[gtk-osx] Set the gtk-engines git branch on gtk-engines-2-22.

[John Ralls <jralls src gnome org>]

commit c914e6e9f6454abe98cc87368c027fd1407274cb
Author: John Ralls <jralls ceridwen us>
Date:   Fri Mar 4 06:50:15 2016 -0800

    Set the gtk-engines git branch on gtk-engines-2-22.
    
    See comment in patch for reason.

 modulesets-unstable/gtk-osx-themes.modules |    8 +++++++-
 modulesets/gtk-osx-themes.modules          |    2 +-
 2 files changed, 8 insertions(+), 2 deletions(-)
---
diff --git a/modulesets-unstable/gtk-osx-themes.modules b/modulesets-unstable/gtk-osx-themes.modules
index b56b8af..1fa7a4d 100644
--- a/modulesets-unstable/gtk-osx-themes.modules
+++ b/modulesets-unstable/gtk-osx-themes.modules
@@ -63,8 +63,14 @@
     </dependencies>
   </autotools>
 
+  <!-- Master on gtk-engines got adjusted in the Gtk+-2.90 cycle to
+       require Gtk+-3. Shortly thereafter engine based theming was
+       dropped from Gtk+-3 in favor of CSS theming, so it doesn't
+       actually work with Gtk+-3 either. The gtk-engines-2-22 branch
+       is the last one before that change and has actually gotten a
+       maintenance change. -->
   <autotools id="gtk-engines">
-    <branch />
+    <branch module="gtk-engines-2-22"/>
     <after>
       <dep package="meta-gtk-osx-core"/>
     </after>
diff --git a/modulesets/gtk-osx-themes.modules b/modulesets/gtk-osx-themes.modules
index 6a55581..927304f 100644
--- a/modulesets/gtk-osx-themes.modules
+++ b/modulesets/gtk-osx-themes.modules
@@ -64,7 +64,7 @@
   </autotools>
 
   <autotools id="gtk-engines">
-    <branch />
+    <branch module="gtk-engines-2-22"/>
     <after>
       <dep package="meta-gtk-osx-core"/>
     </after>