| Re: [hatari-devel] -fno-common for macOS |
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- To: hatari-devel@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [hatari-devel] -fno-common for macOS
- From: Eero Tamminen <oak@xxxxxxxxxxxxxx>
- Date: Mon, 28 Jul 2025 11:39:51 +0300
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Hi Andreas,
On 21.7.2025 12.45, Andreas Grabher wrote:
it seems the latest compilers on macOS require -fno-common to be set in order to avoid a compilation error (ld: warning: reducing alignment of section __DATA,__common from 0x8000 to 0x4000 because it exceeds segment maximum alignment).
Here is a post about the issue: https://lists.ffmpeg.org/pipermail/ffmpeg-devel/2025-May/343169.html
At the moment -fno-common is only set if ASAN is enabled but it should always be set.
I did not receive rest of the discussion, but saw it on the mailing list
archive.
In your patch proposal, I think it would make more sense to use
temporary local allocations instead of static object-global ones.
(Either in stack, or alloc & free from heap.)
- Eero