Hi David
On Feb 28, 2011, at 4:41 PM, David Chisnall wrote:
> Hi Mattieu,
>
> Damien Pollet and I wrote a quick-and-dirty binding for GST a few years back
> in an afternoon. I'm not sure if he tidied it up - I got bored with it
> because we now have a native Smalltalk implementation for Étoilé so
> interfacing with a slower Smalltalk was less interesting to me, but I'd be
> happy to help anyone wanting to work on the bridge.
>
Cool I'd love to take a look at it any chance that you have it somewhere?
> To open frameworks, the best thing to do is use the NSBundle functionality -
> this works on both GNUstep and OS X. In LanguageKit, there is code for
> loading a list of frameworks that is specified in a .plist file accompanying
> a set of Smalltalk files - it's MIT licensed, so feel free to steal it. If
> copyright assignment is an issue, then I'd be happy for my GNUstep FSF
> copyright assignment to cover this code, so I can commit anything that you
> want to steal to GNUstep svn somewhere and you can then import it into other
> GNU projects.
>
> More comments inline...
>
>
> On 28 Feb 2011, at 15:16, Mathieu Suen wrote:
>
>> Hi,
>>
>> I am trying to write a gnustep/Etoile binding for gnu-smalltalk.
>> I don't know if this ML is the right one so just let me know.
>>
>> Here is the thing:
>>
>> When writing the binding for Cocoa on OSX I can dynamically load framework
>> with
>> libtool:
>>
>> lt_dlopenext ("Foundation.framework/Foundation");
>
> You can just use dlopen() directly if you want to open the library, although
> this may not register things with Foundation correctly. The best way of
> doing it is to provide the .framework path to [NSBundle bundleWithPath:].
>
> You can find a wrapper around this here:
>
> http://svn.gna.org/viewcvs/etoile/trunk/Etoile/Languages/LanguageKit/LKCompiler.m?revision=6793&view=markup
>
> Look for the loadFramework() function - this loads a framework by name, and
> works on OS X and GNUstep, searching for the framework in the standard
> locations.
Thanks a lot for the infos I will take a look at it as soon as I can get
gnustep runtime loaded.
...
>
>> ...
>>
>> I also need the Objective-C runtime for method like objc_getClass.
>> Currently when I load the objc library it load /usr/lib/libobjc.so.2, I
>> guess
>> this is not the right one.
>> Using gdb it shows that the symbol does not exist.
>
> This function is provided by the GNUstep Objective-C runtime, by the
> ObjectiveC2 compatibility framework in GNUstep Base, and by the GCC
> Objective-C runtime shipped with 4.6.
>
> libobjc.so.2 looks like you are using a very old version of the GCC
> Objective-C runtime, so this function should be being provided by GNUstep
> base, unless you are using a version more than a year old.
>
It what I suspected using objdump I can't recognize the Objective-C API so I
guess that was the one from gcc.
Now I am wondering how to load the gnustep library. At least what is the
minimum that I need in other to have NSBundle and friends to work.
I have a quick look at my gnustep install dir. From what I see the gnustep base
is somewhere in /usr/GNUstep/Local/.../libgnustep-base.so
I am using the build tool from gst. So what should I add to my Makefile.am and
configure.ac.
Adding:
include ${GNUSTEP_MAKEFILES}/common.make
Is a bit too mush since I already have all make and install rules.
I might only need -L/... and -lgnustep-base switch I guess.
Thanks a lot
> David
>
> -- Sent from my IBM 1620
> _______________________________________________
> Etoile-discuss mailing list
> [email protected]
> https://mail.gna.org/listinfo/etoile-discuss
--
Mathieu Suen
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