diff --git a/README.md b/README.md
index b64b9c4..6517c07 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # docbook5-schemas
 
+Docbook 5.X is a complete rewrite of Docbook in RELAX NG and not compatible with previous Docbook versions. This package contains Relax NG , DTD and W3C schema for Docbook 5.X. Syntax of those schemas is XML-compliant and is developed by the OASIS consortium.
+
diff --git a/docbook5-schemas.spec b/docbook5-schemas.spec
new file mode 100644
index 0000000..a150d3f
--- /dev/null
+++ b/docbook5-schemas.spec
@@ -0,0 +1,348 @@
+Name:          docbook5-schemas
+Version:       5.1
+Release:       1mamba
+Summary:       Norman Walsh's schemas (DTD, Relax NG, W3C schema) for Docbook 5.X
+Group:         Applications/Publishing
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           http://www.oasis-open.org/docbook/
+Source:        http://www.docbook.org/xml/5.1/docbook-v%{version}-os.zip
+Source1:       http://www.docbook.org/xml/%{version}/docbook-5.0.zip
+License:       Distributable
+## AUTOBUILDREQ-BEGIN
+BuildRequires: perl-devel
+## AUTOBUILDREQ-END
+BuildRequires: libxml2-devel
+BuildRequires: xml-common
+BuildRequires: libxml2-utils
+BuildRequires: unzip
+Requires:      libxml2
+Requires:      xml-common
+Provides:      docbook-dtd = %{version}-%{release}
+Provides:      docbook-rng = %{version}-%{release}
+Provides:      docbook-sch = %{version}-%{release}
+Provides:      docbook-xsd = %{version}-%{release}
+Provides:      docbook-dtds-5-schemas
+Obsoletes:     docbook-dtds-5-schemas < 5.1
+
+%description
+Docbook 5.X is a complete rewrite of Docbook in RELAX NG and not compatible with previous Docbook versions. This package contains Relax NG , DTD and W3C schema for Docbook 5.X. Syntax of those schemas is XML-compliant and is developed by the OASIS consortium.
+
+%prep
+%setup -c -T
+# From Fedora
+
+#Unzip Docbook 5.0 specification
+mkdir 5.0
+cd 5.0
+unzip %{SOURCE1}
+mv docbook-5.0/* .
+#Prepare docs to right place
+mv docs/ ../
+mv README ../
+mv ChangeLog ../
+cd ..
+
+#Unzip Docbook 5.1 specification
+mkdir 5.1
+cd 5.1
+unzip %{SOURCE0}
+mv schemas/rng .
+mv schemas/sch .
+mv schemas/catalog.xml .
+mv schemas/docbook.nvdl .
+cd ..
+
+%build
+CATALOG=docbook-5.xml
+%{_bindir}/xmlcatalog --create --noout $CATALOG
+for v in 5.0
+do
+  # DTD
+  %{_bindir}/xmlcatalog --noout --add "public" \
+     "-//OASIS//DTD DocBook XML ${v}//EN" \
+     "file://%{_datadir}/xml/docbook5/schema/dtd/${v}/docbook.dtd" ${CATALOG}
+  %{_bindir}/xmlcatalog --noout --add "system" \
+     "http://www.oasis-open.org/docbook/xml/${v}/dtd/docbook.dtd" \
+     "file://%{_datadir}/xml/docbook5/schema/dtd/${v}/docbook.dtd" ${CATALOG}
+  %{_bindir}/xmlcatalog --noout --add "system" \
+     "http://docbook.org/xml/${v}/dtd/docbook.dtd" \
+     "file://%{_datadir}/xml/docbook5/schema/dtd/${v}/docbook.dtd" ${CATALOG}
