media-libs/x265-1.7 provides /usr/lib64/libx265.so.59 with soname="libx265.so.59", so SLOT="0/59" instead of SLOT="0/48" should be set in ebuild. $ scanelf -S $(qlist media-libs/x265 | sort) TYPE SONAME FILE ET_EXEC /usr/bin/x265 ET_DYN libx265.so.59 /usr/lib64/libx265.so ET_DYN libx265.so.59 /usr/lib64/libx265.so.59
indeed fixed, thx