them; they have to be passed to make.
This file describes some special Python build types enabled via
compile-time preprocessor defines.
-It is best to define these options in the EXTRA_CFLAGS environment variable;
-``EXTRA_CFLAGS="-DPy_REF_DEBUG" ./configure``.
+It is best to define these options in the EXTRA_CFLAGS make variable;
+``make EXTRA_CFLAGS="-DPy_REF_DEBUG"``.
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Py_REF_DEBUG introduced in 1.4