Hello!

I'm surprised that there have been no releases since December, although
6.4.0 has a known build problem (tcl/unix/configure: line 7061: syntax
error) with a known fix.

Possible fixes, sorted by impact:

Remove tcl/tk from the sources
Update tcl/tk to the latest versions
Fix stray quotes in the currently bundled tcl/tk sources

For the latest approach, the patch is attached.

I think it's not good if the latest version is not really "greatest".
Can we have 6.4.1 soon, please?

-- 
Regards,
Pavel Roskin