diff --git a/lingot.spec b/lingot.spec
index 6973b76..284be70 100644
--- a/lingot.spec
+++ b/lingot.spec
@@ -1,5 +1,5 @@
 Name:          lingot
-Version:       1.0.1
+Version:       1.1.1
 Release:       1mamba
 Summary:       LINGOT Is Not a Guitar-Only Tuner
 Group:         Graphical Desktop/Applications/Multimedia
@@ -10,7 +10,6 @@ URL:           http://www.nongnu.org/lingot/
 Source:        http://download.savannah.gnu.org/releases/lingot/lingot-%{version}.tar.gz
 Source1:       lingot.png
 License:       GPL
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
 BuildRequires: libatk-devel
@@ -19,12 +18,31 @@ BuildRequires: libglib-devel
 BuildRequires: libgtk-devel
 BuildRequires: libpango-devel
 ## AUTOBUILDREQ-END
+Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
+BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 LINGOT Is Not a Guitar-Only Tuner.
 
-%prep
+%package -n lib%{name}
+Group:         System/Libraries
+Summary:       Shared libraries for %{name}
 
+%description -n lib%{name}
+This package contains shared libraries for %{name}.
+
+%package -n lib%{name}-devel
+Group:         Development/Libraries
+Summary:       Development files for %{name}
+Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
+Requires:      pkg-config
+
+%description -n lib%{name}-devel
+This package contains libraries and header files for developing applications that use %{name}.
+
+%debug_package
+
+%prep
 %setup -q
 
 %build
@@ -58,6 +76,9 @@ EOF
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
+%post -n lib%{name} -p /sbin/ldconfig
+%postun -n lib%{name} -p /sbin/ldconfig
+
 %files -f %{name}.lang
 %defattr(-,root,root)
 %{_bindir}/lingot
@@ -67,10 +88,26 @@ EOF
 %{_datadir}/icons/hicolor/scalable/apps/org.nongnu.lingot.svg
 %{_mandir}/man1/lingot.1*
 %{_datadir}/doc/lingot/*
-%doc AUTHORS COPYING
 #ChangeLog INSTALL NEWS README THANKS TODO
 
+%files -n lib%{name}
+%defattr(-,root,root)
+%{_libdir}/liblingot.so.*
+%doc AUTHORS COPYING
+
+%files -n lib%{name}-devel
+%defattr(-,root,root)
+%dir %{_includedir}/lingot
+%{_includedir}/lingot/lingot-*.h
+%{_libdir}/liblingot.a
+%{_libdir}/liblingot.la
+%{_libdir}/liblingot.so
+%{_libdir}/pkgconfig/lingot.pc
+
 %changelog
+* Thu Jul 02 2020 Automatic Build System <autodist@mambasoft.it> 1.1.1-1mamba
+- automatic update by autodist
+
 * Tue Aug 28 2018 Automatic Build System <autodist@mambasoft.it> 1.0.1-1mamba
 - automatic update by autodist