Re: opengroupware and gnustpe-base WAS: [OGo-Developer] gsmake2 branch segmentation fault

[Helge Hess]

On 19.02.2008, at 08:50, David Ayers wrote:
> Helge Hess schrieb:
> > On 18.02.2008, at 10:44, Richard Frith-Macdonald wrote:
> > > On 18 Feb 2008, at 09:01, Sebastian Reitenbach wrote:
> > > > However, OGo, on Linux, *BSD usually compiled against libFoundation
> > Just for completeness: I usually compile/develop against Cocoa, and  
> > it works just fine there too.
> Just for the record, -base poisons the class_pointer (isa) in  
> NSDeallocateObject by default where as Foundation doesn't (at least  
> older implementations of Foundation don't).  Therefore double  
> releases could more likely go by unnoticed in Cocoa.


Interesting.

Anyways, I think a generic double release is rather unlikely (after  
all it works with lF _and_ Cocoa, and we did a lot of memory debugging  
over the years). Not impossible, but unlikely.
From a rough feeling I guess GDL1 somehow modifies retain/release  
stuff to do certain things (uniquers, faults). Maybe that doesn't work  
properly with gstep-base (eg a retain count doesn't properly get  
transferred when a fault is resolved or sth like that).

Greets,
  Helge
--
Helge Hess
http://www.helgehess.eu/