+  # XSD
+  %{_bindir}/xmlcatalog --noout --add "uri" \
+     "http://www.oasis-open.org/docbook/xml/${v}/xsd/docbook.xsd" \
+     "file://%{_datadir}/xml/docbook5/schema/xsd/${v}/docbook.xsd" ${CATALOG}
+  %{_bindir}/xmlcatalog --noout --add "uri" \
+     "http://docbook.org/xml/${v}/xsd/docbook.xsd" \
+     "file://%{_datadir}/xml/docbook5/schema/xsd/${v}/docbook.xsd" ${CATALOG}
+  # XSD + XInclude
+  %{_bindir}/xmlcatalog --noout --add "uri" \
+     "http://www.oasis-open.org/docbook/xml/${v}/xsd/docbookxi.xsd" \
+     "file://%{_datadir}/xml/docbook5/schema/xsd/${v}/docbookxi.xsd" ${CATALOG}
+  %{_bindir}/xmlcatalog --noout --add "uri" \
+     "http://docbook.org/xml/${v}/xsd/docbookxi.xsd" \
+     "file://%{_datadir}/xml/docbook5/schema/xsd/${v}/docbookxi.xsd" ${CATALOG}
+  %{_bindir}/xmlcatalog --noout --add "uri" \
+     "http://www.oasis-open.org/docbook/xml/${v}/xsd/xi.xsd" \
+     "file://%{_datadir}/xml/docbook5/schema/xsd/${v}/xi.xsd" ${CATALOG}
+  %{_bindir}/xmlcatalog --noout --add "uri" \
+     "http://docbook.org/xml/${v}/xsd/xi.xsd" \
+     "file://%{_datadir}/xml/docbook5/schema/xsd/${v}/xi.xsd" ${CATALOG}
+  # XLink + XML
+  %{_bindir}/xmlcatalog --noout --add "uri" \
+     "http://www.oasis-open.org/docbook/xml/${v}/xsd/xlink.xsd" \
+     "file://%{_datadir}/xml/docbook5/schema/xsd/${v}/xlink.xsd" ${CATALOG}
+  %{_bindir}/xmlcatalog --noout --add "uri" \
+     "http://docbook.org/xml/${v}/xsd/xlink.xsd" \
+     "file://%{_datadir}/xml/docbook5/schema/xsd/${v}/xlink.xsd" ${CATALOG}
+  %{_bindir}/xmlcatalog --noout --add "uri" \
+     "http://www.oasis-open.org/docbook/xml/${v}/xsd/xml.xsd" \
+     "file://%{_datadir}/xml/docbook5/schema/xsd/${v}/xml.xsd" ${CATALOG}
+  %{_bindir}/xmlcatalog --noout --add "uri" \
+     "http://docbook.org/xml/${v}/xsd/xml.xsd" \
+     "file://%{_datadir}/xml/docbook5/schema/xsd/${v}/xml.xsd" ${CATALOG}
+done
+for v in 5.0 5.1
+do
+  # RNG
+  %{_bindir}/xmlcatalog --noout --add "uri" \
+     "http://www.oasis-open.org/docbook/xml/${v}/rng/docbook.rng" \
+     "file://%{_datadir}/xml/docbook5/schema/rng/${v}/docbook.rng" ${CATALOG}
+  %{_bindir}/xmlcatalog --noout --add "uri" \
+     "http://docbook.org/xml/${v}/rng/docbook.rng" \
+     "file://%{_datadir}/xml/docbook5/schema/rng/${v}/docbook.rng" ${CATALOG}
+  # RNG+XInclude
+  %{_bindir}/xmlcatalog --noout --add "uri" \
+     "http://www.oasis-open.org/docbook/xml/${v}/rng/docbookxi.rng" \
+     "file://%{_datadir}/xml/docbook5/schema/rng/${v}/docbookxi.rng" ${CATALOG}
+  %{_bindir}/xmlcatalog --noout --add "uri" \
+     "http://docbook.org/xml/${v}/rng/docbookxi.rng" \
+     "file://%{_datadir}/xml/docbook5/schema/rng/${v}/docbookxi.rng" ${CATALOG}
+  # RNC
+  %{_bindir}/xmlcatalog --noout --add "uri" \
+     "http://www.oasis-open.org/docbook/xml/${v}/rnc/docbook.rnc" \
