Added C++ support for function prototypes.

src/encode/base64.h

@@ -35,5 +35,13 @@
  * Note: If this box doesn't appear square, then you need to fix your tabs.	*
  ****************************************************************************/
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 int b64_encode(char *target, size_t tlen, const char *source, size_t slen);
 int b64_decode(char *target, size_t tlen, const char *source, size_t slen);
+
+#ifdef __cplusplus
+}
+#endif
\ No newline at end of file

src/hash/md5.h

@@ -48,10 +48,18 @@ typedef struct
   BYTE	buffer[64];
 } MD5;
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 void MD5_open(MD5* ctx);
 void MD5_digest(MD5* ctx, const void* buf, size_t len);
 void MD5_close(MD5* ctx, BYTE digest[MD5_DIGEST_SIZE]);
 BYTE* MD5_calc(BYTE digest[MD5_DIGEST_SIZE], const void* buf, size_t len);
 BYTE* MD5_hex(BYTE* dest, const BYTE digest[MD5_DIGEST_SIZE]);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif