[XeTeX] xyling.sty compatibility with Xelatex

[Pavel Stranak]

Hello,

I am just typesetting a paper that draws trees using macros \B and \K  
from xyling.sty.
It works fine in latex, but in xelatex I get errors while processing  
xyling saying that the macros \B and \T are already defined. Then the  
edges in a tree are not drawn (thats what \B and \K are for).

Renaming the macros in the xyling.sty and in the paper helps, but I  
wonder whether there is a solution that would make xyling really  
compatible with xelatex.


-Pavel