+dnl Uncomment links to ObjectIO docs if necessary
+AC_ARG_ENABLE(objectio,
+[ --enable-objectio
+ Build ObjectIO, a portable GUI library for Haskell.
+ (This option is only relevant when libraries are built.)
+],
+[
+ObjectIOHTMLStart=""
+ObjectIOHTMLEnd=""
+],
+[
+ObjectIOHTMLStart="<!--"
+ObjectIOHTMLEnd="-->"
+]
+)
+
+AC_SUBST(ObjectIOHTMLStart)
+AC_SUBST(ObjectIOHTMLEnd)
+