Muttprint can optionally use X-Face headers, for which it needs the media-libs/compface package. There is a corresponding USE flag already, so it should probably have it in IUSE and have media-libs/compface as a conditional dependency. Reproducible: Always Patch for the current stable ebuild: 14c14 < IUSE="" --- > IUSE="xface" 21c21,22 < app-text/psutils" --- > app-text/psutils > xface? ( media-libs/compface )"
(In reply to comment #0) We are not adding use flags for dependencies without affecting the compile result in any way; the above patch doesn't do anything.