#ifndef KEX_H
#define KEX_H
+#include "config.h"
+
+#ifdef HAVE_OPENSSL
+# include <openssl/bn.h>
+# include <openssl/evp.h>
+#endif
+#ifdef HAVE_SSL
+# include <ssl/bn.h>
+# include <ssl/evp.h>
+#endif
+
#define KEX_DH1 "diffie-hellman-group1-sha1"
#define KEX_DSS "ssh-dss"