Fix two remaining prototype-related warnings

crypto/asn1/a_digest.c

@@ -64,6 +64,7 @@
 #include "cryptlib.h"
 #include <openssl/evp.h>
 #include <openssl/buffer.h>
+#include <openssl/x509.h>
 
 int ASN1_digest(int (*i2d)(), EVP_MD *type, char *data, unsigned char *md,
 	     unsigned int *len)

crypto/pem/pem.h

@@ -564,6 +564,8 @@ DECLARE_PEM_rw(DHparams, DH)
 
 DECLARE_PEM_rw_cb(PrivateKey, EVP_PKEY)
 
+int PEM_write_bio_PKCS8PrivateKey(BIO *, EVP_PKEY *, const EVP_CIPHER *,
+                                  char *, int, pem_password_cb *, void *);
 int PEM_write_PKCS8PrivateKey(FILE *fp,EVP_PKEY *x,const EVP_CIPHER *enc,
 			      char *kstr,int klen, pem_password_cb *cd, void *u);
 #endif /* SSLEAY_MACROS */