Index: Modules/posixmodule.c
===================================================================
--- Modules/posixmodule.c	(révision 72287)
+++ Modules/posixmodule.c	(copie de travail)
@@ -5602,8 +5602,8 @@
 	uid_t uid;
 	if (!PyArg_ParseTuple(args, "l:setuid", &uid_arg))
 		return NULL;
-	uid = uid_arg;
-	if (uid != uid_arg) {
+	uid = (uid_t)uid_arg;
+	if ((long)uid != uid_arg) {
 		PyErr_SetString(PyExc_OverflowError, "user id too big");
 		return NULL;
 	}
@@ -5627,8 +5627,8 @@
 	uid_t euid;
 	if (!PyArg_ParseTuple(args, "l", &euid_arg))
 		return NULL;
-	euid = euid_arg;
-	if (euid != euid_arg) {
+	euid = (uid_t)euid_arg;
+	if ((long)euid != euid_arg) {
 		PyErr_SetString(PyExc_OverflowError, "user id too big");
 		return NULL;
 	}
@@ -5653,8 +5653,8 @@
 	gid_t egid;
 	if (!PyArg_ParseTuple(args, "l", &egid_arg))
 		return NULL;
-	egid = egid_arg;
-	if (egid != egid_arg) {
+	egid = (gid_t)egid_arg;
+	if ((long)egid != egid_arg) {
 		PyErr_SetString(PyExc_OverflowError, "group id too big");
 		return NULL;
 	}
@@ -5679,9 +5679,9 @@
 	uid_t ruid, euid;
 	if (!PyArg_ParseTuple(args, "ll", &ruid_arg, &euid_arg))
 		return NULL;
-	ruid = ruid_arg;
-	euid = euid_arg;
-	if (euid != euid_arg || ruid != ruid_arg) {
+	ruid = (uid_t)ruid_arg;
+	euid = (uid_t)euid_arg;
+	if ((long)euid != euid_arg || (long)ruid != ruid_arg) {
 		PyErr_SetString(PyExc_OverflowError, "user id too big");
 		return NULL;
 	}
@@ -5706,9 +5706,9 @@
 	gid_t rgid, egid;
 	if (!PyArg_ParseTuple(args, "ll", &rgid_arg, &egid_arg))
 		return NULL;
-	rgid = rgid_arg;
-	egid = egid_arg;
-	if (egid != egid_arg || rgid != rgid_arg) {
+	rgid = (gid_t)rgid_arg;
+	egid = (gid_t)egid_arg;
+	if ((long)egid != egid_arg || (long)rgid != rgid_arg) {
 		PyErr_SetString(PyExc_OverflowError, "group id too big");
 		return NULL;
 	}
@@ -5734,7 +5734,7 @@
 	if (!PyArg_ParseTuple(args, "l:setgid", &gid_arg))
 		return NULL;
 	gid = gid_arg;
-	if (gid != gid_arg) {
+	if ((long)gid != gid_arg) {
 		PyErr_SetString(PyExc_OverflowError, "group id too big");
 		return NULL;
 	}
@@ -5784,9 +5784,9 @@
 					Py_DECREF(elem);
 					return NULL;
 				}
-				grouplist[i] = x;
+				grouplist[i] = (gid_t)x;
 				/* read back to see if it fits in gid_t */
-				if (grouplist[i] != x) {
+				if ((unsigned long)grouplist[i] != x) {
 					PyErr_SetString(PyExc_TypeError,
 							"group id too big");
 					Py_DECREF(elem);
@@ -5795,8 +5795,8 @@
 			}
 		} else {
 			long x  = PyInt_AsLong(elem);
-			grouplist[i] = x;
-			if (grouplist[i] != x) {
+			grouplist[i] = (gid_t)x;
+			if ((long)grouplist[i] != x) {
 				PyErr_SetString(PyExc_TypeError,
 						"group id too big");
 				Py_DECREF(elem);