Re: Octave with FLTK segfaulting on MacOS X

[Ben Abbott]

On Jun 20, 2014, at 9:04 PM, Ben Abbott <address@hidden> wrote:

> On Jun 17, 2014, at 9:44 PM, Ben Abbott <address@hidden> wrote:
> 
>> Carlo,
>> 
>> I'm seeing a seg-fault when using the fltk graphics toolkit.  For example, 
>> the commands below ...
>> 
>>      graphics_toolkit fltk
>>      plot (rand (3))
>> 
>> ... result in ...
>> 
>>      line 2: 86876 Segmentation fault: 11  
>> /Users/bpabbott/Development/mercurial/default/sources/run-octave --no-gui
>> 
>> Can you confirm this is a problem on your Mac as well?
>> 
>> Ben
> 
> I don't see the seg-fault on the stable, but do see it on the gui-release 
> branch (using the same configure options).  A common "feature" is that the 
> gui thread is active when Octave starts for the default and gui-releaes 
> branch ... meaning that an Octave icon appears on the MacOS Dock for the 
> default and gui-release branches, but not for the stable branch.
> 
> When I have time, I'll start bisecting to identify the changeset.
> 
> Ben

The last default branch revision which worked correctly was 55e376fd8636. 
Meaning "hg revert -a -r 55e376fd8636" followed by bootstraping, configure, and 
make produces a functional fltk toolkit on MacOS 10.9.

changeset:   18485:55e376fd8636
branch:      stable
user:        John W. Eaton <address@hidden>
date:        Mon Feb 17 03:32:22 2014 -0500
summary:     Added tag rc-3-8-1-3 for changeset 02ce68d63fba

The next changeset to the default branch was a periodic merge of gui-release to 
default.

        http://hg.savannah.gnu.org/hgweb/octave/rev/8473198fd005

I expect problem is directly related to the bug report below (no GUI 
interaction outside the main thread on MacOS X).

        https://savannah.gnu.org/bugs/?40242

Ben