diff --git a/README.md b/README.md
index 8ee697a..7ec7cc5 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,6 @@
 # perl-Parse-Yapp
 
+Parse::Yapp (Yet Another Perl Parser compiler) is a collection of modules that let you generate and use yacc like thread safe (reentrant) parsers with perl object oriented interface.
+
+The script yapp is a front-end to the Parse::Yapp module and let you easily create a Perl OO parser from an input grammar file.
+
diff --git a/perl-Parse-Yapp.spec b/perl-Parse-Yapp.spec
new file mode 100644
index 0000000..f038c50
--- /dev/null
+++ b/perl-Parse-Yapp.spec
@@ -0,0 +1,64 @@
+%define        perl_major_ver %(eval `perl -V:version`; echo ${version%*.[0-9]*}.0)
+
+Name:          perl-Parse-Yapp
+Version:       1.05
+Release:       5mamba
+Summary:       Parse::Yapp - Perl extension for generating and using LALR parsers
+Group:         System/Libraries/Perl
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           http://www.cpan.org
+Source:        http://search.cpan.org/CPAN/authors/id/F/FD/FDESAR/Parse-Yapp-%{version}.tar.gz
+License:       Artistic, GPL
+BuildRequires: perl-devel >= %perl_major_ver
+Requires:      perl >= %perl_major_ver
+BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+
+%description
+Parse::Yapp (Yet Another Perl Parser compiler) is a collection of modules that let you generate and use yacc like thread safe (reentrant) parsers with perl object oriented interface.
+
+The script yapp is a front-end to the Parse::Yapp module and let you easily create a Perl OO parser from an input grammar file.
+
+%prep
+%setup -q -n Parse-Yapp-%{version}
+
+%build
+perl Makefile.PL PREFIX=%{_prefix} INSTALLDIRS=vendor
+%make test
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+%makeinstall_perl
+packlist=`find %{buildroot} -name .packlist`
+[ -z "$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> 1.05-5mamba
+- perl 5.16 mass rebuild
+
+* Sun Jul 01 2012 Silvan Calarco <silvan.calarco@mambasoft.it> 1.05-4mamba
+- specfile and maintainer updated
+
+* Wed Nov 05 2008 Silvan Calarco <silvan.calarco@mambasoft.it> 1.05-3mamba
+- automatic rebuild by autodist
+
+* Wed Jul 26 2006 Stefano Cotta Ramusino <stefano.cotta@qilinux.it> 1.05-2qilnx
+- specfile fixed and updated
+
+* Thu Oct 28 2004 Alessandro Ramazzina <alessandro.ramazzina@qilinux.it> 1.05-1qilnx
+- package created by autospec