diff --git a/Objects/fileobject.c b/Objects/fileobject.c
index 51752abc..49517c5 100644
--- a/Objects/fileobject.c
+++ b/Objects/fileobject.c
@@ -190,10 +190,12 @@
 		(*f->f_close)(f->f_fp);
 		Py_END_ALLOW_THREADS
 	}
-	if (f->f_name != NULL)
+	if (f->f_name != NULL) {
 		Py_DECREF(f->f_name);
-	if (f->f_mode != NULL)
+	}
+	if (f->f_mode != NULL) {
 		Py_DECREF(f->f_mode);
+	}
 	free((char *)f);
 }
 
@@ -771,8 +773,9 @@
 			goto error;
 	}
   cleanup:
-	if (big_buffer)
+	if (big_buffer) {
 		Py_DECREF(big_buffer);
+	}
 	return list;
 }
 
diff --git a/Objects/funcobject.c b/Objects/funcobject.c
index be67259..d62dd08 100644
--- a/Objects/funcobject.c
+++ b/Objects/funcobject.c
@@ -110,8 +110,9 @@
 	}
 	if (defaults == Py_None)
 		defaults = NULL;
-	else if (PyTuple_Check(defaults))
+	else if (PyTuple_Check(defaults)) {
 		Py_XINCREF(defaults);
+	}
 	else {
 		PyErr_SetString(PyExc_SystemError, "non-tuple default args");
 		return -1;
diff --git a/Objects/longobject.c b/Objects/longobject.c
index d95e86c..becf1bc 100644
--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -497,7 +497,7 @@
 static PyLongObject *x_divrem
 	Py_PROTO((PyLongObject *, PyLongObject *, PyLongObject **));
 static PyObject *long_pos Py_PROTO((PyLongObject *));
-static long_divrem Py_PROTO((PyLongObject *, PyLongObject *,
+static int long_divrem Py_PROTO((PyLongObject *, PyLongObject *,
 	PyLongObject **, PyLongObject **));
 
 /* Long division with remainder, top-level routine */
diff --git a/Objects/stringobject.c b/Objects/stringobject.c
index 5928128..5e6a5a5 100644
--- a/Objects/stringobject.c
+++ b/Objects/stringobject.c
@@ -1016,14 +1016,16 @@
 				"not all arguments converted");
 		goto error;
 	}
-	if (args_owned)
+	if (args_owned) {
 		Py_DECREF(args);
+	}
 	_PyString_Resize(&result, reslen - rescnt);
 	return result;
  error:
 	Py_DECREF(result);
-	if (args_owned)
+	if (args_owned) {
 		Py_DECREF(args);
+	}
 	return NULL;
 }