This essentially locks up the version of each package at the time of
writing an adapter. This makes you to make review of changes before
introducing an updated version of those packages into the system.
Also there could a register of converters written by package developers to
cope with diversity
'tkcoords' is defined twice (in the same way) in src/library/tcltk/R/Tk.R.
Attached is a patch against r63780 that removes the duplicate
definition and alphabetizes the functions.
I've read that minor patches such as this should be sent to r-devel [1].
Scott
[1] http://permalink.gmane.org/gmane