proxyprotocol on client-side can be removed on server side, and its info is then logged

proxyprotocol.h

@@ -6,12 +6,14 @@
 
 
 int pp_write_header(int pp_version, struct connection* cnx);
+int pp_log_connection(char* buffer, ssize_t buffer_len);
 int pp_header_len(char* buffer, int len);
 
 
 #else /* HAVE_PROXYPROTOCOL */
 
 static inline int pp_write_header(int pp_version, struct connection* cnx) { return 0; }
+static int pp_log_connection(char* buffer, ssize_t buffer_len) { return 0; }
 static inline int pp_header_len(char*, int) { return 0; }
 
 #endif /* HAVE_PROXYPROTOCOL */