util: silence printf format compiler warnings (Python ssize_t)

On some platforms PY_FORMAT_SIZE_T seems to be ineffective, resulting in
compiler warnings about printf format data type mismatches (observed in
MXE builds).

Silence the warnings. Prefer the ssize_t data type instead which we know
the printf format of, reliably.

diff --git a/util.c b/util.c
index 1e914e3e44a1ee0ae2b0d735cd87f29345f66551..3a5e336a83e7be2db601e660a4ad6c3149b872e6 100644 (file)
--- a/util.c
+++ b/util.c
@@ -115,7 +115,7 @@ err:
 SRD_PRIV int py_attr_as_strlist(PyObject *py_obj, const char *attr, GSList **outstrlist)
 {
        PyObject *py_list;
-       Py_ssize_t i;
+       ssize_t idx;
        int ret;
        char *outstr;
        PyGILState_STATE gstate;
@@ -139,10 +139,10 @@ SRD_PRIV int py_attr_as_strlist(PyObject *py_obj, const char *attr, GSList **out
 
        *outstrlist = NULL;
 
-       for (i = 0; i < PyList_Size(py_list); i++) {
-               ret = py_listitem_as_str(py_list, i, &outstr);
+       for (idx = 0; idx < PyList_Size(py_list); idx++) {
+               ret = py_listitem_as_str(py_list, idx, &outstr);
                if (ret < 0) {
-                       srd_dbg("Couldn't get item %" PY_FORMAT_SIZE_T "d.", i);
+                       srd_dbg("Couldn't get item %zd.", idx);
                        goto err;
                }
                *outstrlist = g_slist_append(*outstrlist, outstr);
@@ -217,8 +217,9 @@ err:
 SRD_PRIV int py_listitem_as_str(PyObject *py_obj, Py_ssize_t idx,
                                char **outstr)
 {
-       PyObject *py_value;
        PyGILState_STATE gstate;
+       ssize_t item_idx;
+       PyObject *py_value;
 
        gstate = PyGILState_Ensure();
 
@@ -227,8 +228,9 @@ SRD_PRIV int py_listitem_as_str(PyObject *py_obj, Py_ssize_t idx,
                goto err;
        }
 
-       if (!(py_value = PyList_GetItem(py_obj, idx))) {
-               srd_dbg("Couldn't get list item %" PY_FORMAT_SIZE_T "d.", idx);
+       item_idx = idx;
+       if (!(py_value = PyList_GetItem(py_obj, item_idx))) {
+               srd_dbg("Couldn't get list item %zd.", item_idx);
                goto err;
        }