Thanks to all for these first replies.

Yes, in principle, it's possible to add OPTION_USE_CAIROPS as a new build (or configure)

option. But my feeling, at this point, is that this would not correspond to real-life situations because:

- OPTION_USE_PANGO requires package libpango-1.0-dev to get both libpango-1.0.so

and pango-related include files. In Debian and Ubuntu, that package includes libpangocairo-1.0.so .

Thus, when OPTION_USE_PANGO's requirements are satisfied, libpangocairo-1.0.so is also there,

at least with Debian/Ubuntu.

- OPTION_USE_PANGO makes sense for apps that potentially handle not-Latin characters.
It seems logical that FLTK give them vectorial printing support at the same time.

- If OPTION_USE_PANGO is not activated, the usual PostScript driver remains in the code which

gives full printing support, except it draws non-Latin characters in bitmap form.

P.S. I found okular, and its "Import PS file" command, useful to display .ps files under Debian.