diff --git a/README.md b/README.md
index 0c813c3..3a8cddb 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # kcalc
 
+Scientific calculator.
+
diff --git a/kcalc.spec b/kcalc.spec
new file mode 100644
index 0000000..37e18ce
--- /dev/null
+++ b/kcalc.spec
@@ -0,0 +1,148 @@
+Name:          kcalc
+Version:       4.13.0
+Release:       1mamba
+Summary:       Scientific calculator
+Group:         Graphical Desktop/Applications/Utilities
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Davide Madrisan <davide.madrisan@gmail.com>
+URL:           http://www.kde.org
+Source:        http://download.kde.org/stable/%{version}/src/kcalc-%{version}.tar.xz
+License:       GPL
+BuildRequires: cmake
+## AUTOBUILDREQ-BEGIN
+BuildRequires: glibc-devel
+BuildRequires: kdelibs-devel
+BuildRequires: kde-workspace-devel
+BuildRequires: libgcc
+BuildRequires: libgmp-devel
+BuildRequires: libqt4-devel
+BuildRequires: libstdc++6-devel
+## AUTOBUILDREQ-END
+Requires:      kde-workspace
+Provides:      kcalc4
+BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+
+%description
+%{summary}.
+
+%debug_package
+
+%prep
+%setup -q
+
+%build
+%cmake_kde4 -d build
+%make
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+%makeinstall -C build
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%posttrans
+update-desktop-database -q >/dev/null 2>&1
+update-mime-database %{_kde4_mimedir} >/dev/null 2>&1
+exit 0
+
+%postun
+if [ $1 -eq 0 ]; then
+   update-desktop-database -q >/dev/null 2>&1
+   update-mime-database %{_kde4_mimedir} >/dev/null 2>&1
+fi
+exit 0
+
+%files
+%defattr(-,root,root)
+%{_kde4_bindir}/%{name}
+%{_kde4_libdir}/libkdeinit4_kcalc.so
+%{_kde4_xdgappsdir}/%{name}.desktop
+%{_kde4_datadir}/%{name}
+%{_kde4_kconfupdatedir}/kcalcrc.upd
+%{_kde4_kcfgdir}/%{name}.kcfg
+%doc %lang(en) %{_kde4_htmldir}/en/%{name}
+%doc COPYING COPYING.LIB
+
+%changelog
+* Thu Apr 17 2014 Automatic Build System <autodist@mambasoft.it> 4.13.0-1mamba
+- automatic version update by autodist
+
+* Thu Apr 03 2014 Automatic Build System <autodist@mambasoft.it> 4.12.4-1mamba
+- automatic version update by autodist
+
+* Wed Mar 05 2014 Automatic Build System <autodist@mambasoft.it> 4.12.3-1mamba
+- automatic version update by autodist
+
+* Wed Feb 05 2014 Automatic Build System <autodist@mambasoft.it> 4.12.2-1mamba
+- automatic version update by autodist
+
+* Tue Jan 14 2014 Automatic Build System <autodist@mambasoft.it> 4.12.1-1mamba
+- automatic version update by autodist
+
+* Thu Dec 19 2013 Automatic Build System <autodist@mambasoft.it> 4.12.0-1mamba
+- automatic version update by autodist
+
+* Thu Dec 05 2013 Automatic Build System <autodist@mambasoft.it> 4.11.4-1mamba
+- automatic version update by autodist
+
+* Wed Nov 06 2013 Automatic Build System <autodist@mambasoft.it> 4.11.3-1mamba
+- automatic version update by autodist
+
+* Wed Oct 02 2013 Automatic Build System <autodist@mambasoft.it> 4.11.2-1mamba
+- automatic version update by autodist
+
+* Wed Sep 04 2013 Automatic Build System <autodist@mambasoft.it> 4.11.1-1mamba
+- automatic version update by autodist
+
+* Wed Aug 14 2013 Automatic Build System <autodist@mambasoft.it> 4.11.0-1mamba
+- automatic version update by autodist
+
+* Tue Jul 02 2013 Automatic Build System <autodist@mambasoft.it> 4.10.5-1mamba
+- automatic version update by autodist
+
+* Wed Jun 05 2013 Automatic Build System <autodist@mambasoft.it> 4.10.4-1mamba
+- automatic version update by autodist
+
+* Tue May 07 2013 Automatic Build System <autodist@mambasoft.it> 4.10.3-1mamba
+- automatic version update by autodist
+
+* Wed Apr 03 2013 Automatic Build System <autodist@mambasoft.it> 4.10.2-1mamba
+- automatic version update by autodist
+
+* Tue Mar 05 2013 Automatic Build System <autodist@mambasoft.it> 4.10.1-1mamba
+- automatic version update by autodist
+
+* Wed Feb 13 2013 Automatic Build System <autodist@mambasoft.it> 4.10.0-1mamba
+- automatic version update by autodist
+
+* Thu Jan 03 2013 Automatic Build System <autodist@mambasoft.it> 4.9.5-1mamba
+- automatic version update by autodist
+
+* Wed Dec 05 2012 Automatic Build System <autodist@mambasoft.it> 4.9.4-1mamba
+- automatic version update by autodist
+
+* Thu Nov 08 2012 Automatic Build System <autodist@mambasoft.it> 4.9.3-1mamba
+- automatic version update by autodist
+
+* Thu Oct 04 2012 Automatic Build System <autodist@mambasoft.it> 4.9.2-1mamba
+- automatic version update by autodist
+
+* Thu Sep 06 2012 Automatic Build System <autodist@mambasoft.it> 4.9.1-1mamba
+- automatic version update by autodist
+
+* Sat Aug 18 2012 Automatic Build System <autodist@mambasoft.it> 4.9.0-1mamba
+- automatic version update by autodist
+
+* Sun Jun 10 2012 Automatic Build System <autodist@mambasoft.it> 4.8.4-1mamba
+- automatic version update by autodist
+
+* Fri Jun 01 2012 Silvan Calarco <silvan.calarco@mambasoft.it> 4.8.3-2mamba
+- provide kcalc4
+
+* Sat May 05 2012 Automatic Build System <autodist@mambasoft.it> 4.8.3-1mamba
+- automatic version update by autodist
+
+* Fri Apr 13 2012 Davide Madrisan <davide.madrisan@gmail.com> 4.8.2-1mamba
+- package created by autospec