freeze uses deprecated global Py_OptimizeFlag

[chris21k]

Bug report

Bug description:

freeze, i.e., makefreeze.py uses a dreprecated syntax using Py_OptimizeFlag++; instead of newer PyConfig syntax. The C compiler throws a warning for that.
As a bold guess to fix this, the in Python embedded C code may, e.g., be updated to somthing like the following:

// Py_OptimizeFlag++;
PyConfig config;
PyConfig_InitPythonConfig(&config);
config.optimization_level++;
Py_InitializeFromConfig(&config);
PyConfig_Clear(&config);

Thanks,
Chris

CPython versions tested on:

3.12

Operating systems tested on:

Linux

Linked PRs

• gh-116114: Replace deprecated Py_OptimizeFlag in makefreeze.py #125430