[evince] build: Remove annoying compile warnings about GTK+ symbols recently deprecated

[Carlos Garcia Campos <carlosgc src gnome org>]

commit adcb3a6e743a376140e7fa393429cbc0162c98e7
Author: Carlos Garcia Campos <carlosgc gnome org>
Date:   Mon Jul 22 19:48:14 2013 +0200

    build: Remove annoying compile warnings about GTK+ symbols recently deprecated

 configure.ac |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 9a5145b..bc4c16b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -123,6 +123,8 @@ NAUTILUS_REQUIRED=2.91.4
 AC_SUBST([GLIB_REQUIRED])
 AC_SUBST([GTK_REQUIRED])
 
+AC_DEFINE([GDK_VERSION_MIN_REQUIRED], [GDK_VERSION_3_8], [Minimum GTK/GDK version required])
+
 GNOME_ICON_THEME_REQUIRED=2.17.1
 LIBXML_REQUIRED=2.5.0