> Did you move the directory of installed Tcl/Tk?
> "-lC:/Tcl/include" is TCL_INCLUDE_SPEC described in tclConfig.sh.
> Probably, ActiveTcl installer set the variable to a proper value,
> that is, the directory to install.
> So, moving the directory, extconf.rb fails to get the proper values
> from tclConfig.sh/tkConfig.sh.

Ahh yes I remember now that I did.  Sorry for the noise.
-r