Missing files in build

[Richard Stallman]

[[[ To any NSA and FBI agents reading my email: please consider    ]]]
[[[ whether defending the US Constitution against all enemies,     ]]]
[[[ foreign or domestic, requires you to follow Snowden's example. ]]]

I updated from master a few days ago, copied the whole directory tree,
and tried to build Emacs there.  I got this error message:

charsets directory not found:
/usr/local/share/emacs/27.0.50/etc/charsets
Emacs will not function correctly without the character map files.

What files are supposed to be in that directory, and what is supposed to put
them there?

I am NOT going to install the Emacs I build.
I am going to run it in the build directory.
That should not require installing any files it depends on.

-- 
Dr Richard Stallman
President, Free Software Foundation (gnu.org, fsf.org)
Internet Hall-of-Famer (internethalloffame.org)
Skype: No way! See stallman.org/skype.html.