Re: things that fail to build with gcc and libobjc2

[Richard Frith-Macdonald]

On 7 Apr 2011, at 12:25, Wolfgang Lux wrote:

> Richard Frith-Macdonald wrote:
> 
>> 
>> On 6 Apr 2011, at 19:48, Wolfgang Lux wrote:
>>> 
>>> I've updated STObjCRuntime.m in svn so that it now uses the Objective-C 2 
>>> API with the exception of type selectors, which are a GNU extension and not 
>>> part of Apple's runtime and thus the API. Compiling against libobjc2 you 
>>> probably still will get deprecated warnings for them (I haven't tested it 
>>> because I don't have libobjc2 installed anywhere), but given the number of 
>>> warnings produced by StepTalk, these shouldn't matter much :-(
>> 
>> And I've replaced the runtime specific typed selector code with the runtime 
>> independent api we introduced about a decade ago.
> 
> So obviously before I joined the project :-)
> 
> BTW, I've found some other objective C functions in the StepTalk source (and 
> as a matter of fact in Jigs as well), namely objc_sizeof_type, 
> objc_alignof_type, and objc_skip_typespec, which also are not part of Apple's 
> runtime. Looking at GSObjCRuntime.h, it looks like we don't have runtime 
> independent replacements for these, do we?

We do ... those are all combined into a single portable function call 
NSGetSizeAndAlignment() declared in Foundation/NSObjCRuntime.h

Incidentally, gnustep-base itsself is not completely 'clean' with respect to 
the modern runtime yet, but I don't intend to hold up the release trying to 
make it so.