diff --git a/.gitignore b/.gitignore
index e69de29..0f6f7bf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1 @@
+/libxc-1.0.tar.gz
diff --git a/libxc.spec b/libxc.spec
new file mode 100644
index 0000000..965a977
--- /dev/null
+++ b/libxc.spec
@@ -0,0 +1,91 @@
+Name:		libxc
+Summary:	Library of exchange and correlation functionals to be used in DFT codes
+Version:	1.0
+Release:	4%{?dist}
+License:	LGPLv3+
+Group:		Applications/Engineering
+BuildRoot:	%{_tmppath}/%{name}-%{version}-buildroot
+Source:		http://www.tddft.org/programs/octopus/down.php?file=libxc/libxc-%{version}.tar.gz
+URL:		http://www.tddft.org/programs/octopus/wiki/index.php/Libxc
+
+BuildRequires:	gcc-gfortran
+
+%description 
+libxc is a library of exchange and correlation functionals. Its purpose is to
+be used in codes that implement density-functional theory. For the moment, the
+library includes most of the local density approximations (LDAs), generalized
+density approximation (GGAs), and meta-GGAs. The library provides values for
+the energy density and its 1st, 2nd, and (for the LDAs) 3rd derivatives.
+
+%package devel
+Summary:	Development library and headers for libxc
+Group:		Development/Libraries
+Requires:	%{name} = %{version}-%{release}
+Requires:	pkgconfig
+%if 0%{?fedora} >11 || 0%{?rhel} > 5
+# Old versions don't have the 32-bit gfortran compiler, and the Fortran part 
+# of the multilib'd devel package won't work in any case since Fortran modules
+# are architecture and compiler version dependent.
+Requires:	gcc-gfortran%{_isa}
+%endif
+
+%description devel
+libxc is a library of exchange and correlation functionals. Its purpose is to
+be used in codes that implement density-functional theory. For the moment, the
+library includes most of the local density approximations (LDAs), generalized
+density approximation (GGAs), and meta-GGAs. The library provides values for
+the energy density and its 1st, 2nd, and (for the LDAs) 3rd derivatives.
+
+This package contains the development headers and library that are necessary
+in order to compile programs against libxc.
+
+%prep
+%setup -q
+
+%build
+%configure --enable-shared --disable-static
+# SMP make is not working.
+#make %{?_smp_mflags}
+make
+
+%install
+rm -rf %{buildroot}
+make install DESTDIR=%{buildroot}
+# Move modules in the right place
+mkdir -p %{buildroot}%{_fmoddir}
+mv %{buildroot}%{_includedir}/*.mod %{buildroot}%{_fmoddir}
+# Get rid of .la files
+find %{buildroot}%{_libdir} -name *.la -exec rm -rf {} \;
+
+%clean
+rm -rf %{buildroot}
+
+%post -p /sbin/ldconfig
+%postun -p /sbin/ldconfig
+
+%files
+%defattr(-,root,root,-)
+%doc README NEWS COPYING AUTHORS ChangeLog TODO
+%{_libdir}/libxc.so.*
+
+%files devel
+%defattr(-,root,root,-)
+%{_libdir}/libxc.so
+%{_includedir}/xc*.h
+%{_fmoddir}/libxc_funcs_m.mod
+%{_fmoddir}/xc_f90_*.mod
+%{_libdir}/pkgconfig/libxc.pc
+
+%changelog
+* Sun Jan 23 2011 Jussi Lehtola <jussilehtola@fedoraproject.org> - 1.0-4
+- Clean buildroot at the beginning of %%install.
+
+* Sun Jan 23 2011 Jussi Lehtola <jussilehtola@fedoraproject.org> - 1.0-3
+- Update tarball.
+- Make requirement on gcc-gfortran in -devel architecture explicit.
+
+* Sat Jan 22 2011 Jussi Lehtola <jussilehtola@fedoraproject.org> - 1.0-2
+- Minor review fixes.
+
+* Tue Jan 18 2011 Jussi Lehtola <jussilehtola@fedoraproject.org> - 1.0-1
+- Initial specfile.
diff --git a/sources b/sources
index e69de29..3f496f9 100644
--- a/sources
+++ b/sources
@@ -0,0 +1 @@
+4a8ef0c8fccc695e65466ec1a8878280  libxc-1.0.tar.gz