Like MD_Init, MD now must include a NULL engine pointer in its definition.

#include <openssl/md5.h>

#define MD_DIGEST_LENGTH	MD5_DIGEST_LENGTH

#define MD_Init(a)		EVP_DigestInit_ex(a,EVP_md5(), NULL)

#define	MD(a,b,c)		EVP_Digest(a,b,c,NULL,EVP_md5())

#define	MD(a,b,c)		EVP_Digest(a,b,c,NULL,EVP_md5(), NULL)

#elif defined(USE_SHA1_RAND)

#include <openssl/sha.h>

#define MD_DIGEST_LENGTH	SHA_DIGEST_LENGTH

#define MD_Init(a)		EVP_DigestInit_ex(a,EVP_sha1(), NULL)

#define	MD(a,b,c)		EVP_Digest(a,b,c,NULL,EVP_sha1())

#define	MD(a,b,c)		EVP_Digest(a,b,c,NULL,EVP_sha1(), NULL)

#elif defined(USE_MDC2_RAND)

#include <openssl/mdc2.h>

#define MD_DIGEST_LENGTH	MDC2_DIGEST_LENGTH

#define MD_Init(a)		EVP_DigestInit_ex(a,EVP_mdc2(), NULL)

#define	MD(a,b,c)		EVP_Digest(a,b,c,NULL,EVP_mdc2())

#define	MD(a,b,c)		EVP_Digest(a,b,c,NULL,EVP_mdc2(), NULL)

#elif defined(USE_MD2_RAND)

#include <openssl/md2.h>

#define MD_DIGEST_LENGTH	MD2_DIGEST_LENGTH

#define MD_Init(a)		EVP_DigestInit_ex(a,EVP_md2(), NULL)

#define	MD(a,b,c)		EVP_Digest(a,b,c,NULL,EVP_md2())

#define	MD(a,b,c)		EVP_Digest(a,b,c,NULL,EVP_md2(), NULL)

#endif