add local _PyLong_AsInt() needed for python older then 3.3.2

2 files changed, 20 insertions, 0 deletions

diff --git a/source/blender/python/generic/py_capi_utils.c b/source/blender/python/generic/py_capi_utils.c
index 63f66afd8a8..8e90d484a9d 100644
--- a/source/blender/python/generic/py_capi_utils.c
+++ b/source/blender/python/generic/py_capi_utils.c
@@ -887,3 +887,19 @@ PyObject *PyC_FlagSet_FromBitfield(PyC_FlagSet *items, int flag)
 
 	return ret;
 }
+
+/* compat only */
+#if PY_VERSION_HEX <  0x03030200
+int
+_PyLong_AsInt(PyObject *obj)
+{
+	int overflow;
+	long result = PyLong_AsLongAndOverflow(obj, &overflow);
+	if (overflow || result > INT_MAX || result < INT_MIN) {
+		PyErr_SetString(PyExc_OverflowError,
+		                "Python int too large to convert to C int");
+		return -1;
+	}
+	return (int)result;
+}
+#endif
diff --git a/source/blender/python/generic/py_capi_utils.h b/source/blender/python/generic/py_capi_utils.h
index 8928642bc3e..c6792ddfc79 100644
--- a/source/blender/python/generic/py_capi_utils.h
+++ b/source/blender/python/generic/py_capi_utils.h
@@ -72,4 +72,8 @@ int       PyC_FlagSet_ValueFromID(PyC_FlagSet *item, const char *identifier, int
 int       PyC_FlagSet_ToBitfield(PyC_FlagSet *items, PyObject *value, int *r_value, const char *error_prefix);
 PyObject *PyC_FlagSet_FromBitfield(PyC_FlagSet *items, int flag);
 
+#if PY_VERSION_HEX <  0x03030200
+int _PyLong_AsInt(PyObject *obj);
+#endif
+
 #endif  /* __PY_CAPI_UTILS_H__ */