Avoid clang-specific warnings.

* buffer.c (init_buffer): Shut up -Wself-assign.
* process.c (server_accept_connection): Shut up -Wunsequenced.

src/ChangeLog

+2014-09-17  Dmitry Antipov  <dmantipov@yandex.ru>
+
+	Avoid clang-specific warnings.
+	* buffer.c (init_buffer): Shut up -Wself-assign.
+	* process.c (server_accept_connection): Shut up -Wunsequenced.
+
 2014-09-16  Daniel Colascione  <dancol@dancol.org>
 	* fns.c (sxhash): For symbols, use address as hash code.

src/buffer.c

@@ -5286,7 +5286,7 @@ init_buffer (int initialized)
     }
 #else  /* not USE_MMAP_FOR_BUFFERS */
   /* Avoid compiler warnings.  */
-  initialized = initialized;
+  (void) initialized;
 #endif /* USE_MMAP_FOR_BUFFERS */
 
   Fset_buffer (Fget_buffer_create (build_local_string ("*scratch*")));

src/process.c

@@ -4060,8 +4060,8 @@ server_accept_connection (Lisp_Object server, int channel)
 	unsigned char *ip = (unsigned char *)&saddr.in.sin_addr.s_addr;
 
 	host = Fformat (5, ((Lisp_Object [])
-	  { build_local_string ("%d.%d.%d.%d"), make_number (*ip++),
-	    make_number (*ip++), make_number (*ip++), make_number (*ip++) }));
+	  { build_local_string ("%d.%d.%d.%d"), make_number (ip[0]),
+	    make_number (ip[1]), make_number (ip[2]), make_number (ip[3]) }));
 	service = make_number (ntohs (saddr.in.sin_port));
 	caller = Fformat (3, ((Lisp_Object [])
 	  { build_local_string (" <%s:%d>"), host, service }));