Index: Mk/Uses/gnome.mk
===================================================================
--- Mk/Uses/gnome.mk	(revision 559840)
+++ Mk/Uses/gnome.mk	(working copy)
@@ -157,6 +157,8 @@
 
 libsigc++20_LIB_DEPENDS=	libsigc-2.0.so:devel/libsigc++20
 
+libsigc++30_LIB_DEPENDS=	libsigc-3.0.so:devel/libsigc++30
+
 pangomm_LIB_DEPENDS=	libpangomm-1.4.so:x11-toolkits/pangomm
 pangomm_USE_GNOME_IMPL=	pango glibmm cairomm