make-dist failure on master

[Phillip Lord]

I am trying to build a dist tar ball of master following an
out-of-source build, but am getting this failure.


./make-dist --no-check --snapshot --no-update --no-changelog
Version number is 27.0.50
Creating staging directory: 'make-dist.tmp.25393'
Updating make-dist.tmp.25393/MANIFEST
Creating top directory: 'make-dist.tmp.25393/emacs-27.0.50'
Creating subdirectories
Making links to files
ln: failed to access 'admin/charsets/jisx2131-filter': No such file or directory
Cleaning up the staging directory

Not sure how recent this is, but I think this used to work. Anyone got
any idea?

Phil