[MACTCL] Aqua Tk 8.5/8.6 problem on OS X 10.9 Mavericks

[Ned D. <na...@ac...>]

Now that OS 10.9 Mavericks has been released (and at no cost), people are 
updating to it and running into a problem with Aqua Tk.  I ran into the 
problem with Python's IDLE but it seems to affect other multi-window Tk 
applications, as it can be reproduced using wish demos.   Basically, the 
problem is that Tk windows don't get automatically redrawn when the mouse is 
used to change the active window and focus.  I've described the details here:

https://core.tcl.tk/tk/tktview?name=53f7a1b553

As it affects current versions of ActiveTcl 8.5 and 8.6, I also opened an 
ActiveTcl issue:

http://bugs.activestate.com/show_bug.cgi?id=101210

As noted in the Tk issue above, the Apple-supplied Tk 8.5.9 does not have this 
problem but that version has other, serious problems that have been fixed in 
newer versions of Tk 8.5, for example, immediately crashing when typing a 
composing character in a text field (like option-u for US Extended input 
methods).  Also as noted, one workaround appears to be to force Tcl/Tk to run 
in 32-bit mode, which may not be possible for some applications if they depend 
on non-universal libraries.

-- 
 Ned Deily,
 na...@ac...