[XeTeX] using Didot.dfont in Linux

[Pablo Rodríguez]

Using fondu (http://fondu.sourceforge.net/) I have extracted the ttf
fonts contained in Didot.dfont (from a MacOS X computer). If I use it
with XeTeX for Linux, they work fine, but xdvipdfmx complains:

** WARNING ** Unable to read TrueType Unicode cmap table.
** WARNING ** Failed to load ToUnicode CMap for font "Didot"
** WARNING ** Unable to read TrueType Unicode cmap table.
** WARNING ** Failed to load ToUnicode CMap for font "Didot-Italic"

It seems that the Didot ttf fonts cmap table with Mac Unicode enconding
(I was told). And I don't know whether xdvipdfmx can handle this or it
requires a Windows encoding.

And I don't know whether due to this, XeTeX for Linux seems not to be
able to apply the liga and smcp tags.


Pablo