I was trying to build this version of ffmpeg, and it appears that if the vulkan use-flag is set, it does not try to pull in the vulkan-headers before building the package. I manually installed dev-util/vulkan-headers-1.3.216 and it compiled just fine, otherwise it will complain about not being able to find vulkan during the config checks. Reproducible: Always Steps to Reproduce: 1. under the plasma / systemd profile, with vulkan use flag set 2. attempt to install ffmpeg 3. it will complain it cannot find vulkan during the build 4. install vulkan-headers 5. ffmpeg, with vulkan useflag builds just fine.
Request ebuild review.