creates data directory under /var/lib/ (and make it owned by www-data)

debian/dirs

@@ -1,2 +1,3 @@
 etc/apache2/sites-available
 usr
+var/lib/wcs

debian/rules

@@ -39,6 +39,7 @@ install: build
 	python setup.py install --prefix=$(CURDIR)/debian/wcs/usr --no-compile
 	cd po && make install prefix=$(CURDIR)/debian/wcs/
 	cp debian/vhost-apache-wcs $(CURDIR)/debian/wcs/etc/apache2/sites-available
+	chown www-data.www-data $(CURDIR)/debian/authentic/var/lib/wcs/
 
 
 # Build architecture-independent files here.
@@ -53,7 +54,7 @@ binary-arch: build install
 	dh_installinit
 	dh_link
 	dh_strip
-	dh_fixperms
+	dh_fixperms -X /var/lib/wcs
 	dh_installdeb
 	dh_gencontrol
 	dh_md5sums