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-rw-r--r--Lib/test/test_cext/__init__.py2
-rw-r--r--Lib/test/test_cext/setup.py4
2 files changed, 6 insertions, 0 deletions
diff --git a/Lib/test/test_cext/__init__.py b/Lib/test/test_cext/__init__.py
index 730b91a..7792949 100644
--- a/Lib/test/test_cext/__init__.py
+++ b/Lib/test/test_cext/__init__.py
@@ -1,5 +1,7 @@
# gh-116869: Build a basic C test extension to check that the Python C API
# does not emit C compiler warnings.
+#
+# Python C API must build with -Werror=declaration-after-statement.
import os.path
import shutil
diff --git a/Lib/test/test_cext/setup.py b/Lib/test/test_cext/setup.py
index dd57a5f..aed7e6d 100644
--- a/Lib/test/test_cext/setup.py
+++ b/Lib/test/test_cext/setup.py
@@ -16,6 +16,10 @@ if not support.MS_WINDOWS:
# The purpose of test_cext extension is to check that building a C
# extension using the Python C API does not emit C compiler warnings.
'-Werror',
+
+ # gh-116869: The Python C API must build with
+ # -Werror=declaration-after-statement.
+ '-Werror=declaration-after-statement',
]
else:
# Don't pass any compiler flag to MSVC