+     "file://%{_datadir}/xml/docbook5/schema/rng/${v}/docbook.rnc" ${CATALOG}
+  %{_bindir}/xmlcatalog --noout --add "uri" \
+     "http://docbook.org/xml/${v}/rng/docbook.rnc" \
+     "file://%{_datadir}/xml/docbook5/schema/rng/${v}/docbook.rnc" ${CATALOG}
+  # RNC+XInclude
+  %{_bindir}/xmlcatalog --noout --add "uri" \
+     "http://www.oasis-open.org/docbook/xml/${v}/rnc/docbookxi.rnc" \
+     "file://%{_datadir}/xml/docbook5/schema/rng/${v}/docbookxi.rnc" ${CATALOG}
+  %{_bindir}/xmlcatalog --noout --add "uri" \
+     "http://docbook.org/xml/${v}/rng/docbookxi.rnc" \
+     "file://%{_datadir}/xml/docbook5/schema/rng/${v}/docbookxi.rnc" ${CATALOG}
+  # Schematron
+  %{_bindir}/xmlcatalog --noout --add "uri" \
+     "http://www.oasis-open.org/docbook/xml/${v}/sch/docbook.sch" \
+     "file://%{_datadir}/xml/docbook5/schema/sch/${v}/docbook.sch" ${CATALOG}
+  %{_bindir}/xmlcatalog --noout --add "uri" \
+     "http://docbook.org/xml/${v}/sch/docbook.sch" \
+     "file://%{_datadir}/xml/docbook5/schema/sch/${v}/docbook.sch" ${CATALOG}
+done
+# ---------------------
+# Build XML catalog files for each Schema
+for v in 5.0 5.1
+do
+  for s in rng sch; do
+   cat=${v}/${s}/catalog.xml
+   %{_bindir}/xmlcatalog --noout --create ${cat}
+   case $s in
+    sch)
+     %{_bindir}/xmlcatalog --noout --add "uri" \
+       "http://docbook.org/xml/${v}/${s}/docbook.${s}" \
+       "docbook.${s}" ${cat}
+     %{_bindir}/xmlcatalog --noout --add "uri" \
+       "http://www.oasis-open.org/docbook/xml/${v}/${s}/docbook.${s}" \
+       "docbook.${s}" ${cat}
+     ;;
+    rng)
+     %{_bindir}/xmlcatalog --noout --add "uri" \
+       "http://docbook.org/xml/${v}/${s}/docbook.${s}" \
+       "docbook.${s}" ${cat}
+     %{_bindir}/xmlcatalog --noout --add "uri" \
+       "http://www.oasis-open.org/docbook/xml/${v}/${s}/docbook.${s}" \
+       "docbook.${s}" ${cat}
+     %{_bindir}/xmlcatalog --noout --add "uri" \
+       "http://docbook.org/xml/${v}/${s}/docbookxi.${s}" \
+       "docbookxi.${s}" ${cat}
+     %{_bindir}/xmlcatalog --noout --add "uri" \
+       "http://www.oasis-open.org/docbook/xml/${v}/${s}/docbookxi.${s}" \
+       "docbookxi.${s}" ${cat}
+     %{_bindir}/xmlcatalog --noout --add "uri" \
+       "http://docbook.org/xml/${v}/${s}/docbook.rnc" \
+       "docbook.rnc" ${cat}
+     %{_bindir}/xmlcatalog --noout --add "uri" \
+       "http://www.oasis-open.org/docbook/xml/${v}/${s}/docbook.rnc" \
+       "docbook.rnc" ${cat}
+     %{_bindir}/xmlcatalog --noout --add "uri" \
+       "http://docbook.org/xml/${v}/${s}/docbookxi.rnc" \
+       "docbookxi.rnc" ${cat}
+     %{_bindir}/xmlcatalog --noout --add "uri" \
+       "http://www.oasis-open.org/docbook/xml/${v}/${s}/docbookxi.rnc" \
+       "docbookxi.rnc" ${cat}
+     ;;
+   esac
+  done
+done
+for v in 5.0
+do
+  for s in dtd xsd; do
