With x11-libs/vte-0.10.25, build of tck-gtk fails because vte_terminal_set_scroll_background does not exist. With vte-0.11.11, build is successful, and demos (such as they are) run. So, tcl-gtk-0.08.ebuild needs a DEPEND something like >=x11-libs/vte-0.11.xxx (or whatever version of vte is needed). My system is sparc, but I doubt that architecture has anything to do with this.
Thank you.
*** Bug 61810 has been marked as a duplicate of this bug. ***