That might not be all:
tc@box:~$ ldd /tmp/tcloop/tk/usr/local/lib/libtk8.5.so | grep 'not found'
libXft.so.2 => not found
libfontconfig.so.1 => not found
So I guess 'tk.tcz.dep' also needs the addition of 'libxft.tcz', whilst 'fontconfig.tcz' would be included via 'libxft.tcz.dep'.