1 files changed, 5 insertions, 1 deletions
diff --git a/SConstruct b/SConstruct
index 2e86832c..89b58f69 100644
--- a/SConstruct
+++ b/SConstruct
@@ -439,7 +439,11 @@ EnsureSConsVersion(0, 94)
 
 SetOption('implicit_cache', 1)
 
-Decider('MD5-timestamp')
+try:
+	Decider('MD5-timestamp')
+except:
+	SourceSignatures('MD5')
+	TargetSignatures('build')
 
 
 #############