[poppler] fix build with gtk-doc 1.27

[Albert Astals Cid]

are you subscribed to the list? 

If not i'd really welcome if you used http://bugs.freedesktop.org/ to send 
patches.

Anyhow it seems someone already sent 
https://bugs.freedesktop.org/show_bug.cgi?id=105075

Cheers,
  Albert

El dimecres, 7 de febrer de 2018, a les 17:20:27 CET, David Tardon va 
escriure:
> Hello,
> 
> building with ENABLE_GTK_DOC fails with gtk-doc 1.27 (I'm pretty sure the
> culprit is
> https://git.gnome.org/browse/gtk-doc/commit/?id=775e4a467dc448a130d33ddcc35
> a879f8dfb5e97). The attached patch fixes that.
> 
> D.