[dconf] build: increase GTK+ dependency to 3.4

[Alexandre Rostovtsev <arostovtsev src gnome org>]

commit 4171008f80e95c3c7098eeac9cde47824e4943b9
Author: Alexandre Rostovtsev <tetromino gentoo org>
Date:   Wed Jun 26 09:32:51 2013 -0400

    build: increase GTK+ dependency to 3.4
    
    For GtkApplicationWindow
    
    https://bugzilla.gnome.org/show_bug.cgi?id=703122

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index b1bacac..597b663 100644
--- a/configure.ac
+++ b/configure.ac
@@ -53,7 +53,7 @@ AC_ARG_ENABLE(editor,
 AM_CONDITIONAL(ENABLE_EDITOR, test "x$enable_editor" != "xno")
 
 if test "x$enable_editor" != "xno"; then
-  PKG_CHECK_MODULES(gtk, gtk+-3.0)
+  PKG_CHECK_MODULES(gtk, gtk+-3.0 >= 3.4)
   PKG_CHECK_MODULES(gmodule, gmodule-2.0)
   PKG_CHECK_MODULES(libxml, libxml-2.0)
 fi