bazel build --compilation_mode=debug (#6457)

src/shims/windows/python-nondebug.h

@@ -0,0 +1,18 @@
+// This is to avoid depending on the debug version of the Python library on Windows,
+// which requires separate library files and linking.
+#if defined(_WIN32) && defined(_DEBUG)
+#ifdef Py_PYTHON_H
+#error Python.h should not have been included at this point.
+#endif
+// Ensure some headers included before messing with macro
+#include <io.h>
+#include <stdio.h>
+#ifdef Py_CONFIG_H
+#error pyconfig.h should not have been included at this point.
+#endif
+#include "patchlevel.h"
+#pragma push_macro("_DEBUG")
+#undef _DEBUG
+#include "pyconfig.h"
+#pragma pop_macro("_DEBUG")
+#endif