/usr/share/man/man1/powerpc64-linux-gnu-gnatchop.1.gz is in gnat-5-powerpc64-linux-gnu 5.3.1-14ubuntu2cross1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man1/powerpc64-linux-gnu-gnatchop-5.1.gz