build: Bump atk dependency to 2.7.5

The following patch added a dependency on a new API first available in that
release:

commit 92f0c5c38476687a9a50c31eac4f674a7e0b9c91
Author: Mike Gorse <mgorse@suse.com>
Date:   Mon Dec 3 16:07:23 2012 -0600

    Add accessibility for GtkLevelBar and value test

diff --git a/configure.ac b/configure.ac
index df2c6dc4b74f6223322849315b2cafa9db5baf0e..3d11488adfbab3f456d517ca951865e009198d84 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -44,7 +44,7 @@ m4_define([gtk_binary_version], [3.0.0])
 # required versions of other packages
 m4_define([glib_required_version], [2.35.3])
 m4_define([pango_required_version], [1.32.4])
-m4_define([atk_required_version], [2.7.4])
+m4_define([atk_required_version], [2.7.5])
 m4_define([cairo_required_version], [1.10.0])
 m4_define([gdk_pixbuf_required_version], [2.27.1])
 m4_define([introspection_required_version], [1.32.0])