The Vulkan headers add typedefs to fix aliasing issues whenever a type gets renamed. However, C doesn't allow "enum typedef" so this doesn't work if people stick the "enum" keyword in front. Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32433>