ps-build-face-reference

ps-build-face-reference is a variable defined in `ps-print.el'.
Its value is

t

Documentation:
Non-nil means build the reference face lists.

ps-print sets this value to nil after it builds its internal reference lists of
bold and italic faces. By setting its value back to t, you can force ps-print
to rebuild the lists the next time you invoke one of the ...-with-faces
commands.

You should set this value back to t after you change the attributes of any
face, or create new faces. Most users shouldn't have to worry about its
setting, though.

You can customize this variable.

This variable was introduced, or its default value was changed, in version 20 of Emacs.