diff --git a/.gitignore b/.gitignore
index e69de29..d7d4e99 100644
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1 @@
+hyph-cy.tex
diff --git a/hyphen-cy-cleantex.patch b/hyphen-cy-cleantex.patch
new file mode 100644
index 0000000..ed98b7b
--- /dev/null
+++ b/hyphen-cy-cleantex.patch
@@ -0,0 +1,15 @@
+--- hyph-cy.tex.orig	2009-06-13 19:28:14.000000000 +0100
++++ hyph-cy.tex	2009-06-13 19:28:42.000000000 +0100
+@@ -23,7 +23,6 @@
+ % - 1996 - last change to patterns
+ % - 2008 - inclusion into hyph-utf8 and file rename (cyhyph.tex -> hyph-cy.tex)
+ % - June 2011 - added LPPL licence
+-\patterns{
+ .ac4t
+ .ad3ae
+ .add5as
+@@ -6752,4 +6751,3 @@
+ ywy3na
+ ywy5ne
+ y1y
+-}
diff --git a/hyphen-cy.spec b/hyphen-cy.spec
new file mode 100644
index 0000000..19b113d
--- /dev/null
+++ b/hyphen-cy.spec
@@ -0,0 +1,103 @@
+Name: hyphen-cy
+Summary: Welsh hyphenation rules
+%global upstreamid 20110620
+Version: 0.%{upstreamid}
+Release: 17%{?dist}
+#? in a url causes trouble
+#http://tug.org/svn/texhyphen/trunk/hyph-utf8/tex/generic/hyph-utf8/patterns/tex/hyph-cy.tex?view=co
+Source: hyph-cy.tex
+URL: http://tug.org/tex-hyphen
+License: LPPL
+BuildArch: noarch
+BuildRequires: hyphen-devel
+Requires: hyphen
+Supplements: (hyphen and langpacks-cy)
+Patch0: hyphen-cy-cleantex.patch
+
+%description
+Welsh hyphenation rules.
+
+%prep
+%setup -T -q -c -n hyphen-cy
+cp -p %{SOURCE0} .
+%patch0 -p0 -b .clean
+
+%build
+substrings.pl hyph-cy.tex hyph_cy_GB.dic ISO8859-1
+echo "Created with substring.pl by substrings.pl hyph-cy.tex hyph_cy_GB.dic ISO8859-1" > README
+echo "---" >> README
+head -n 25 hyph-cy.tex >> README
+
+%install
+mkdir -p $RPM_BUILD_ROOT/%{_datadir}/hyphen
+cp -p hyph_cy_GB.dic $RPM_BUILD_ROOT/%{_datadir}/hyphen
+
+
+%files
+%doc README
+%{_datadir}/hyphen/*
+
+%changelog
+* Tue Jul 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.20110620-17
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
+
+* Wed Jan 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.20110620-16
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild
+
+* Thu Jul 25 2019 Fedora Release Engineering <releng@fedoraproject.org> - 0.20110620-15
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
+
+* Fri Feb 01 2019 Fedora Release Engineering <releng@fedoraproject.org> - 0.20110620-14
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild
+
+* Fri Jul 13 2018 Fedora Release Engineering <releng@fedoraproject.org> - 0.20110620-13
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild
+
+* Wed Feb 07 2018 Fedora Release Engineering <releng@fedoraproject.org> - 0.20110620-12
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
+
+* Wed Jul 26 2017 Fedora Release Engineering <releng@fedoraproject.org> - 0.20110620-11
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
+* Fri Feb 10 2017 Fedora Release Engineering <releng@fedoraproject.org> - 0.20110620-10
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
+
+* Fri Feb 19 2016 Parag Nemade <pnemade AT redhat DOT com> - 0.20110620-9
+- Add Supplements: tag for langpacks naming guidelines
+- Clean the specfile to follow current packaging guidelines
+
+* Thu Feb 04 2016 Fedora Release Engineering <releng@fedoraproject.org> - 0.20110620-8
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild
+
+* Wed Jun 17 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.20110620-7
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild
+
+* Sat Jun 07 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.20110620-6
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
+
+* Sat Aug 03 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.20110620-5
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_20_Mass_Rebuild
+
+* Thu Feb 14 2013 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.20110620-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_19_Mass_Rebuild
+
+* Thu Jul 19 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.20110620-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_18_Mass_Rebuild
+
+* Fri Jan 13 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.20110620-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_17_Mass_Rebuild
+
+* Mon Oct 17 2011 Caolán McNamara <caolanm@redhat.com> - 0.20110620-1
+- latest version
+
+* Wed Feb 09 2011 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.20100531-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_15_Mass_Rebuild
+
+* Tue Jun 01 2010 Caolán McNamara <caolanm@redhat.com> - 0.20100531-1
+- latest version
+
+* Fri Jul 24 2009 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.20080619-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_12_Mass_Rebuild
+
+* Sat Jun 13 2009 Caolán McNamara <caolanm@redhat.com> - 0.20080619-1
+- initial version
diff --git a/sources b/sources
new file mode 100644
index 0000000..f7812c6
--- /dev/null
+++ b/sources
@@ -0,0 +1 @@
+8913088f68680dc7c02b82e3c1b42f72  hyph-cy.tex