Re: 4.2.2 release

[Daniel J Sebald]

On 11/08/2017 01:17 PM, John W. Eaton wrote:
> There have been about 70 changes made that address at least 50 bugs 
> since 4.2.1, so it's probably time for a new release.
>
> Are there any additional *critical* bugs that should be fixed on stable 
> before releasing 4.2.2?

I think this one is worth incorporating into 4.2.2 given that it seems 
the solution is fairly straightforward to address a segfault issue on MacOS:

bug #50025: Octave window freezes when I quit Octave GUI
https://savannah.gnu.org/bugs/?50025

Crashing even when exiting is kind of annoying as history might not be 
saved and if run via a script octave returning an error code could also 
cause issues.

The gist of it is that the GUI should wait for the worker process to 
finish ending before moving on.  I suspect on MacOS there may be a 
problem of quitting the GUI when a thread is not yet finished or is 
suspended.  But there may be another means of doing this rather than the 
technique in the submitted patch (which itself is based on a Qt 
example).  The signal could be changed to have the blocking property. 
However, no one has pursued that approach because few of us use MacOS 
regularly to test.

Dan