Almost all of the packages in the depends file are in the 6.x repo - pkgconfig, libxcb, xcb*, libev, yajl, xlib, pcre, startup-notification, pango and cairo - I suspect that libev and maybe yajl will need updating.
libxkbcommon will need compiling (instructions in x86_64 src)
asciidoc, xmlto, pod::simple and docbook (in the repo) can probably be avoided by disabling documentation