#endif
# include <openssl/e_os2.h>
+# include <openssl/safestack.h>
typedef struct ossl_provider_st OSSL_PROVIDER; /* Provider Object */
typedef struct buf_mem_st BUF_MEM;
+STACK_OF(BIGNUM);
+STACK_OF(BIGNUM_const);
+
typedef struct err_state_st ERR_STATE;
typedef struct evp_cipher_st EVP_CIPHER;