1 files changed, 7 insertions, 7 deletions

diff --git a/src/lib/libcrypto/rc4/rc4.h b/src/lib/libcrypto/rc4/rc4.h
index 7418c2a9a2..8722091f2e 100644
--- a/src/lib/libcrypto/rc4/rc4.h
+++ b/src/lib/libcrypto/rc4/rc4.h
@@ -59,16 +59,16 @@
 #ifndef HEADER_RC4_H
 #define HEADER_RC4_H
 
-#ifdef  __cplusplus
-extern "C" {
-#endif
-
-#ifdef NO_RC4
+#ifdef OPENSSL_NO_RC4
 #error RC4 is disabled.
 #endif
 
 #include <openssl/opensslconf.h> /* RC4_INT */
 
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
 typedef struct rc4_key_st
         {
         RC4_INT x,y;
@@ -77,8 +77,8 @@ typedef struct rc4_key_st
 
  
 const char *RC4_options(void);
-void RC4_set_key(RC4_KEY *key, int len, unsigned char *data);
-void RC4(RC4_KEY *key, unsigned long len, unsigned char *indata,
+void RC4_set_key(RC4_KEY *key, int len, const unsigned char *data);
+void RC4(RC4_KEY *key, unsigned long len, const unsigned char *indata,
                 unsigned char *outdata);
 
 #ifdef  __cplusplus