pythongh-120593: Check -Wcast-qual flag in test_cext (python#121081)

vstinner · noahbkim · commit 716267320819 · 2024-07-11T12:21:59.000-04:00
Check the usage of the 'const' qualifier in the Python C API in
test_cext.
diff --git a/Lib/test/test_cext/setup.py b/Lib/test/test_cext/setup.py
@@ -17,6 +17,9 @@
         # 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-120593: Check the 'const' qualifier
+        '-Wcast-qual',
     ]
     if not support.Py_GIL_DISABLED:
         CFLAGS.append(
