Reverse dependencies of "pangomm"

Depended by: gtkmm, gtkmm-3

Library depended by:

• gtkmm
• gtkglextmm, gtkmm-3
• ardour, gdlmm, gnote, gparted, grub-customizer, gsmartcontrol, inkscape, libglademm, linthesia, nitrogen, open-vm-tools, synfig