[OE-core] [PATCH] webkitgtk: add REQUIRED_DISTRO_FEATURES

[alexander.kanavin at linux.intel.com]

> Remove x11 from DISTRO_FEATURES ("I'm building a product that doesn't need
> or use X") and build webkitgtk.  webkitgtk depends on libxt which depends
> on libx11 which then refuses to build because you explicitly said you
> didn't want X.
>
> We're adding required_distro_feature annotations as required so that world
> builds without X11 enabled still work by skipping the recipes instead of
> failing to build.


But this means you need to add this to every recipe that directly or
indirectly depends on libx11. Which is crazy awkward and error-prone.

Why can't the tools figure out which recipes should be excluded from
builds without explicit annotations?


Alex