From 11a5fb92d552acd2e944744ae1af5700d5bccee2 Mon Sep 17 00:00:00 2001
From: Sam James <sam@gentoo.org>
Date: Tue, 27 May 2025 03:43:54 +0100
Subject: [PATCH] gh-134768: Fix definition of `mt_continue_should_break()`

In 121ed71f4e395948d313249b2ad33e1e21581f8a, mt_continue_should_break
was changed to be guarded by `Py_DEBUG`, but it's used in `compress_mt_continue_lock_held`
with just `assert`, so it needs to be available when `NDEBUG` is undefined
too.

`Py_DEBUG` implies `NDEBUG` is undefined, so we can check just that.

Fixes: 121ed71f4e395948d313249b2ad33e1e21581f8a
---
 Modules/_zstd/compressor.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Modules/_zstd/compressor.c b/Modules/_zstd/compressor.c
index 7f0558909b4422..6e61380a2db18a 100644
--- a/Modules/_zstd/compressor.c
+++ b/Modules/_zstd/compressor.c
@@ -489,7 +489,7 @@ compress_lock_held(ZstdCompressor *self, Py_buffer *data,
     return NULL;
 }
 
-#ifdef Py_DEBUG
+#ifndef NDEBUG
 static inline int
 mt_continue_should_break(ZSTD_inBuffer *in, ZSTD_outBuffer *out)
 {