From 29eb6f83f6b9af5635952a3d117e1725ef9439e8 Mon Sep 17 00:00:00 2001
From: Michael Webster <miketwebster@gmail.com>
Date: Tue, 20 Jun 2017 11:27:44 +0200
Subject: src/prompt-box.vala: get_preferred_height() ovrride only needed with
 GTK3 >= 3.20.

---
 src/prompt-box.vala | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/prompt-box.vala b/src/prompt-box.vala
index 49c2403..6d5bc13 100644
--- a/src/prompt-box.vala
+++ b/src/prompt-box.vala
@@ -296,6 +296,7 @@ public class PromptBox : FadableBox
         last_row = start_row;
     }
 
+#if HAVE_GTK_3_20_0
     private int round_to_grid (int size)
     {
         var num_grids = size / grid_size;
@@ -315,6 +316,7 @@ public class PromptBox : FadableBox
         if (position <= -1 || position >= 1)
             min = nat = grid_size;
     }
+#endif
 
     public void set_zone (Gtk.Widget zone)
     {
-- 
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