1 files changed, 9 insertions, 1 deletions
diff --git a/tox.ini b/tox.ini
index 4d17ebe8..0b7acd66 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py26,py27,pypy,py32,py33,docs,pep8
+envlist = cffi,py26,py27,pypy,py32,py33,docs,pep8
 
 [testenv]
 deps =
@@ -7,6 +7,14 @@ deps =
     pretend
 commands = py.test --cov=cryptography/ --cov=tests/
 
+[testenv:cffi]
+basepython = python2.7
+install_command =
+setenv =
+    CFLAGS="-Wall -Wconversion -Wpedantic -Werror"
+commands =
+    python -c "import cryptography.bindings.openssl"
+
 [testenv:docs]
 deps = sphinx
 basepython = python2.7