+   cat=${v}/${s}/catalog.xml
+   %{_bindir}/xmlcatalog --noout --create ${cat}
+   case $s in
+    dtd)
+     %{_bindir}/xmlcatalog --noout --add "public" \
+       "-//OASIS//DTD DocBook XML ${v}//EN" \
+       "docbook.dtd" ${cat}
+     %{_bindir}/xmlcatalog --noout --add "system" \
+       "http://www.oasis-open.org/docbook/xml/${v}/dtd/docbook.dtd" \
+       "docbook.dtd" ${cat}
+     ;;
+    xsd)
+     # http://www.oasis-open.org/docbook/xml/5.0/xsd/docbookxi.xsd
+     # http://www.oasis-open.org/docbook/xml/5.0/xsd/xlink.xsd
+     %{_bindir}/xmlcatalog --noout --add "uri" \
+       "http://docbook.org/xml/${v}/${s}/docbook.${s}" \
+       "docbook.${s}" ${cat}
+     %{_bindir}/xmlcatalog --noout --add "uri" \
+       "http://www.oasis-open.org/docbook/xml/${v}/${s}/docbook.${s}" \
+       "docbook.${s}" ${cat}
+     %{_bindir}/xmlcatalog --noout --add "uri" \
+       "http://docbook.org/xml/${v}/${s}/docbookxi.${s}" \
+       "docbookxi.${s}" ${cat}
+     %{_bindir}/xmlcatalog --noout --add "uri" \
+       "http://www.oasis-open.org/docbook/xml/${v}/${s}/docbookxi.${s}" \
+       "docbookxi.${s}" ${cat}
+     # XLink + XML:
+     %{_bindir}/xmlcatalog --noout --add "uri" \
+       "http://docbook.org/xml/${v}/${s}/xlink.xsd" \
+       "xlink.xsd" ${cat}
+     %{_bindir}/xmlcatalog --noout --add "uri" \
+       "http://www.oasis-open.org/docbook/xml/${v}/${s}/xlink.xsd" \
+       "xlink.xsd" ${cat}
+     %{_bindir}/xmlcatalog --noout --add "uri" \
+       "http://docbook.org/xml/${v}/${s}/xml.xsd" \
+       "xml.xsd" ${cat}
+     %{_bindir}/xmlcatalog --noout --add "uri" \
+       "http://www.oasis-open.org/docbook/xml/${v}/${s}/xml.xsd" \
+       "xml.xsd" ${cat}
+     ;;
+   esac
+  done
+done
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+DOCBOOK5DIR=%{buildroot}%{_datadir}/xml/docbook5
+for v in 5.0 5.1
+do
+mkdir -p ${DOCBOOK5DIR}/schema/rng/$v
+mkdir -p ${DOCBOOK5DIR}/schema/sch/$v
+install -m644 $v/rng/* ${DOCBOOK5DIR}/schema/rng/$v
+install -m644 $v/sch/* ${DOCBOOK5DIR}/schema/sch/$v
+done
+mkdir -p ${DOCBOOK5DIR}/schema/dtd/5.0
+mkdir -p ${DOCBOOK5DIR}/schema/xsd/5.0
+install -m644 5.0/dtd/* ${DOCBOOK5DIR}/schema/dtd/5.0
+install -m644 5.0/xsd/* ${DOCBOOK5DIR}/schema/xsd/5.0
+mkdir -p %{buildroot}%{_bindir}
+install -m755 %{version}/tools/db4-entities.pl $RPM_BUILD_ROOT%{_bindir}
+mkdir -p ${DOCBOOK5DIR}/stylesheet/upgrade
+install -m644 %{version}/tools/db4-upgrade.xsl ${DOCBOOK5DIR}/stylesheet/upgrade
+
+mkdir -p %{buildroot}%{_sysconfdir}/xml
+install -m644 docbook-5.xml %{buildroot}%{_sysconfdir}/xml/docbook-5.xml
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%post
+ROOTCATALOG=%{_sysconfdir}/xml/catalog
+if [ -w $ROOTCATALOG ]
+then
+  for v in 5.0 5.1
+  do
+  %{_bindir}/xmlcatalog --noout --add "delegatePublic" \
+    "-//OASIS//DTD DocBook XML ${v}//EN" \
