[lldb] Workaround omission of PyBUF_READ in the stable API (#152214)
PyMemoryView_FromMemory is part of stable ABI but the flag constants
such as PyBUF_READ are not. This was fixed in Python 3.11 [1], but still
requires this workaround when using older versions.
[1] https://github.com/python/cpython/issues/98680
GitOrigin-RevId: 7b8dea265e72c3037b6b1e54d5ab51b7e14f328b
diff --git a/source/Plugins/ScriptInterpreter/Python/lldb-python.h b/source/Plugins/ScriptInterpreter/Python/lldb-python.h
index 9b4a1dd..0c28179 100644
--- a/source/Plugins/ScriptInterpreter/Python/lldb-python.h
+++ b/source/Plugins/ScriptInterpreter/Python/lldb-python.h
@@ -60,6 +60,12 @@
// with a version of Python we don't support.
static_assert(PY_VERSION_HEX >= LLDB_MINIMUM_PYTHON_VERSION,
"LLDB requires at least Python 3.8");
+
+// PyMemoryView_FromMemory is part of stable ABI but the flag constants are not.
+// See https://github.com/python/cpython/issues/98680
+#ifndef PyBUF_READ
+#define PyBUF_READ 0x100
+#endif
#endif
#endif // LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_LLDB_PYTHON_H
