From 67769cb3a7673604be8e1ddcc8af2f3be552d905 Mon Sep 17 00:00:00 2001
From: Pawel Tomulik <ptomulik@meil.pw.edu.pl>
Date: Wed, 11 May 2016 02:17:30 +0200
Subject: fixed issue with _xxxxxxVERSIONFLAGS

---
 src/engine/SCons/Defaults.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/engine/SCons/Defaults.py b/src/engine/SCons/Defaults.py
index 6344975..37cbc99 100644
--- a/src/engine/SCons/Defaults.py
+++ b/src/engine/SCons/Defaults.py
@@ -540,10 +540,10 @@ class Variable_Method_Caller(object):
             frame = frame.f_back
         return None
 
-# if env[version_var] id defined, returns env[flags_var], otherwise returns None
+# if $version_var is not empty, returns env[flags_var], otherwise returns None
 def __libversionflags(env, version_var, flags_var):
     try:
-        if env[version_var]:
+        if env.subst('$'+version_var):
             return env[flags_var]
     except KeyError:
         pass
-- 
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