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Re: building on macOS?

From: Ben Abbott
Subject: Re: building on macOS?
Date: Wed, 07 Nov 2018 21:39:50 -0800

> On Nov 6, 2018, at 3:54 PM, Ben Abbott <address@hidden> wrote:
>> On Nov 6, 2018, at 15:38, John W. Eaton <address@hidden> wrote:
>> On 11/06/2018 05:12 PM, Carlo De Falco wrote:
>>>> On 6 Nov 2018, at 22:41, Sebastian Schöps <address@hidden> wrote:
>>>> Dmitri A. Sergatskov wrote
>>>>> Running "make V=1" -- finished building w/o problem.
>>>>> This is on Fedora 29.
>>>> I have the same issue on macOS (default branch, with Gui) and "make V=1"
>>>> does not help here...
>>>> ...
>>>> /bin/sh run-octave --norc --silent --no-history --path
>>>> /private/tmp/octave-octave-app-20181106-78235-s9u83m/doc/interpreter/ 
>>>> --eval
>>>> "interpimages ('doc/interpreter/', 'interpn', 'txt');"
>>>> fatal: caught signal Segmentation fault: 11 -- stopping myself...
>>>> Sebastian
>>> I completed the bisection search, this seems to be the first bad revision 
>>> for me :
>>> $ hg bisect -g
>>> The first bad revision is:
>>> changeset:   25994:332be8be16eb
>>> user:        John W. Eaton <address@hidden>
>>> date:        Fri Sep 28 18:18:09 2018 -0400
>>> summary:     dynamically load qt graphics
>>> can someone confirm that a00379f6f8c4 builds correctly while 332be8be16eb 
>>> fails?
>> Can someone also run the failing version under gdb or get a core file and 
>> run gdb on that and the octave-gui executable and see where the segfault 
>> happens?
>> jwe
> Apple’s clang supports lldb. run-octave needs to be adjusted to use lldb.
> I was looking at this yesterday. I think all the needed translation info is 
> at the link below.
> https://lldb.llvm.org/lldb-gdb.html
> Ben

The last working version is a00379f6f8c4 (fminsearch.m: Accept problem 
structure for Matlab compatibility).

Changesets 332be8be16eb thru 56ac36b5f7b0 are unable to build __init_qt__.la.

56ac36b5f7b0: eliminate unnecessary use of this-> in member function

        clang: error: linker command failed with exit code 1 (use -v to see 
        make[2]: *** [libgui/graphics/__init_qt__.la] Error 1

Changeset 14e844f1459a fixes the __init_qt__.la build problem.

14e844f1459a: fix linking of __init_qt__.la on Windows systems (bug #54881)

After fixing this problem, when the qt toolkit is used, Octave seg-faults when 

        fatal: caught signal Segmentation fault: 11 -- stopping myself...
        make[2]: *** [doc/interpreter/convhull.txt] Segmentation fault: 11
        make[2]: *** Deleting file `doc/interpreter/convhull.txt’

Speculation on my part, but this may be related to the problem with cleaning up 
qt before exiting.



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