/usr/lib/gcc-cross/powerpc-linux-gnuspe/5/liblto_plugin.so.0 is in cpp-5-powerpc-linux-gnuspe 5.5.0-12ubuntu1cross1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/gcc-cross/powerpc-linux-gnuspe/5/liblto_plugin.so.0.0.0