[llvm-dev] Ld64.lld cannot find Foundation framework

[Edmund Furse via llvm-dev]

Thank you for your ideas.I have tried both of your suggestions.

1).  Apple’s ld64 downloads ok and the xcodeproj launches ok.  However a build gives six errors including:
Unable to find sdk ‘Macosx.internal’
tapi/tapi.h file not found
macho-/dyld+priv_h file not found
llvm-c/lto.h file not found
Why cannot Apple provide code that works?  Has anyone managed to overcome these problems?

2). lzd stores some metadata in /tmp/zld-… and hence will not be allowed in a Sandboxed app.



> On 7 May 2020, at 20:38, Shoaib Meenai <smeenai at fb.com> wrote:
> 
> You can always download source tarballs of ld64 from https://opensource.apple.com/tarballs/ld64/ <https://opensource.apple.com/tarballs/ld64/> and build it yourself. (https://github.com/michaeleisel/zld <https://github.com/michaeleisel/zld> might also be interesting to you, depending on what all you plan to use the linker for.)
>  
> From: llvm-dev <llvm-dev-bounces at lists.llvm.org <mailto:llvm-dev-bounces at lists.llvm.org>> on behalf of Edmund Furse via llvm-dev <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>>
> Reply-To: Edmund Furse <edmund.furse at imitation.uk.com <mailto:edmund.furse at imitation.uk.com>>
> Date: Thursday, May 7, 2020 at 12:16 PM
> To: James Y Knight <jyknight at google.com <mailto:jyknight at google.com>>
> Cc: "llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>" <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>>
> Subject: Re: [llvm-dev] Ld64.lld cannot find Foundation framework
>  
> James, many thanks.
>  
> Is there any linker available for Macs that has a freely available binary version?
> I thought maybe that GNU’s linker might fit the bill?
>  
> I cannot use Apple’s linker from /usr/bin/ as it is not allowed to make external calls from a sandboxed app.
> Hence my interest in the LLVM lld.
> 
> 
> On 7 May 2020, at 19:21, James Y Knight <jyknight at google.com <mailto:jyknight at google.com>> wrote:
>  
> On Thu, May 7, 2020 at 1:54 PM Edmund Furse <edmund.furse at imitation.uk.com <mailto:edmund.furse at imitation.uk.com>> wrote:
> Thanks for your reply.  Two questions:
> 1). Will ld64.lld be fixed in LLVM v11.0 and when is this likely to be?
>  
> Likely won't be fixed that soon.
>  
> 2). You mention Apple’s linker, by which I assume you mean GNU’s ld.
> Is it possible to get a binary version of ld (preferably that does not use other things from /usr/bin)?
>  
> No, Apple does not use GNU ld, they have their own linker, "ld64". That's what you ran as /usr/bin/ld on your mac.

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