diff --git a/README.md b/README.md
index 47d3fb0..19ec5ae 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # ocaml-labltk
 
+LablTk is an OCaml interface to the Tcl/Tk GUI framework.
+
diff --git a/ocaml-labltk.spec b/ocaml-labltk.spec
new file mode 100644
index 0000000..8b1571d
--- /dev/null
+++ b/ocaml-labltk.spec
@@ -0,0 +1,87 @@
+Name:          ocaml-labltk
+Version:       8.06.5
+Release:       1mamba
+Summary:       An OCaml interface to the Tcl/Tk GUI framework
+Group:         System/Libraries
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           http://labltk.forge.ocamlcore.org/
+Source:        https://forge.ocamlcore.org/frs/download.php/1764/labltk-%{version}.tar.gz
+License:       BSD
+## AUTOBUILDREQ-BEGIN
+BuildRequires: glibc-devel
+BuildRequires: libX11-devel
+BuildRequires: libtcl-devel
+BuildRequires: libtk-devel
+## AUTOBUILDREQ-END
+BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+
+%description
+LablTk is an OCaml interface to the Tcl/Tk GUI framework.
+
+%package devel
+Group:         Development/Libraries
+Summary:       Development files for %{name}
+Requires:      %{name} = %{?epoch:%epoch:}%{version}-%{release}
+
+%description devel
+This package contains libraries and header files for developing applications that use %{name}.
+
+%debug_package
+
+%prep
+%setup -q -n labltk-%{version}
+
+%build
+./configure
+
+make all opt
+
+%install
+install -d -m 755 %{buildroot}%{_bindir}
+install -d -m 755 %{buildroot}%{_libdir}/ocaml/labltk
+install -d -m 755 %{buildroot}%{_libdir}/ocaml/stublibs
+make \
+   BINDIR=%{buildroot}%{_bindir} \
+   INSTALLDIR=%{buildroot}%{_libdir}/ocaml/labltk \
+   STUBLIBDIR=%{buildroot}%{_libdir}/ocaml/stublibs \
+   install
+
+rm -f %{buildroot}%{_libdir}/ocaml/labltk/*.ml
+
+## Make and install a META file.
+#cat > %{buildroot}%{_libdir}/ocaml/labltk/META<<EOF
+#version="%{version}"
+#directory="+labltk"
+#archive(byte) = "labltk.cma"
+#archive(native) = "labltk.cmxa"
+#EOF
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%files
+%defattr(-,root,root)
+%{_bindir}/labltk
+%dir %{_libdir}/ocaml/labltk
+%{_libdir}/ocaml/labltk/*.cmi
+%{_libdir}/ocaml/labltk/tkthread.cmo
+%{_libdir}/ocaml/stublibs/dlllabltk.so
+
+%files devel
+%defattr(-,root,root)
+%{_bindir}/ocamlbrowser
+%{_libdir}/ocaml/labltk/*.a
+%{_libdir}/ocaml/labltk/*.cma
+%{_libdir}/ocaml/labltk/*.cmx
+%{_libdir}/ocaml/labltk/*.cmxa
+%{_libdir}/ocaml/labltk/*.mli
+%{_libdir}/ocaml/labltk/labltktop
+%{_libdir}/ocaml/labltk/pp
+%{_libdir}/ocaml/labltk/tkcompiler
+%doc README.md README.mlTk
+
+%changelog
+* Fri Apr 26 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 8.06.5-1mamba
+- package created using the webbuild interface