#ifdefs not properly faced in printouts

[Mats Emacs]

(cvs emacs from 2005-04-17 and a newer from 2005-05-24)
Preprocessor directives, ie "#include", "#ifdef", "#if", "#end", do
not get coloured as expected while using ps-print-buffer-with-faces.
The same stands for ps-print-region-with-faces.

A somewhat non correlated issue:
The help texts say about these commands:
"This command works only if you are using a window system .." Is this
correct now that emacs can show colours in non window systems?