All the necessary things for setup.py to build cffi stuff

3 files changed, 7 insertions, 2 deletions

diff --git a/cryptography/hazmat/bindings/openssl/binding.py b/cryptography/hazmat/bindings/openssl/binding.py
index 8b5e3449..ccda368e 100644
--- a/cryptography/hazmat/bindings/openssl/binding.py
+++ b/cryptography/hazmat/bindings/openssl/binding.py
@@ -135,6 +135,7 @@ class Binding(object):
                 customizations
             ),
             libraries=["crypto", "ssl"],
+            ext_package="cryptography",
         )
 
         for name in cls._modules:
diff --git a/cryptography/hazmat/primitives/constant_time.py b/cryptography/hazmat/primitives/constant_time.py
index 6502803e..c3d81221 100644
--- a/cryptography/hazmat/primitives/constant_time.py
+++ b/cryptography/hazmat/primitives/constant_time.py
@@ -42,7 +42,9 @@ uint8_t Cryptography_constant_time_bytes_eq(uint8_t *a, size_t len_a,
     /* Now check the low bit to see if it's set */
     return (mismatch & 1) == 0;
 }
-""")
+""",
+    ext_package="cryptography",
+)
 
 
 def bytes_eq(a, b):
diff --git a/cryptography/hazmat/primitives/padding.py b/cryptography/hazmat/primitives/padding.py
index e517dee0..7c5271cb 100644
--- a/cryptography/hazmat/primitives/padding.py
+++ b/cryptography/hazmat/primitives/padding.py
@@ -59,7 +59,9 @@ uint8_t Cryptography_check_pkcs7_padding(const uint8_t *data,
     /* Now check the low bit to see if it's set */
     return (mismatch & 1) == 0;
 }
-""")
+""",
+    ext_package="cryptography",
+)
 
 
 class PKCS7(object):