--- devel/libical/Makefile	(revision 494699)
+++ devel/libical/Makefile	(working copy)
@@ -22,13 +22,18 @@ 
 
 MAKE_JOBS_UNSAFE= yes
 
-BUILD_DEPENDS=	valac:lang/vala \
-		gtkdoc-scan:textproc/gtk-doc
+BUILD_DEPENDS=	valac:lang/vala
 USE_GNOME=	introspection:build glib20 libxml2
 CMAKE_ARGS+=	-DGOBJECT_INTROSPECTION=true \
-		-DICAL_GLIB_VAPI=true \
-		-DICAL_BUILD_DOCS=false
+		-DICAL_GLIB_VAPI=true
 
 PLIST_SUB+=	VERSION=${PORTVERSION}
 
+OPTIONS_DEFINE=	GTKDOC
+OPTIONS_SUB=	yes
+
+GTKDOC_DESC=		Build API documentation (requires textproc/gtk-doc)
+GTKDOC_BUILD_DEPENDS=	gtkdoc-check:textproc/gtk-doc
+GTKDOC_CMAKE_BOOL=	ICAL_BUILD_DOCS
+
 .include <bsd.port.mk>
--- devel/libical/pkg-plist	(revision 494699)
+++ devel/libical/pkg-plist	(working copy)
@@ -121,4 +121,54 @@ 
 libdata/pkgconfig/libical.pc
 share/gir-1.0/ICalGLib-3.0.gir
 share/gir-1.0/libical-%%VERSION%%.gir
+%%GTKDOC%%share/gtk-doc/html/libical-glib/annotation-glossary.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/api-index-1-0.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/api-index-2-0.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/api-index-3-0.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/api-index-full.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/ch01.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/home.png
+%%GTKDOC%%share/gtk-doc/html/libical-glib/index.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/left-insensitive.png
+%%GTKDOC%%share/gtk-doc/html/libical-glib/left.png
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalArray.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalAttach.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalCompIter.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalComponent.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalDatetimeperiodType.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalDurationType.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalGeoType.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalObject.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalParameter.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalParser.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalPeriodType.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalProperty.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalRecurIterator.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalRecurrenceType.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalReqstatType.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalTimeSpan.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalTimetype.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalTimezone.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalTimezonePhase.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalTimezonetype.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalTriggerType.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-ICalValue.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-i-cal-derived-parameter.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-i-cal-derived-property.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-i-cal-derived-value.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-i-cal-enums.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-i-cal-error.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-i-cal-langbind.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-i-cal-memory.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-i-cal-mime.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-i-cal-recur.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-i-cal-restriction.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-i-cal-time.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib-i-cal-unknowntokenhandling.html
+%%GTKDOC%%share/gtk-doc/html/libical-glib/libical-glib.devhelp2
+%%GTKDOC%%share/gtk-doc/html/libical-glib/right-insensitive.png
+%%GTKDOC%%share/gtk-doc/html/libical-glib/right.png
+%%GTKDOC%%share/gtk-doc/html/libical-glib/style.css
+%%GTKDOC%%share/gtk-doc/html/libical-glib/up-insensitive.png
+%%GTKDOC%%share/gtk-doc/html/libical-glib/up.png
 share/vala/vapi/libical-glib.vapi