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-rw-r--r--Modules/_hashopenssl.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/Modules/_hashopenssl.c b/Modules/_hashopenssl.c
index a3fb052..9bdd274 100644
--- a/Modules/_hashopenssl.c
+++ b/Modules/_hashopenssl.c
@@ -18,6 +18,10 @@
#include <openssl/evp.h>
+#ifndef HASH_OBJ_CONSTRUCTOR
+#define HASH_OBJ_CONSTRUCTOR 0
+#endif
+
typedef struct {
PyObject_HEAD
PyObject *name; /* name of this hash algorithm */