attaching a ebuild.. poke me on freenode if you allow me to bump it myself, thanks!
Created attachment 125883 [details] calcoo-1.3.17.ebuild Using GTK+-2.0..
Created attachment 125885 [details, diff] diff against previous ebuild.
actually, wait, also inherit eutils and add this to src_install: newicon src/pixmaps/main.xpm ${PN}.xpm make_desktop_entry ${PN} Calcoo ${PN}.xpm