Re: ANN: GNUstep 2.6.0 for openSUSE 11.4

[Nat!]

Am 14.06.2011 um 22:50 schrieb David Chisnall:

> On 14 Jun 2011, at 21:43, Nat! wrote:
> 
>> 
>> #import <UnitKit/UKRunner.h> fails
>> 
>> Even if I give it -F/usr/local/lib/GNUstep/Frameworks, it makes no 
>> differences. 
>> 
>> If I create a symlink in /usr/local/include 
>> 
>> ln -s /usr/local/lib/GNUstep/Frameworks/UnitKit.framework/Headers UnitKit
>> 
>> it works.
> 
> Odd.  UnitKit in the Étoilé repository installs correctly.  That symlink 
> should be created by [g]make install...

I checked it out, but it has the same problem. But anyway now I know, that I am 
supposed to have a symlink right there, so that's Ok.

> 
>> Secondly, where is objc_msgSend (or objc_msg_send as it's probably called in 
>> GNUstep) ? There is a reference in the headers, but it's nowhere declared, 
>> which I find a bit peculiar/troubling.
> 
> objc_msgSend() is an implementation detail of the NeXT and Apple runtimes.  
> It is not possible to implement in a portable fashion, so the GCC and GNUstep 
> runtimes use a different approach.  For portable code, use 
> class_getMethodImplementation() and then call the returned function.
> 

Hmm interesting, though I don't see offhand, why dividing  what objc_msgSend 
does  into separate steps makes it inherently more portable. I will have to 
look into my code, to see if its feasible to roll my own objc_msgSend, (because 
I use it a lot as I found out :) ).

Ah and one more question, regarding forwarding is __objc_msg_forward (instead 
of __objc_msg_forward2) ever really used or can I ignore it, when I run atop a 
current runtime ?

Thanks for the help
   Nat!
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Wer nichts weiß, muss viel glauben -- H. Kaminski