Allow area to have either linkends or xlink:href

diff --git a/docbook/relaxng/docbook/src/callouts.rnc b/docbook/relaxng/docbook/src/callouts.rnc
index 9b097718004f3f662fc9f2d8ad956fe285e3ff1a..681fc1fb0c0edc13ff69da302488d9fd00843e90 100644 (file)
--- a/docbook/relaxng/docbook/src/callouts.rnc
+++ b/docbook/relaxng/docbook/src/callouts.rnc
@@ -168,7 +168,7 @@ div {
       db.area.role.attribute?
     & db.common.idreq.attributes
     & db.area.units.attribute
-    & db.area.linkends.attribute?
+    & (db.area.linkends.attribute | db.href.attribute)?
     & db.area.label.attribute?
     & db.area.coords.attribute