-#if !defined(USE_MD5_RAND) && !defined(USE_SHA1_RAND) && !defined(USE_MDC2_RAND) && !defined(USE_MD2_RAND)
-#if !defined(NO_SHA) && !defined(NO_SHA1)
-#define USE_SHA1_RAND
-#elif !defined(NO_MD5)
-#define USE_MD5_RAND
-#elif !defined(NO_MDC2) && !defined(NO_DES)
-#define USE_MDC2_RAND
-#elif !defined(NO_MD2)
-#define USE_MD2_RAND
-#else
-#error No message digest algorithm available
-#endif
-#endif
-
-/* Changed how the state buffer used. I now attempt to 'wrap' such
- * that I don't run over the same locations the next time go through
- * the 1023 bytes - many thanks to
- * Robert J. LeBlanc <rjl@renaissoft.com> for his comments
- */
-
-#if defined(USE_MD5_RAND)
-#include <openssl/md5.h>
-#define MD_DIGEST_LENGTH MD5_DIGEST_LENGTH
-#define MD_CTX MD5_CTX
-#define MD_Init(a) MD5_Init(a)
-#define MD_Update(a,b,c) MD5_Update(a,b,c)
-#define MD_Final(a,b) MD5_Final(a,b)
-#define MD(a,b,c) MD5(a,b,c)
-#elif defined(USE_SHA1_RAND)
-#include <openssl/sha.h>
-#define MD_DIGEST_LENGTH SHA_DIGEST_LENGTH
-#define MD_CTX SHA_CTX
-#define MD_Init(a) SHA1_Init(a)
-#define MD_Update(a,b,c) SHA1_Update(a,b,c)
-#define MD_Final(a,b) SHA1_Final(a,b)
-#define MD(a,b,c) SHA1(a,b,c)
-#elif defined(USE_MDC2_RAND)
-#include <openssl/mdc2.h>
-#define MD_DIGEST_LENGTH MDC2_DIGEST_LENGTH
-#define MD_CTX MDC2_CTX
-#define MD_Init(a) MDC2_Init(a)
-#define MD_Update(a,b,c) MDC2_Update(a,b,c)
-#define MD_Final(a,b) MDC2_Final(a,b)
-#define MD(a,b,c) MDC2(a,b,c)
-#elif defined(USE_MD2_RAND)
-#include <openssl/md2.h>
-#define MD_DIGEST_LENGTH MD2_DIGEST_LENGTH
-#define MD_CTX MD2_CTX
-#define MD_Init(a) MD2_Init(a)
-#define MD_Update(a,b,c) MD2_Update(a,b,c)
-#define MD_Final(a,b) MD2_Final(a,b)
-#define MD(a,b,c) MD2(a,b,c)
-#endif
-
-#include <openssl/rand.h>
-