gh-134768: Fix definition of `mt_continue_should_break()` (#134769)

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

diff --git a/Modules/_zstd/compressor.c b/Modules/_zstd/compressor.c
index 0fc3d7d36c68fee67f25552854b9c7f5fa137cf6..8ff2a3aadc1cd6b414ca8b0ef49b1ce8dd3a9b4e 100644 (file)
--- a/Modules/_zstd/compressor.c
+++ b/Modules/_zstd/compressor.c
@@ -512,7 +512,7 @@ error:
     return NULL;
 }
 
-#ifdef Py_DEBUG
+#ifndef NDEBUG
 static inline int
 mt_continue_should_break(ZSTD_inBuffer *in, ZSTD_outBuffer *out)
 {