After unmerging app-arch/snappy I noticed that =app-emulation/xen-tools-4.8.0 has automatic on that package: > !!! existing preserved libs: > >>> package: app-arch/snappy-1.1.3-r1 > * - /usr/lib64/libsnappy.so.1 > * - /usr/lib64/libsnappy.so.1.3.0 > * used by /usr/libexec/xen/bin/qemu-system-i386 (app-emulation/xen-tools-4.8.0)
https://github.com/gentoo/gentoo/pull/5925
https://github.com/gentoo/gentoo/commit/f9ba137de38bf2544a0c471fce4e339048287bbf