Re: ObjC2 includes

[Richard Frith-Macdonald]

On 16 Jul 2011, at 08:26, Eric Wasylishen wrote:

> 
> On 2011-07-15, at 11:34 PM, Richard Frith-Macdonald wrote:
> 
>> 
>> On 15 Jul 2011, at 22:01, Stefan Bidi wrote:
>> 
>>> So... what is the correct way?  My version of libobjc doesn't include a 
>>> <objc/runtime.h>, and apparently <ObjectiveC2/runtime.h> isn't available 
>>> everywhere.
> 
> As far as I know, on GNUstep at present there's no portable way for 
> applications/libraries to include runtime.h specifically, due to the two 
> possible directory prefixes. If you include Foundation/Foundation.h, you'll 
> get the right runtime.h included as a side effect, though. (But not on OSX)
> 
>> As  understand it, the 'standard' (ie as provided by OSX) is to include 
>> runtime.h for using  the ObjC2 API.
>> 
> On OSX, you use #include <objc/runtime.h>.

Then that's what we should be using.

>> In both cases, your headers include runtime.h ... and your build flags 
>> (-I...) specify the location of the runtime.h file on your particular system.
> 
> GNUstep make doesn't support that now though, does it? If you wrote 
> appliactions / libraries that used #include <runtime.h>, it would also 
> require tweaking to get them to build on OS X.
> 
> I wonder if it would be possible to have the ObjectiveC2 compatibility 
> runtime.h be installed in such a way that #include <objc/runtime.h> picks it 
> up?

I don't see why not ... we should do it.  It should just require a bit of 
tweaking the ObjectiveC2 header locations I guess.