Hi Andreas,
On May 3, 2018, at 2:45 PM, Andreas Höschler wrote:
Segmentation fault
...
while accessing one of its instance variables, actually in the
NSLog(@"routeVisible: %d", _routeVisible);
line. When I comment this line out I get the same error in the next
line while accessing _routePath and so on. I am clueless how to fix
this. The code works on MacOSX and also with on an ancient GNUstep/
Debian/Kubuntu setup. Any idea what might cause this trouble on
Ubuntu 16.04 with the latest GNUstep or how to further track this
down?
Currently, libobjc2's non-fragile ABI can cause segfaults on
Debian-based distros (& perhaps other Linux distros) when directly
accessing some class' instance variables.
There's a few workarounds for Ubuntu:
* The Ubuntu install script on the wiki has a workaround (it checks
out an old version of GNUstep-make that builds using the fragile ABI):
http://wiki.gnustep.org/index.php/GNUstep_under_Ubuntu_Linux
* If you need the non-fragile ABI, there's a script + objc2-patch
attached to this list message:
http://lists.gnu.org/archive/html/discuss-gnustep/2017-12/msg00129.html
* David is working on a new ABI, and you can try his experimental
builds:
http://lists.gnu.org/archive/html/gnustep-dev/2018-04/msg00051.html
Cheers,
Josh
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