Re: Linux/Clang/Libobjc2 failure part 2 (ng)

[David Chisnall]

On 24 Jun 2018, at 21:28, Riccardo Mottola <riccardo.mottola@libero.it> wrote:
> 
> The patch doesn't apply clean anymore, the code looks changed enough!
> 
> there is no objc_test_class_flag(class, objc_class_flag_new_abi) anymore? 
> Where should I call objc_test_class_flag(class, objc_class_flag_new_abi)) 
> now? please check and perhaps update the patch to your changes, so I can test 
> it.

Ah, sorry.  The newer structure of the runtime upgrades all class structures to 
the modern one in a single place.  If you call objc_legacy_class_for_class() 
and it doesn’t return anything, then it’s a GNUstep ABIv2 class, but you 
shouldn’t need to do that - you can just unconditionally set the offset 
variable that dlsym finds to the correct offset, if it finds a symbol.

David