Index: Modules/posixmodule.c
===================================================================
--- Modules/posixmodule.c	(révision 67679)
+++ Modules/posixmodule.c	(copie de travail)
@@ -759,8 +759,8 @@
     __int64 st_ino;
     unsigned short st_mode;
     int st_nlink;
-    int st_uid;
-    int st_gid;
+    unsigned int st_uid;
+    unsigned int st_gid;
     int st_rdev;
     __int64 st_size;
     int st_atime;
@@ -1289,8 +1289,8 @@
         PyStructSequence_SET_ITEM(v, 2, PyInt_FromLong((long)st->st_dev));
 #endif
         PyStructSequence_SET_ITEM(v, 3, PyInt_FromLong((long)st->st_nlink));
-        PyStructSequence_SET_ITEM(v, 4, PyInt_FromLong((long)st->st_uid));
-        PyStructSequence_SET_ITEM(v, 5, PyInt_FromLong((long)st->st_gid));
+        PyStructSequence_SET_ITEM(v, 4, PyLong_FromUnsignedLong((unsigned long)st->st_uid));
+        PyStructSequence_SET_ITEM(v, 5, PyLong_FromUnsignedLong((unsigned long)st->st_gid));
 #ifdef HAVE_LARGEFILE_SUPPORT
         PyStructSequence_SET_ITEM(v, 6,
 				  PyLong_FromLongLong((PY_LONG_LONG)st->st_size));
@@ -1876,9 +1876,9 @@
 posix_chown(PyObject *self, PyObject *args)
 {
 	char *path = NULL;
-	long uid, gid;
+	unsigned int uid, gid;
 	int res;
-	if (!PyArg_ParseTuple(args, "etll:chown",
+	if (!PyArg_ParseTuple(args, "etII:chown",
 	                      Py_FileSystemDefaultEncoding, &path,
 	                      &uid, &gid))
 		return NULL;
@@ -1902,9 +1902,10 @@
 static PyObject *
 posix_fchown(PyObject *self, PyObject *args)
 {
-	int fd, uid, gid;
+	int fd;
+	unsigned int uid, gid;
 	int res;
-	if (!PyArg_ParseTuple(args, "iii:chown", &fd, &uid, &gid))
+	if (!PyArg_ParseTuple(args, "iII:chown", &fd, &uid, &gid))
 		return NULL;
 	Py_BEGIN_ALLOW_THREADS
 	res = fchown(fd, (uid_t) uid, (gid_t) gid);
@@ -1925,9 +1926,9 @@
 posix_lchown(PyObject *self, PyObject *args)
 {
 	char *path = NULL;
-	int uid, gid;
+	unsigned int uid, gid;
 	int res;
-	if (!PyArg_ParseTuple(args, "etii:lchown",
+	if (!PyArg_ParseTuple(args, "etII:lchown",
 	                      Py_FileSystemDefaultEncoding, &path,
 	                      &uid, &gid))
 		return NULL;