+    "file://%{_datadir}/xml/docbook5/schema/dtd/${v}/catalog.xml" \
+    $ROOTCATALOG
+  %{_bindir}/xmlcatalog --noout --add "delegateURI" \
+    "http://docbook.org/xml/${v}/rng/"  \
+    "file://%{_datadir}/xml/docbook5/schema/rng/${v}/catalog.xml" \
+    $ROOTCATALOG
+  %{_bindir}/xmlcatalog --noout --add "delegateURI" \
+    "http://docbook.org/xml/${v}/sch/"  \
+    "file://%{_datadir}/xml/docbook5/schema/sch/${v}/catalog.xml" \
+    $ROOTCATALOG
+   done
+  %{_bindir}/xmlcatalog --noout --add "delegateURI" \
+    "http://docbook.org/xml/5.0/xsd/"  \
+    "file://%{_datadir}/xml/docbook5/schema/xsd/${v}/catalog.xml" \
+    $ROOTCATALOG
+  %{_bindir}/xmlcatalog --noout --add "delegateSystem" \
+    "http://docbook.org/xml/5.0/dtd/" \
+    "file://%{_datadir}/xml/docbook5/schema/dtd/${v}/catalog.xml" \
+    $ROOTCATALOG
+  %{_bindir}/xmlcatalog --noout --add "delegateURI" \
+    "http://docbook.org/xml/5.0/dtd/" \
+    "file://%{_datadir}/xml/docbook5/schema/dtd/${v}/catalog.xml" \
+    $ROOTCATALOG
+fi
+
+%postun
+if [ "$1" = 0 ]; then
+  ROOTCATALOG=%{_sysconfdir}/xml/catalog
+  if [ -w $ROOTCATALOG ]
+  then
+    for v in 5.0 5.1
+    do
+       %{_bindir}/xmlcatalog --noout --del \
+       "file://%{_datadir}/xml/docbook5/schema/rng/${v}/catalog.xml" \
+       $ROOTCATALOG
+       %{_bindir}/xmlcatalog --noout --del \
+       "file://%{_datadir}/xml/docbook5/schema/sch/${v}/catalog.xml" \
+       $ROOTCATALOG
+     done
+      %{_bindir}/xmlcatalog --noout --del \
+       "file://%{_datadir}/xml/docbook5/schema/dtd/5.0/catalog.xml" \
+       $ROOTCATALOG
+      %{_bindir}/xmlcatalog --noout --del \
+       "file://%{_datadir}/xml/docbook5/schema/xsd/5.0/catalog.xml" \
+       $ROOTCATALOG
+
+  fi
+fi
+
+%files
+%defattr(-,root,root)
+%config(noreplace) %verify(not md5 size mtime) %{_sysconfdir}/xml/docbook-5.xml
+%{_bindir}/db4-entities.pl
+%dir %{_datadir}/xml/docbook5/
+%dir %{_datadir}/xml/docbook5/schema
+%dir %{_datadir}/xml/docbook5/schema/dtd
+%dir %{_datadir}/xml/docbook5/schema/rng
+%dir %{_datadir}/xml/docbook5/schema/sch
+%dir %{_datadir}/xml/docbook5/schema/xsd
+%dir %{_datadir}/xml/docbook5/stylesheet
+%dir %{_datadir}/xml/docbook5/stylesheet/upgrade
+%{_datadir}/xml/docbook5/schema/dtd/5.0
+%{_datadir}/xml/docbook5/schema/xsd/5.0
+%{_datadir}/xml/docbook5/schema/rng/5.0
+%{_datadir}/xml/docbook5/schema/sch/5.0
+%{_datadir}/xml/docbook5/schema/rng/%{version}
+%{_datadir}/xml/docbook5/schema/sch/%{version}
+%{_datadir}/xml/docbook5/stylesheet/upgrade/db4-upgrade.xsl
+%doc ChangeLog README docs/*
+
+%changelog
+* Wed May 19 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 5.1-1mamba
+- update to 5.1
+
+* Sat Feb 05 2011 gil <puntogil@libero.it> 5.0-2mamba
+- rebuilt devel
+
+* Sun Nov 28 2010 gil <puntogil@libero.it> 5.0-1mamba
+- package created by autospec