/usr/share/man/ is in gnat-8-x86-64-linux-gnux32 8-20180414-1ubuntu2cross1.
This file is owned by root:root, with mode 0o755.
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/usr/share/man/man1/x86_64-linux-gnux32-gnatlink.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatls-8.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatls.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatmake-8.1.gz
/usr/share/man/man1/
/usr/share/man/man1/x86_64-linux-gnux32-gnat-8.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnat.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatbind-8.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatbind.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatchop-8.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatchop.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatclean-8.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatclean.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatfind-8.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatfind.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatgcc.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnathtml-8.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnathtml.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatkr-8.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatkr.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatlink-8.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatmake.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatname-8.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatname.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatprep-8.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatprep.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatxref-8.1.gz
/usr/share/man/man1/x86_64-linux-gnux32-gnatxref.1.gz