfsconfig b/.lfsconfig
new file mode 100644
index 0000000000000000000000000000000000000000..7332661306ac4f5229411bbb4e9edd870a211b13
--- /dev/null
+++ b/.lfsconfig
@@ -0,0 +1,2 @@
+[lfs]
+	url = https://artlfs.openeuler.openatom.cn/src-openEuler/fltk
diff --git a/fltk-1.3.11-fix-linkage.patch b/fltk-1.3.11-fix-linkage.patch
new file mode 100644
index 0000000000000000000000000000000000000000..2e5dd58c6ed22c0c6016ccd2f2e959010d050a0a
--- /dev/null
+++ b/fltk-1.3.11-fix-linkage.patch
@@ -0,0 +1,22 @@
+diff --git a/fluid/Makefile b/fluid/Makefile
+index 1e5a42f..ab8dff9 100644
+--- a/fluid/Makefile
++++ b/fluid/Makefile
+@@ -48,7 +48,7 @@ all:	$(FLUID) fluid$(EXEEXT)
+ fluid$(EXEEXT):		$(OBJECTS) $(LIBNAME) $(FLLIBNAME) \
+ 			$(IMGLIBNAME)
+ 	echo Linking $@...
+-	$(CXX) $(ARCHFLAGS) $(CXXFLAGS) -o $@ $(OBJECTS) $(LINKFLTKFORMS) $(LINKFLTKIMG) $(LDFLAGS) $(LDLIBS)
++	$(CXX) $(ARCHFLAGS) $(CXXFLAGS) $(LDFLAGS) -o $@ $(OBJECTS) $(LINKFLTKFORMS) $(LINKFLTKIMG) $(LDLIBS)
+ 	$(OSX_ONLY) $(RM) -r -f fluid.app
+ 	$(OSX_ONLY) mkdir -p fluid.app/Contents/MacOS fluid.app/Contents/Resources
+ 	$(OSX_ONLY) $(INSTALL_BIN) fluid fluid.app/Contents/MacOS
+@@ -58,7 +58,7 @@ fluid$(EXEEXT):		$(OBJECTS) $(LIBNAME) $(FLLIBNAME) \
+ fluid-shared$(EXEEXT):	$(OBJECTS) ../src/$(DSONAME) ../src/$(FLDSONAME) \
+ 			../src/$(IMGDSONAME)
+ 	echo Linking $@...
+-	$(CXX) $(ARCHFLAGS) $(CXXFLAGS) -o $@ $(OBJECTS) $(LINKSHARED) $(LDFLAGS) $(LDLIBS)
++	$(CXX) $(ARCHFLAGS) $(CXXFLAGS) $(LDFLAGS) -o $@ $(OBJECTS) $(LINKSHARED) $(LDLIBS)
+ 
+ clean:
+ 	-$(RM) *.o core.* *~ *.bck *.bak
diff --git a/fltk-1.3.11-source.tar.bz2 b/fltk-1.3.11-source.tar.bz2
new file mode 100644
index 0000000000000000000000000000000000000000..5c0d6e1896844881ed81a53c0c00c0b87a9f6659
--- /dev/null
+++ b/fltk-1.3.11-source.tar.bz2
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ca2e144e5f89173cd094cc273940d56230b1bf613083a0792e6406dc191cd99f
+size 4776421
diff --git a/fltk-1.3.9-source.tar.gz b/fltk-1.3.9-source.tar.gz
deleted file mode 100644
index 73aa0ee4d16f117591248a058941ed33a1a48241..0000000000000000000000000000000000000000
Binary files a/fltk-1.3.9-source.tar.gz and /dev/null differ
diff --git a/fltk.spec b/fltk.spec
index 9d6fef476ee374a5b92d8bc3c128c6c6aa196fa2..0d890653240b634339b14ec3b1b0b0d3060188e8 100644
--- a/fltk.spec
+++ b/fltk.spec
@@ -1,15 +1,16 @@
 Name:           fltk
-Version:        1.3.9
-Release:        2
+Version:        1.3.11
+Release:        1
 Summary:        C++ user interface toolkit
 License:        LGPL-2.0-or-later with exceptions
-URL:            http://www.fltk.org/
-Source0:        https://www.fltk.org/pub/fltk/%{version}/%{name}-%{version}-source.tar.gz
+URL:            https://www.fltk.org/
+Source0:        https://github.com/fltk/fltk/releases/download/release-%{version}/fltk-%{version}-source.tar.bz2
 
 
 Source1:        fltk-config.sh
 
 Patch0001:      fltk-1.3.4-x-fluid_mimetype.patch
+Patch0002:      fltk-1.3.11-fix-linkage.patch
 
 BuildRequires:  gcc-c++ desktop-file-utils libjpeg-devel pkgconfig(libpng) pkgconfig(gl) pkgconfig(glu) pkgconfig(ice)
 BuildRequires:  pkgconfig(sm) pkgconfig(xext) pkgconfig(xinerama) pkgconfig(xft) pkgconfig(xt) pkgconfig(x11)
@@ -122,6 +123,9 @@ desktop-file-validate $RPM_BUILD_ROOT%{_datadir}/applications/fluid.desktop
 %{_datadir}/icons/hicolor/*/*/*
 
 %changelog
+* Mon Jun 02 2025 Funda Wang <fundawang@yeah.net> - 1.3.11-1
+- update to 1.3.11
+
 * Sun Sep 29 2024 Funda Wang <fundawang@yeah.net> - 1.3.9-2
 - cleanup spec