#include <openssl/opensslconf.h> /* DES_LONG */
#include <openssl/e_os2.h> /* OPENSSL_EXTERN */
+#ifndef OPENSSL_NO_OLD_DES_SUPPORT
+# include <openssl/des_old.h>
+#endif
+
#ifdef OPENSSL_BUILD_SHLIBCRYPTO
# undef OPENSSL_EXTERN
# define OPENSSL_EXTERN OPENSSL_EXPORT