--- evince-3.18.0/backend/pdf/ev-poppler.cc.orig	2015-09-25 12:25:31.343557800 +0300
+++ evince-3.18.0/backend/pdf/ev-poppler.cc	2015-09-25 12:25:48.411850800 +0300
@@ -23,6 +23,7 @@
 
 #include <math.h>
 #include <string.h>
+#include <unistd.h>
 #include <gtk/gtk.h>
 #include <poppler.h>
 #include <poppler-document.h>
