Fix signed/unsigned warnings.

1 files changed, 1 insertions, 1 deletions

diff --git a/crypto/md5/md5.h b/crypto/md5/md5.h
index d9b7383446..d10bc8397f 100644
--- a/crypto/md5/md5.h
+++ b/crypto/md5/md5.h
@@ -103,7 +103,7 @@ typedef struct MD5state_st
 	} MD5_CTX;
 
 void MD5_Init(MD5_CTX *c);
-void MD5_Update(MD5_CTX *c, const unsigned char *data, unsigned long len);
+void MD5_Update(MD5_CTX *c, const void *data, unsigned long len);
 void MD5_Final(unsigned char *md, MD5_CTX *c);
 unsigned char *MD5(const unsigned char *d, unsigned long n, unsigned char *md);
 void MD5_Transform(MD5_CTX *c, const unsigned char *b);