-int EVP_OpenInit(EVP_CIPHER_CTX *ctx, EVP_CIPHER *type, unsigned char *ek,
- int ekl, unsigned char *iv, EVP_PKEY *priv)
+#ifndef OPENSSL_NO_RSA
+
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include <openssl/x509.h>
+#include <openssl/rsa.h>
+
+int EVP_OpenInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
+ const unsigned char *ek, int ekl, const unsigned char *iv,
+ EVP_PKEY *priv)