commit 50f233efe4d37a20b4372cf21f1c462914ea5d40
author Alex Gaynor <alex.gaynor@gmail.com> Mon Jan 06 11:10:40 2014 -0800
committer Alex Gaynor <alex.gaynor@gmail.com> Mon Jan 06 11:10:40 2014 -0800
tree beb48e5fce2955684435850c740c82e182dd4d60
parent 6078221d25fd3eddef83a63ce026efd24c0a2107

Check to see if a binding is available before trying to install it

setup.py

diff --git a/setup.py b/setup.py
index 0bdad48..514fdab 100644
--- a/setup.py
+++ b/setup.py
@@ -47,10 +47,12 @@
         from cryptography.hazmat.primitives import constant_time, padding
 
         self.distribution.ext_modules = [
-            Binding().ffi.verifier.get_extension(),
             constant_time._ffi.verifier.get_extension(),
             padding._ffi.verifier.get_extension()
         ]
+        if Binding.is_available():
+            self.distribution.ext_modules.append(Binding().ffi.verifier.get_extension())
+
         build.finalize_options(self)