[Buildroot] [PATCH v2] package/mpv: switch to meson from waf

[J. Neuschäfer]

Hello Thomas,

On Mon, Jan 06, 2025 at 12:23:49AM +0100, Thomas Bonnefille via buildroot wrote:
> Since commit fd562315, which updated waf to v2.1.1, Buildroot has
> encountered issues building mpv, likely due to an outdated version of
> the waf build system.
>
> Starting with mpv v0.35, meson was introduced as an alternative to waf,
> and in mpv v0.37, waf was completely removed.
>
> This commit updates the mpv makefile to use meson, resolving the build
> issues and simplifying future updates to newer versions of mpv.
>
> All options previously used for Waf have been translated to the new
> build system by replacing `--disable-feature` with `-Dfeature=disabled`
> (and similarly for enabling features). Some features have special
> handling:
>
> - The `/usr` prefix is automatically passed to meson packages by
>   default.
> - The Android feature "has been removed since meson can detect if a
>   machine is Android"[1].
> - The `libmpv` parameter has been enabled in the makefile as `libmpv`
>   must be built by default with mpv.
> - Meson packages automatically set whether the library should be built
>   statically using the `default_library` meson parameter.
> - Meson automatically detects the presence of `libatomic` and passes the
>   correct argument to the linker. However, it is possible to set the
>   `stdatomic` meson parameter to specify whether `libatomic` must or
>   must not be used.
>
> Fixes:
>     https://autobuild.buildroot.org/results/68d42441fc0da34e1bf2a4247726f5f4ec3b8e77/
>
> [1]: https://github.com/mpv-player/mpv/blob/140ec21c89d671d392877a7f3b91d67e7d7b9239/DOCS/build-system-differences.md?plain=1#L48
>
> Signed-off-by: Thomas Bonnefille <thomas.bonnefille at bootlin.com>

I'm trying to use this patch on top of current master (2025.02-268-g637eead755)
and there seems to be a minor incompatibility:

output/build/mpv-0.35.1/meson.build:1:0: ERROR: Option "build-date" value disabled is not boolean (true or false).

> +MPV_CONF_OPTS += -Dbuild-date=disabled

With that changed to -Dbuild-date=false:

Tested-by: J. Neuschäfer <j.ne at posteo.net>

Thanks!