Fix ctypes.set_errno for gcc.

diff --git a/Modules/_ctypes/callproc.c b/Modules/_ctypes/callproc.c
index 70ca73f10a03e3d2b485754702364587376d63b0..aa297af7b3e3e7b8f28b2aa2a8b971a112092ddc 100644 (file)
--- a/Modules/_ctypes/callproc.c
+++ b/Modules/_ctypes/callproc.c
@@ -197,10 +197,12 @@ get_errno(PyObject *self, PyObject *args)
 static PyObject *
 set_errno(PyObject *self, PyObject *args)
 {
-       int new_errno;
+       int new_errno, prev_errno;
        if (!PyArg_ParseTuple(args, "i", &new_errno))
                return NULL;
-       return PyInt_FromLong(_save_errno(new_errno));
+       prev_errno = ctypes_errno;
+       ctypes_errno = new_errno;
+       return PyInt_FromLong(prev_errno);
 }
 #else