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

[Paul Eggert]

On 04/13/2017 08:01 PM, Kevin Ryde wrote:
> Would char-displayable-p always check encodable and then
> ponder what further the kernel ioctls can say about viewable glphs.

Yes, that's what char-displayable-p does now: it checks that the 
character is one of the at-most-512 characters that the Linux console 
can currently display. For Linux consoles this is independent of 
terminal-coding-system. The problem is that other parts of the code obey 
terminal-coding-system instead of what the Linux console can actually 
display.