* For Tcl9, all relevant system tcl files, the tcl library and
readline library, are packed in a zip file, compiled into the
binary mounted on the virtual filesystem //zipfs:/
* On Tcl 8, which does not allow to do that quite yet, we
take the same directory structure (unpacked), and use them
via runfiles as before; however, since this is now a single
directory the runfile symbolic links are reduced to one.
Default for now is to use the runfile method, as we're still on
Tcl8; The code is prepared for Tcl9, awaiting some changes in
STA to be merged, then we can change the default.
Fixes: #9962#9980
Signed-off-by: Henner Zeller <h.zeller@acm.org>
