+WARN_CFLAGS += -Wno-null-dereference
+
+# Python 3.8 with SWIG 4.0.2 generates a deprecated warning for 'tp_print'
+# and in general there is not much we can do about deprecations in generated
+# code.
+WARN_CFLAGS += -Wno-deprecated-declarations
+
+# Python 3.11 + gcc 12.2.0 gave warnings of this kind in Python.h.
+WARN_CFLAGS += -Wno-redundant-decls
+