Re: [FFmpeg-devel] Building for Mac x86 with GCC & NASM

["Christopher Snowhill" <kode54@gmail.com>]

On Tue May 27, 2025 at 10:54 PM PDT, Martin Storsjö wrote:
> On Tue, 27 May 2025, softworkz . wrote:
>
>> Hi,
>>
>> I have an issue with the CI builds for Mac in a way that it prints
>> tons of lines like this:
>>
>> ld: warning: no platform load command found in 'libavcodec/libavcodec.a[1008](sao_10bit.o)', assuming: macOS
>> ld: warning: no platform load command found in 'libavcodec/libavcodec.a[1009](hpeldsp.o)', assuming: macOS
>> ld: warning: no platform load command found in 'libavcodec/libavcodec.a[1011](huffyuvdsp.o)', assuming: macOS
>> ld: warning: no platform load command found in 'libavcodec/libavcodec.a[1013](huffyuvencdsp.o)', assuming: macOS
>>
>>
>> These are all about X86AM output. I've had those lines for all .o files
>> before and was able to get rid of them by adding flags like below.
>>
>> Does anybody know how I can avoid those lines for the X86ASM output as well?
>> (don't know much about building for Apple)
>
> These warnings appeared since the new linker in Xcode 15.0, 1.5 years ago. 
> I'm not aware of a flag for silencing these warnings; the only way I'm 
> aware of is to force using the old linker by passing -Wl,-ld_classic.
>
> These warnings would go away of nasm could produce the right platform load 
> commands; this is https://github.com/netwide-assembler/nasm/pull/13, but 
> there hasn't been much progress on it. (And since the macOS ecossytem 
> mostly is moving away from x86, I guess there's progressively less effort 
> on it as well.)
>
> // Martin

I do wonder how this is going, since I have never noticed such messages
while building for x86 from an ARM machine. I continue to support x86
machines all the way down to the minimum spec of current Xcode, which is
10.13.

I guess I can look forward to dropping x86 support whenever Apple
decides to drop it entirely from whatever is required to build and
submit to the App Store. I also look forward to both Wine and Steam
ceasing to be a thing on the Mac, along with all the x86 games that will
never be ported to ARM. But this is getting into an off-topic rant,
sorry about that.

>
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