D16406: Fix build with poppler<0.64

[Antonio Rojas]

arojas marked an inline comment as done.

REPOSITORY
  R8 Calligra

REVISION DETAIL
  https://phabricator.kde.org/D16406

To: arojas, #calligra:_3.0, aacid, pino
Cc: rjvbb, pino, Calligra-Devel-list, dcaliste, cochise, vandenoever