[gnome-boxes/wip/rishi/rhel: 13/14] configure: Require gtk+ >= 3.22.20

[Debarshi Ray <debarshir src gnome org>]

commit c321bb06a1d044d3b7b119dc409720ea703f2bd6
Author: Debarshi Ray <debarshir gnome org>
Date:   Wed Sep 6 19:04:43 2017 +0200

    configure: Require gtk+ >= 3.22.20
    
    In a following patch, we will need to use GtkBuilder's "type-func"
    attribute to override its built-in heuristics. Prior to this,
    GtkBuilder wouldn't let the "type-func" override the heuristics if the
    "class" attribute was also present. On the other hand, older Vala
    compilers treat the "class" attribute as mandatory.
    
    It's slightly more convenient to bump the gtk+ requirement than Vala
    because gtk+-3.22.x is a long-term stable series, so older
    distributions are likely to keep it updated.
    
    See:
    https://bugzilla.gnome.org/show_bug.cgi?id=786932
    https://bugzilla.gnome.org/show_bug.cgi?id=787033
    https://bugs.webkit.org/show_bug.cgi?id=175937
    
    https://bugzilla.gnome.org/show_bug.cgi?id=786679

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 5b30298..08482e3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -54,7 +54,7 @@ GLIB_MIN_VERSION=2.52.0
 AC_SUBST(GLIB_MIN_VERSION)
 GOBJECT_INTROSPECTION_MIN_VERSION=0.9.6
 GOVIRT_MIN_VERSION=0.3.4
-GTK_MIN_VERSION=3.19.8
+GTK_MIN_VERSION=3.22.20
 GTK_VNC_MIN_VERSION=0.4.4
 LIBVIRT_GLIB_MIN_VERSION=0.2.3
 LIBVIRT_GCONFIG_MIN_VERSION=0.2.0