diff --git a/apache-mod_wsgi.spec b/apache-mod_wsgi.spec
index 8bc7916..41a77d6 100644
--- a/apache-mod_wsgi.spec
+++ b/apache-mod_wsgi.spec
@@ -1,6 +1,6 @@
 Name:          apache-mod_wsgi
-Version:       4.4.12
-Release:       2mamba
+Version:       4.6.4
+Release:       1mamba
 Summary:       an Apache module that implements a WSGI compliant interface for hosting Python based web applications
 Group:         System/Libraries
 Vendor:        openmamba
@@ -24,56 +24,72 @@ BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 %description
 The mod_wsgi package provides an Apache module that implements a WSGI compliant interface for hosting Python based web applications on top of the Apache web server.
 
+%if 0%{?with_pyver}
+%pyver_package
+%endif
+
 %prep
 %setup -q -n mod_wsgi-%{version}
 
-%build
-CFLAGS="%{optflags}" %{__python3} setup.py build
 
-%configure \
-   --with-python=%{__python3}
+%build
+CFLAGS="%{optflags}" %{__python} setup.py build
+
+%configure\
+   --with-python=%{__python}
 
 %make
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-%{__python3} setup.py install \
+%{__python} setup.py install \
    -O1 --skip-build \
    --root="%{buildroot}" \
    --install-headers=%{_includedir}/python \
-   --install-lib=%{python3_sitearch} \
+   --install-lib=%{python_sitearch} \
    --record=%{name}.filelist
 
-sed -i "\,\.egg-info/,d;s,.*/man/.*,&.gz," %{name}.filelist
+sed -i "s,.*/man/.*,&.gz," %{name}.filelist
 
 %makeinstall
 
-install -D -m0644 %{SOURCE1} %{buildroot}%{_tmpfilesdir}/wsgi.conf
-install -D -m0644 %{SOURCE2} %{buildroot}%{_sysconfdir}/httpd/httpd.d/wsgi.conf
+install -D -m0644 %{SOURCE1} %{buildroot}%{_tmpfilesdir}/wsgi%{?pyappend:-%pyappend}.conf
+install -D -m0644 %{SOURCE2} %{buildroot}%{_sysconfdir}/httpd/httpd.d/wsgi%{?pyappend:-%pyappend}.conf
 
-%post
+%if 0%{?with_pyver}
+mv %{buildroot}%{_libdir}/apache/mod_wsgi.so %{buildroot}%{_libdir}/apache/mod_wsgi%{?pyappend:-%pyappend}.so
+mv %{buildroot}%{_bindir}/mod_wsgi-express %{buildroot}%{_bindir}/mod_wsgi-express%{?pyappend:-%pyappend}
+sed -i "s|%{_bindir}/mod_wsgi-express|%{_bindir}/mod_wsgi-express%{?pyappend:-%pyappend}|" %{name}.filelist
+%endif
+
+%post %{?pyappend}
 if [ $1 -ge 1 ]; then
+   # WORKAROUND: using tmpfiles_create macro unsets %pyappend variable for yet unknown reasons
+   #% tmpfiles_create wsgi%{?pyappend:-%pyappend}.conf
+   systemd-tmpfiles --create wsgi%{?pyappend:-%pyappend}.conf >/dev/null 2>&1 || :
    systemctl -q daemon-reload
-   %tmpfiles_create wsgi.conf
-   %{_bindir}/apxs -e -a -n wsgi %{_libdir}/apache/mod_wsgi.so > /dev/null
+   %{_bindir}/apxs -e -a -n wsgi%{?pyappend} %{_libdir}/apache/mod_wsgi%{?pyappend:-%pyappend}.so > /dev/null
 fi
 :
 
-%preun
+%preun %{?pyappend}
 if [ $1 -eq 0 ]; then
    systemctl -q daemon-reload
-   %{_bindir}/apxs -e -A -n wsgi %{_libdir}/apache/mod_wsgi.so > /dev/null
+   %{_bindir}/apxs -e -A -n wsgi%{?pyappend} %{_libdir}/apache/mod_wsgi%{?pyappend:-%pyappend}.so > /dev/null
 fi
 :
 
-%files -f %{name}.filelist
+%files %{?pyappend} -f %{name}.filelist
 %defattr(-,root,root)
-%{_sysconfdir}/httpd/httpd.d/wsgi.conf
-%{_libdir}/apache/mod_wsgi.so
-%{_tmpfilesdir}/wsgi.conf
+%{_sysconfdir}/httpd/httpd.d/wsgi%{?pyappend:-%pyappend}.conf
+%{_libdir}/apache/mod_wsgi%{?pyappend:-%pyappend}.so
+%{_tmpfilesdir}/wsgi%{?pyappend:-%pyappend}.conf
 %doc LICENSE
 
 %changelog
+* Thu Sep 06 2018 Silvan Calarco <silvan.calarco@mambasoft.it> 4.6.4-1mamba
+- update to 4.6.4
+
 * Mon Aug 24 2015 Silvan Calarco <silvan.calarco@mambasoft.it> 4.4.12-2mamba
 - install tmpfiles and apache configurations for /run/wsgi as default socket dir