From daa9c2e4caaec2c2c5c262970c936d87332c85d0 Mon Sep 17 00:00:00 2001
From: Claudio Sacerdoti Coen <claudio.sacerdoticoen@unibo.it>
Date: Wed, 11 Oct 2006 14:58:23 +0000
Subject: [PATCH] Some hocus-pocus to avoid a common race condition (Gtk/???
 code not reentrant). I bet the "avoided" problem will surface again...

---
 matita/matitaGui.ml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/matita/matitaGui.ml b/matita/matitaGui.ml
index 840d057c2..19251f074 100644
--- a/matita/matitaGui.ml
+++ b/matita/matitaGui.ml
@@ -422,7 +422,9 @@ class gui () =
         main#buttonsToolbar#misc#set_sensitive true;
         develList#buttonsHbox#misc#set_sensitive true;
         main#scriptMenu#misc#set_sensitive true;
-        source_view#set_editable true
+        source_view#set_editable true;
+        (*The next line seems sufficient to avoid some unknown race condition *)
+        GtkThread.sync (fun () -> ()) ()
       in
       let worker_thread = ref None in
       let notify_exn exn =
-- 
2.39.2