+# Some versions of SWIG (like 3.0.12) generate code where a parameter called
+# `swig_this` shadows a global of the same name. Later versions (like 4.0.1)
+# have renamed this global to `Swig_This_global`.
+#
+# Disable -Wshadow for that file.
+WARN_CFLAGS = -Wno-shadow
+
+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
+
+# For SWIG generated code
+WARN_CFLAGS += -Wno-missing-field-initializers
+