PyThread_allocate_lock stub

Author: timfel

graalpython/com.oracle.graal.python.cext/include/Python.h

@@ -114,6 +114,7 @@
 #include "frameobject.h"
 #include "traceback.h"
 #include "classobject.h"
+#include "pythread.h"
 
 #define PY_TRUFFLE_CEXT ((void*)polyglot_import("python_cext"))
 #define PY_BUILTIN ((void*)polyglot_import("python_builtins"))

graalpython/com.oracle.graal.python.cext/src/ceval.c

@@ -54,3 +54,7 @@ PyThreadState* PyEval_SaveThread() {
 
 void PyEval_RestoreThread(PyThreadState *ptr) {
 }
+
+void* PyThread_allocate_lock() {
+    return NULL;
+}