[Buildroot] [PATCH 1/1] package/mesa3d: fix build with egl but without drm, wayland or x11

[Yann E. MORIN]

Fabrice, All,

On 2019-12-28 19:29 +0100, Fabrice Fontaine spake thusly:
> A user can enable mesa3d and EGL by selecting
> BR2_PACKAGE_MESA3D_OPENGL_EGL
> 
> This will result in a build failure if the user does not select a driver
> that enables drm, wayland or x11 as platforms will be empty.
> 
> To fix this build failure, always enable surfaceless platform which
> defining property is that it has no native surfaces:
> https://gitlab.freedesktop.org/mesa/mesa/blob/master/docs/specs/EGL_MESA_platform_surfaceless.txt
> 
> Fixes:
>  - http://autobuild.buildroot.org/results/8960b950f79be82f81db20be41fa4b47bc76dee8
> 
> Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>

Applied to master, thanks.

I really pondered whrther we would wnat to make that optional (i.e. used
only when needed), but it is would need a bit of overhaul of the current
config options, and mesa3d is already a big hairball of options. So I
just kept it as-is...

Regards,
Yann E. MORIN.

> ---
>  package/mesa3d/mesa3d.mk | 17 +++++++++--------
>  1 file changed, 9 insertions(+), 8 deletions(-)
> 
> diff --git a/package/mesa3d/mesa3d.mk b/package/mesa3d/mesa3d.mk
> index 4204e186f5..72686c72ea 100644
> --- a/package/mesa3d/mesa3d.mk
> +++ b/package/mesa3d/mesa3d.mk
> @@ -158,22 +158,23 @@ endef
>  MESA3D_POST_INSTALL_STAGING_HOOKS += MESA3D_REMOVE_OPENGL_HEADERS
>  endif
>  
> +MESA3D_PLATFORMS = surfaceless
>  ifeq ($(BR2_PACKAGE_MESA3D_DRI_DRIVER),y)
> -MESA3D_PLATFORMS = drm
> +MESA3D_PLATFORMS += drm
>  else ifeq ($(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_VC4),y)
> -MESA3D_PLATFORMS = drm
> +MESA3D_PLATFORMS += drm
>  else ifeq ($(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_ETNAVIV),y)
> -MESA3D_PLATFORMS = drm
> +MESA3D_PLATFORMS += drm
>  else ifeq ($(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_FREEDRENO),y)
> -MESA3D_PLATFORMS = drm
> +MESA3D_PLATFORMS += drm
>  else ifeq ($(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_LIMA),y)
> -MESA3D_PLATFORMS = drm
> +MESA3D_PLATFORMS += drm
>  else ifeq ($(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_PANFROST),y)
> -MESA3D_PLATFORMS = drm
> +MESA3D_PLATFORMS += drm
>  else ifeq ($(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_VIRGL),y)
> -MESA3D_PLATFORMS = drm
> +MESA3D_PLATFORMS += drm
>  else ifeq ($(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_RADEONSI),y)
> -MESA3D_PLATFORMS = drm
> +MESA3D_PLATFORMS += drm
>  endif
>  ifeq ($(BR2_PACKAGE_WAYLAND),y)
>  MESA3D_DEPENDENCIES += wayland wayland-protocols
> -- 
> 2.24.0
> 
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