From bedf15c16e67d81236d8a1e39c7e59939ea39f41 Mon Sep 17 00:00:00 2001
From: Laurent Sansonetti <lrz@chopine.be>
Date: Tue, 3 Jan 2012 21:27:14 +0100
Subject: [PATCH] fix build system for ruby 1.8, ruby 1.9.2 and ruby 1.9.3

---
 lib/motion/project/builder.rb | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/motion/project/builder.rb b/lib/motion/project/builder.rb
index bce8eebe..9dce4e43 100644
--- a/lib/motion/project/builder.rb
+++ b/lib/motion/project/builder.rb
@@ -120,7 +120,10 @@ module Motion; module Project;
       end
  
       # Start build.
-      builders.each { |queue, th| th.wakeup }
+      builders.each do |queue, th|
+        sleep 0.01 while th.status != 'sleep'
+        th.wakeup
+      end
       builders.each { |queue, th| th.join }
 
       # Merge the result (based on build order).