Ebuilds depend on app-emulation/emul-linux-x86-compat on amd64. However, none of the binaries links against libstdc++.so.5: TYPE NEEDED FILE ET_EXEC libm.so.6,libpthread.so.0,libc.so.6 ./en/nwserver ET_EXEC libm.so.6,libpthread.so.0,libc.so.6 ./common/nwserver So above-mentioned dependency should be removed from RDEPEND, for all ebuilds of the package: nwn-ded-1.68-r1.ebuild nwn-ded-1.69.ebuild
In fact, both app-emulation/emul-linux-x86-baselibs and app-emulation/emul-linux-x86-compat are unnecessary and should be removed from RDEPEND.