From 9c44db371a83f97522573abfb05483b4f47a4338 Mon Sep 17 00:00:00 2001
From: Ray Speth <speth@mit.edu>
Date: Sat, 5 Nov 2016 23:53:31 -0400
Subject: [PATCH] [SCons] Fix option to build with PCH disabled

---
 src/SConscript | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/SConscript b/src/SConscript
index f95cf82a6..3d82e6b3f 100644
--- a/src/SConscript
+++ b/src/SConscript
@@ -45,7 +45,7 @@ if env['use_pch']:
                              localenv['precompiled_header'])
 else:
     removeFile('src/pch/system.h.gch')
-    env['pch_flags'] = []
+    localenv['pch_flags'] = []
     pch = None
 
 for subdir, extensions, setup in libs: