Re: Building GUI with libobjc2 for Windows MSVC

[Frederik Seiffert]

So I tested this some more, and after rebuilding libs-base as a whole (I had 
previously only rebuilt the relevant files) I’m getting the following linker 
errors:

> lld-link: error: <root>: undefined symbol: Q^?LL}
> lld-link: error: <root>: undefined symbol: ^{autorelease_array_list}II[0☺]}
> lld-link: error: <root>: undefined symbol: 
> ^{_NSZone}QQ^{_GSIMapBucket}^{_GSIMapNode}Q^^{_GSIMapNode}Q}
> lld-link: error: <root>: undefined symbol: ciiC[38C]}
> lld-link: error: <root>: undefined symbol: {_RTL_SRWLOCK=^v}ALIi}
> lld-link: error: <root>: undefined symbol: ^v}
> lld-link: error: <root>: undefined symbol: ^?^?^?^?^?^?^?Q☺^{_NSZone}}
> lld-link: error: <root>: undefined symbol: 
> ^{_NSNotificationQueueRegistration}^{_NSNotificationQueueRegistration}}
> lld-link: error: <root>: undefined symbol: ☺I^☺ii}
> lld-link: error: <root>: undefined symbol: i☺☺}
> lld-link: error: <root>: undefined symbol: 
> [16{_SETJMP_FLOAT128=[2Q]}]^{_NSHandler}☺}
> lld-link: error: <root>: undefined symbol: QQ}
> lld-link: error: <root>: undefined symbol: 
> ^{_xmlDoc}^{_xmlDtd}^{_xmlEntity}^{_xmlNode})
> lld-link: error: <root>: undefined symbol: ☺☺{?=b0I1b1I31}}
> lld-link: error: <root>: undefined symbol: 
> b0I1b1I1b2I1b3I1b4I1b5I1b6I1b7I1b8I1}


I’m not sure if they indicate an issue with the patch, or if it’s rather an 
issue e.g. with how I built Clang or how I’m using the custom build? I used the 
LLVM_ENABLE_PROJECTS=clang CMake option to build Clang, but maybe I need to 
enable other LLVM projects like lld, libcxx or others too?

Thanks,
Frederik


> Am 25.10.2021 um 17:42 schrieb David Chisnall <gnustep@theravensnest.org>:
> 
> Hi,
> 
> If you can comment on the review and approve it, I can commit it (once I’ve 
> fixed the clangformat warnings).
> 
> David
> 
>> On 23 Oct 2021, at 16:33, Frederik Seiffert <frederik@algoriddim.com> wrote:
>> 
>> Hi David,
>> 
>>> Am 14.10.2021 um 13:59 schrieb David Chisnall <gnustep@theravensnest.org>:
>>> 
>>> I believe this patch should fix it:
>>> 
>>> https://reviews.llvm.org/D111792
>> 
>> Thank you, this worked great after I built Clang 13 with this patch applied!
>> 
>> What’s the process for getting this merged, and and any idea when we could 
>> expect official builds with it?
>> 
>> Frederik
>> 
>> 
>