From a9482398204915bbc42670a76123ec7afe5efcb3 Mon Sep 17 00:00:00 2001
From: Matt Wala <wala1@illinois.edu>
Date: Thu, 7 Sep 2017 15:25:57 -0500
Subject: [PATCH] Fix SUMPY_FORCE_SYMBOLIC_BACKEND semantics.

---
 sumpy/symbolic.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sumpy/symbolic.py b/sumpy/symbolic.py
index 49fa4059..2cfc90ba 100644
--- a/sumpy/symbolic.py
+++ b/sumpy/symbolic.py
@@ -63,7 +63,7 @@ def _find_symbolic_backend():
         if backend == "symengine" and not symengine_found:
             raise RuntimeError("could not find SymEngine: %s" % symengine_error)
 
-        USE_SYMENGINE = True
+        USE_SYMENGINE = (backend == "symengine")
     else:
         USE_SYMENGINE = symengine_found
 
-- 
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