*I do not know how to solve the problem. How to find out which is the wrong symbolic link. What is the purpose of zz-files on portage directories
# emerge @preserved-rebuild raptor
Local copy of remote index is up-to-date and will be used.
Calculating dependencies… done!
[binary R ] net-misc/wget-1.20.1
[binary R ] media-libs/raptor-2.0.15-r1
Emerging binary (1 of 2) net-misc/wget-1.20.1::gentoo
Emerging binary (2 of 2) media-libs/raptor-2.0.15-r1::gentoo
Installing (2 of 2) media-libs/raptor-2.0.15-r1::gentoo
Installing (1 of 2) net-misc/wget-1.20.1::gentoo
Jobs: 2 of 2 complete Load avg: 1.24, 1.12, 0.54
* Messages for package media-libs/raptor-2.0.15-r1:
* One or more symlinks to directories have been preserved in order to
* ensure that files installed via these symlinks remain accessible. This
* indicates that the mentioned symlink(s) may be obsolete remnants of an
* old install, and it may be appropriate to replace a given symlink with
* the directory that it points to.
No outdated packages were found on your system.
* Regenerating GNU info directory index…
* Processed 120 info files.
!!! existing preserved libs:
* - /usr/lib64/libidn2.so.0
* - /usr/lib64/libidn2.so.0.3.4
* used by /usr/bin/wget (net-misc/wget-1.20.1)
* used by /usr/lib64/libraptor2.so.0.0.0 (media-libs/raptor-2.0.15-r1)
Use emerge @preserved-rebuild to rebuild packages using these libraries
The message that the system writes is nonsense because it was at the beginning that command was done