It looks like this may be automagic since there is no meson_feature in the ebuild but it appears in the project's meson_options.txt. On a system with media-sound/mpd-0.23.15-r1 USE="alsa audiofile bzip2 cue dbus eventfd faad ffmpeg fifo flac icu id3tag inotify libsamplerate mad network snapcast sqlite vorbis zlib" yajl was depcleaned since it was no longer needed by any package resulting in the following preserved lib: >>> package: dev-libs/yajl-2.1.0-r4 * - /usr/lib64/libyajl.so.2 * - /usr/lib64/libyajl.so.2.1.0 * used by /usr/bin/mpd (media-sound/mpd-0.23.15-r1) Reproducible: Always