diff --git a/.gitignore b/.gitignore
index e69de29..f18dbc3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/libaec-1.0.0.tar.gz
+/libaec-*.src.rpm
diff --git a/libaec.spec b/libaec.spec
new file mode 100644
index 0000000..4d4ad19
--- /dev/null
+++ b/libaec.spec
@@ -0,0 +1,68 @@
+Name:           libaec
+Version:        1.0.0
+Release:        2%{?dist}
+Summary:        Adaptive Entropy Coding library
+License:        BSD
+Url:            https://gitlab.dkrz.de/k202009/libaec
+Source:         https://gitlab.dkrz.de/k202009/libaec/uploads/631e85bcf877c2dcaca9b2e6d6526339/libaec-1.0.0.tar.gz
+
+BuildRequires:  cmake
+
+%description
+Libaec provides fast loss-less compression of 1 up to 32 bit wide
+signed or unsigned integers (samples). The library achieves best
+results for low entropy data as often encountered in space imaging
+instrument data or numerical model output from weather or climate
+simulations. While floating point representations are not directly
+supported, they can also be efficiently coded by grouping exponents
+and mantissa.
+
+Libaec implements Golomb Rice coding as defined in the Space Data
+System Standard documents 121.0-B-2 and 120.0-G-2.
+
+Libaec includes a free drop-in replacement for the SZIP
+library (http://www.hdfgroup.org/doc_resource/SZIP).
+
+%package devel
+Summary:        Devel package for libaec (Adaptive Entropy Coding library)
+Requires:       %{name}%{?_isa} = %{version}-%{release}
+
+%description devel
+Devel files for libaec (Adaptive Entropy Coding library).
+
+%prep
+%setup -q
+
+%build
+mkdir build
+pushd build
+%cmake ..
+%make_build
+popd
+
+%install
+%make_install -C build
+[ %{_lib} = lib ] || mv $RPM_BUILD_ROOT/%{_prefix}/{lib,%{_lib}}
+
+%check
+make -C build test 
+
+%post -p /sbin/ldconfig
+%postun -p /sbin/ldconfig
+
+%files
+%doc README README.SZIP ChangeLog
+%license COPYING doc/patent.txt
+%{_bindir}/aec
+%{_libdir}/lib*.so.*
+
+%files devel
+%{_includedir}/*.h
+%{_libdir}/lib*.so
+
+%changelog
+* Wed Jun 21 2017 Christoph Junghans <junghans@votca.org> - 1.0.0-2
+- comments from review #1462443
+
+* Sat Jun 17 2017 Christoph Junghans <junghans@votca.org> - 1.0.0-1
+- initial import
diff --git a/sources b/sources
index e69de29..4bef73c 100644
--- a/sources
+++ b/sources
@@ -0,0 +1 @@
+SHA512 (libaec-1.0.0.tar.gz) = 112ded6151e46a90adfe230d8298452b2e42105e0e9d40ce10ac49f1e0160a13fa7ddec22e22346f0d5defc397bbba7c12f9d58b08e024da19991108e6e8d8ba