bug#26396: 25.1; char-displayable-p on a latin1 tty

[Paul Eggert]

Eli Zaretskii wrote:
> I can offer help in reviewing the patches and perhaps also writing
> some of that, but I cannot test the code, as I don't have a convenient
> access to a Linux console where I could run Emacs I build.

Rather than descend into this swamp I am hoping that the patch I installed is 
enough to solve Kevin's problem. The basic idea is to assume that the terminal's 
coding system (as per Emacs) is consistent with the Linux console UTF-8 output 
mode (as per the Linux kernel), i.e., it's the user's responsibility to get all 
the settings right.