Issue: The sys-apps/baselayout-2.4.1-r2 requires a symlink in /usr/local: lib → lib64. This doesn't make sense at all, even because it creates a dead link if lib64 doesn't exists. It tries to convert an existing folder into a symlink which fails if the folder is not empty. Thus the installation fails.

The last stable ebuild baselayout::gentoo will be patched to remove any operation with  /usr/local/lib . The ebuild will be left untouched if the patch fails.