[FFmpeg-devel] [PATCH]doc/platform: Mention musl where x86_32 is not supported

[Ronald S. Bultje]

Hi,

On Mon, Oct 3, 2016 at 7:37 AM, Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:

> Hi!
>
> 2016-10-03 13:05 GMT+02:00 Guillaume POIRIER <poirierg at gmail.com>:
> > Hello,
> >
> > On Mon, Oct 3, 2016 at 11:38 AM, Carl Eugen Hoyos <ceffmpeg at gmail.com>
> wrote:
> >> 2016-10-03 3:52 GMT+02:00 Carl Eugen Hoyos <ceffmpeg at gmail.com>:
> >>
> >>> New patch attached.
> >>
> >>> +Compilation with @uref{http://www.musl-libc.org/, musl} on x86-64 is
> supposed
> >>> +to work out-of-the-box.
> >>
> >> Is this true or is it just working by accident?
> >
> > AMD64 dictates that float operations must occur with scalar SSE
> > operations, so it's not working by accident. It works because float
> > operations don't use x87 stack (which is shared with MMX)
>
> Thank you for the explanation!
>
> Ping on the patch:


The patch is unlikely to assist in fixing the issue and is likely to cause
further inflammation. Therefore I would prefer you did not apply the patch
and also please don't send a new version that is differently worded.

I would prefer to work with upstream (musl) and fix the issue where ffmpeg
running with musl crashes. Whether that means changing ffmpeg or musl
remains to be seen. Let's chat with the developers and figure something out.

Ronald