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Re: Which ObjC2.0 features are missing in the latest GCC?


From: David Chisnall
Subject: Re: Which ObjC2.0 features are missing in the latest GCC?
Date: Mon, 25 Nov 2019 17:24:13 +0000

On 25 Nov 2019, at 17:07, Andreas Fink <address@hidden> wrote:
> (https://en.wikipedia.org/wiki/Debian#Architecture_ports)
> 
> As of the Stretch release, the official ports are:[157]

[ snip ]

>       • s390x: z/Architecture with 64-bit userland, intended to replace 
> s390[160]
> Lets see what clang-10 supports under Debian10

[ snip ] 

> # llc-10 --version

[ snip ]

>     systemz    - SystemZ

[ snip ]

> So the real question is: Are we ok to drop support for s390x  in exchange of 
> support of Objc2.0 support and much cleaner code in libobjc2 ?

FYI: systemz and s390x both refer to IBM’s Z-series mainframes.  IBM has put a 
lot of effort into supporting LLVM on these.  That said, the architecture is 
weird and I suspect that GNUstep (and possibly Clang’s Objective-C support in 
general) would not work.  I’m happy to help anyone who wants to contribute 
Z-series support to Clang’s Objective-C front end and libobjc2 though.  

David




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