#include <string.h>
#include <openssl/sha.h>
-#ifndef NO_SHA1
-unsigned char *SHA1(unsigned char *d, unsigned long n, unsigned char *md)
+#ifndef OPENSSL_NO_SHA1
+unsigned char *SHA1(const unsigned char *d, unsigned long n, unsigned char *md)
{
SHA_CTX c;
static unsigned char m[SHA_DIGEST_LENGTH];