[gtksourceview] Bump gtk+ required version

[Sébastien Wilmet <swilmet src gnome org>]

commit e521270f76117b3eb2c12ade67c4abfe54d8dedc
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Mon Jul 8 23:24:15 2013 +0200

    Bump gtk+ required version
    
    For the composite widget templates.

 README       |    2 +-
 configure.ac |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/README b/README
index ca47aeb..25f4514 100644
--- a/README
+++ b/README
@@ -28,7 +28,7 @@ All future contributions to the project must be LGPL-licensed.
 Installation
 ============
 
-GtkSourceView requires glib >= 2.37.3, GTK+ >= 3.8 and libxml2 >= 2.6.
+GtkSourceView requires glib >= 2.37.3, GTK+ >= 3.9.7 and libxml2 >= 2.6.
 
 Simple install procedure:
 
diff --git a/configure.ac b/configure.ac
index 778ed28..9acb975 100644
--- a/configure.ac
+++ b/configure.ac
@@ -58,7 +58,7 @@ AC_CHECK_HEADERS([unistd.h])
 
 # Dependencies
 GLIB_REQUIRED_VERSION=2.37.3
-GTK_REQUIRED_VERSION=3.8.0
+GTK_REQUIRED_VERSION=3.9.7
 LIBXML_REQUIRED_VERSION=2.6.0
 GLADE_UI_REQUIRED=3.9