[MACTCL] menubutton width error

[Russell E. O. <ro...@uw...>]

I'm switching from Tcl/Tk 8.4.x to 8.5.x on MaOS (so I can use modern 
64-bit python) and am running into many problems.

I've been able to find workarounds for most, but not this one (bug #ID 
3587262): menubuttons are often shown far too narrow if the size is 
automatic*. Here is a demonstration:

tk_optionMenu .om omVar DC1 DC2 DC3
.om configure -width 3 # -indicatoron 0
pack .om

One oddity is that the display becomes correct if I change the font size 
(and I can then change it back and it is still right).

Does anyone know a simple workaround? I fear I'm going to have to assign 
a callback to the variable and manually set the width based on the 
content of the var, but I was hoping for something simpler.

I've seen this on MacOS 10.8 using ActiveState Tcl/Tk 8.5.11 and 8.5.12. 
I understand Tcl/Tk 8.5.13 just came out, but I've not seen an 
ActiveState installer for that yet.

-- Russell

*It is a separate bug #3580194 that the width is too narrow if an 
explicit (nonzero) width is specified. I work around that one by 
increasing the width on aqua, though my workaround will cause very wide 
menus if the bug is ever fixed.