diff --git a/README.md b/README.md
index 36cad28..bbe76df 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # perl-Math-GMP
 
+Math::GMP gives you access to the fast GMP library for fast big integer math.
+
diff --git a/perl-Math-GMP.spec b/perl-Math-GMP.spec
new file mode 100644
index 0000000..86c7735
--- /dev/null
+++ b/perl-Math-GMP.spec
@@ -0,0 +1,65 @@
+%define perl_major_ver %(eval `perl -V:version`; echo ${version%*.[0-9]*}.0)
+
+Name:          perl-Math-GMP
+Version:       2.04
+Release:       4mamba
+Summary:       Math::GMP - High speed arbitrary size integer math
+Group:         Development/Libraries/Perl
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           http://www.cpan.org
+Source:        http://www.cpan.org/authors/id/C/CH/CHIPT/Math-GMP-%{version}.tar.gz
+License:       GPL
+BuildRequires: perl-devel >= %perl_major_ver
+BuildRequires: libgmp-devel
+Requires:      perl >= %perl_major_ver
+BuildRoot:     %{_tmppath}/perl-root
+
+%description
+Math::GMP gives you access to the fast GMP library for fast big integer math.
+
+%prep
+%setup -q -n Math-GMP-%{version}
+
+%build
+perl Makefile.PL PREFIX=%{_prefix} INSTALLDIRS=vendor
+
+%make
+make test
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+%makeinstall_perl
+packlist=`find %{buildroot} -name .packlist`
+[ -z "$packlist" ] && exit 1 || cat $packlist | \
+   sed "s,%buildroot,,g;s,.*/man/.*,&.gz,g" | \
+   sort -u > .packlist && rm $packlist
+
+strid=`echo $packlist | sed 's,.*auto\(.*\)/.packlist,\1,'`
+for dir in `find %{buildroot} -type d | grep $strid`; do
+   echo "%dir ${dir#%buildroot}" >> .packlist
+done
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+rm -f .packlist
+
+%files -f .packlist
+%defattr(-,root,root)
+
+%changelog
+* Mon Nov 12 2012 Silvan Calarco <silvan.calarco@mambasoft.it> 2.04-4mamba
+- perl 5.16 mass rebuild
+
+* Mon Jul 12 2010 Automatic Build System <autodist@mambasoft.it> 2.04-3mamba
+- automatic rebuild by autodist
+
+* Wed Nov 05 2008 Silvan Calarco <silvan.calarco@mambasoft.it> 2.04-2mamba
+- automatic rebuild by autodist
+
+* Fri Sep 14 2007 Aleph0 <aleph0@openmamba.org> 2.04-1mamba
+- update to 2.04
+
+* Thu May 06 2004 Silvan Calarco <silvan.calarco@mambasoft.it> 2.03-1qilnx
+- first build