Simplify redisplay-x/separate_textual_runs

[Aidan Kehoe]

 Ar an triochadú lá de mí Márta, scríobh Aidan Kehoe: 

 >  Ar an triochadú lá de mí Márta, scríobh Aidan Kehoe: 
 > 
 >  > [...] You’ve just done that Unicode conversion to throw away the result. 
 >  > That’s not very constructive, since the XFT redisplay routines *require*
 >  > that the supplied strings are Unicode. I’m fighting with Cygwin right now
 >  > to get it to usefully install fontconfig so I can check this out for
 >  > certain, but I believe strongly that this will break redisplay with
 >  > non-Latin-1 characters under XFT and Mule.
 > 
 > Confirmed. Cf. http://mid.gmane.org/17780.28830.970989.79622@parhasard.net
 > if you’re not sure how to tell XEmacs to use reasonble non-Latin-1 fonts
 > with XFT. Since that link seems to be broken right now, here’s the code I
 > use: 
 > 
 > (when (featurep 'xft)

That should have been 

(when (featurep 'xft-fonts)

by the way. Hopefully you noticed the code’s lack of effect and worked it
out already, but in the event that anyone else is reading, it’s worth making
clear. 

-- 
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assumed to be mad, though it may only have been indiscriminating. (Saki)