Merged revisions 75007 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r75007 | antoine.pitrou | 2009-09-21 23:17:48 +0200 (lun., 21 sept. 2009) | 7 lines

  Issue #6236, #6348: Fix various failures in the io module under AIX
  and other platforms, when using a non-gcc compiler. Patch by egreen.

  In addition, I made explicit the signedness of all bitfields in the
  IO library.
........

Misc/NEWS

@@ -82,6 +82,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #6236, #6348: Fix various failures in the `io` module under AIX
+  and other platforms, when using a non-gcc compiler. Patch by egreen.
+
 - Issue #6851: Fix urllib.urlopen crash on secondairy threads on OSX 10.6
 
 - Issue #6947: Fix distutils test on windows. Patch by Hirokazu Yamamoto.

Modules/_fileio.c

@@ -30,10 +30,10 @@
 typedef struct {
 	PyObject_HEAD
 	int fd;
-	unsigned readable : 1;
-	unsigned writable : 1;
-	int seekable : 2; /* -1 means unknown */
-	int closefd : 1;
+	unsigned int readable : 1;
+	unsigned int writable : 1;
+	signed int seekable : 2; /* -1 means unknown */
+	signed int closefd : 1;
 	PyObject *weakreflist;
 } PyFileIOObject;