[eog] Raise gtk+ dependency to 2.17.5

[Felix Riemann <friemann src gnome org>]

commit 659403e321ef02fca024342773042c96300a16d6
Author: Felix Riemann <friemann gnome org>
Date:   Sun Nov 22 12:32:59 2009 +0100

    Raise gtk+ dependency to 2.17.5
    
    This version is needed for commit d6b1a635 due to the accessor to the
    activatable property of the ToggleCellRenderer.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 6d09081..e081a4c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -83,7 +83,7 @@ GNOME_DOC_INIT
 # GNOME Libs
 # **********
 
-GTK_REQUIRED=2.15.2
+GTK_REQUIRED=2.17.5
 GLIB_REQUIRED=2.15.3
 GNOME_DESKTOP_REQUIRED=2.25.1
 GDKPIXBUF_REQUIRED=2.4.0