diff --git a/README.md b/README.md
index a283909..34918c2 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # rawtherapee
 
+RawTherapee is a cross platform image processing software equipped with the essential tools for high quality and efficient RAW photo development.
+
diff --git a/rawtherapee.spec b/rawtherapee.spec
new file mode 100644
index 0000000..f5a52bb
--- /dev/null
+++ b/rawtherapee.spec
@@ -0,0 +1,123 @@
+Name:          rawtherapee
+Version:       4.0.12
+Release:       1mamba
+Summary:       A powerful open source RAW converter
+Group:         Graphical Desktop/Applications/Graphics
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      openmamba WebBuild System <webbuild@openmamba.org>
+URL:           http://rawtherapee.com/
+Source:        http://rawtherapee.com/shared/source/rawtherapee-%{version}.tar.xz
+License:       GPL
+## AUTOBUILDREQ-BEGIN
+BuildRequires: glibc-devel
+BuildRequires: libatk-devel
+BuildRequires: libatkmm-devel
+BuildRequires: libbzip2-devel
+BuildRequires: libcairo-devel
+BuildRequires: libcairomm-devel
+BuildRequires: libexpat-devel
+BuildRequires: libfontconfig-devel
+BuildRequires: libfreetype-devel
+BuildRequires: libgcc
+BuildRequires: libgdk-pixbuf-devel
+BuildRequires: libglib-devel
+BuildRequires: libglibmm-devel
+BuildRequires: libgomp-devel
+BuildRequires: libgtk2-devel
+BuildRequires: libgtkmm2-devel
+BuildRequires: libjpeg-devel
+BuildRequires: liblcms2-devel
+BuildRequires: libpango-devel
+BuildRequires: libpangomm-devel
+BuildRequires: libpng-devel
+BuildRequires: libsigc++-devel
+BuildRequires: libstdc++6-devel
+BuildRequires: libtiff-devel
+BuildRequires: libz-devel
+BuildRequires: libiptcdata-devel
+## AUTOBUILDREQ-END
+BuildRequires: cmake
+BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+
+%description
+RawTherapee is a cross platform image processing software equipped with the essential tools for high quality and efficient RAW photo development.
+
+%debug_package
+
+%prep
+%setup -q
+
+%build
+%cmake -d build
+%make
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+%makeinstall -C build
+mkdir %{buildroot}%{_libdir}
+mv %{buildroot}/usr%{_libdir}/librtengine.so %{buildroot}%{_libdir}/
+mv %{buildroot}/usr%{_libdir}/librtexif.so %{buildroot}%{_libdir}/
+
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%files
+%defattr(-,root,root)
+%{_bindir}/camconst.json
+%{_bindir}/rawtherapee
+%{_libdir}/librtengine.so
+%{_libdir}/librtexif.so
+%{_datadir}/applications/rawtherapee.desktop
+%{_datadir}/icons/hicolor/*/apps/rawtherapee.png
+%dir %{_datadir}/rawtherapee
+%dir %{_datadir}/rawtherapee/dcpprofiles
+%{_datadir}/rawtherapee/dcpprofiles/*.dcp
+%{_datadir}/rawtherapee/iccprofiles/input/*.icc
+%{_datadir}/rawtherapee/iccprofiles/output/*.icc
+%{_datadir}/rawtherapee/iccprofiles/output/*.icm
+%dir %{_datadir}/rawtherapee/images
+%{_datadir}/rawtherapee/images/*.png
+%{_datadir}/rawtherapee/images/Dark/actions/*.png
+%{_datadir}/rawtherapee/images/Dark/devices/*.png
+%{_datadir}/rawtherapee/images/Dark/index.theme
+%{_datadir}/rawtherapee/images/Dark/places/*.png
+%{_datadir}/rawtherapee/images/Light/actions/*.png
+%{_datadir}/rawtherapee/images/Light/devices/*.png
+%{_datadir}/rawtherapee/images/Light/index.theme
+%{_datadir}/rawtherapee/images/Light/places/*.png
+%dir %{_datadir}/rawtherapee/languages
+%{_datadir}/rawtherapee/languages/*
+%{_datadir}/rawtherapee/options
+%dir %{_datadir}/rawtherapee/profiles
+%{_datadir}/rawtherapee/profiles/*
+%{_datadir}/rawtherapee/sounds/*.wav
+%{_datadir}/rawtherapee/themes/*.gtkrc
+%{_datadir}/rawtherapee/themes/*.iconset
+%{_datadir}/rawtherapee/themes/gray_textured/*.png
+%{_datadir}/rawtherapee/themes/gray_textured/*.xcf
+%{_datadir}/rawtherapee/themes/slim
+%{_datadir}/rawtherapee/themes/system.iconset
+%{_datadir}/doc/rawtherapee/*.txt
+%{_mandir}/man1/rawtherapee.1*
+
+%changelog
+* Sat Feb 22 2014 Silvan Calarco <silvan.calarco@mambasoft.it> 4.0.12-1mamba
+- update to 4.0.12
+
+* Sat Feb 01 2014 Silvan Calarco <silvan.calarco@mambasoft.it> 4.0.11-1mamba
+- update to 4.0.11
+
+* Sun Oct 20 2013 Silvan Calarco <silvan.calarco@mambasoft.it> 4.0.9-4mamba
+- fixed librtengine and librtexif destination
+
+* Sun Jan 06 2013 openmamba WebBuild System <webbuild@openmamba.org> 4.0.9-3mamba
+- fix typo in package group
+
+* Thu Aug 30 2012 Ercole 'ercolinux' Carpanetto <ercole69@gmail.com> 4.0.9-2mamba
+- fixed Summary description
+
+* Wed Aug 29 2012 openmamba WebBuild System <webbuild@openmamba.org> 4.0.9-1mamba
+- package created by autospec
+