SF patch  #475657 (Dietmar Schwertberger)

RISCOS/Makefile:
include structseq and weakrefobject;
changes to keep command line length below 2048

RISCOS/Modules/riscosmodule.c:
typos from the stat structseq patch

Include/pyport.h:
don't re-#define __attribute__(__x) on RISC OS as it is already defined in c library
diff --git a/RISCOS/Modules/riscosmodule.c b/RISCOS/Modules/riscosmodule.c
index 9d3510c..c441017 100644
--- a/RISCOS/Modules/riscosmodule.c
+++ b/RISCOS/Modules/riscosmodule.c
@@ -7,6 +7,7 @@
 #include "unixstuff.h"
 
 #include "Python.h"
+#include "structseq.h"
 
 #include <errno.h>
 
@@ -142,7 +143,7 @@
         { "st_ctime", "time of last change" },
 	{ "st_ftype", "file type" },
 	{ "st_attrs", "attributes" },
-	{ "st_obtype", "object type" }
+	{ "st_obtype", "object type" },
 	{ 0 }
 };
 
@@ -194,7 +195,7 @@
 	PyStructSequence_SET_ITEM(v, 11, 
 				  PyInt_FromLong((long) at)); /*attributes*/
 	PyStructSequence_SET_ITEM(v, 12, 
-				  PyInt_FromLong((long) ot)); /*object type*/
+				  PyInt_FromLong((long) ob)); /*object type*/
 
         if (PyErr_Occurred()) {
                 Py_DECREF(v);