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bpo-46640: Py_NAN now uses the C99 NAN constant (GH-31134)

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Building Python now requires a C99 <math.h> header file providing a
NAN constant, or the __builtin_nan() built-in function. If a platform
does not support Not-a-Number (NaN), the Py_NO_NAN macro can be
defined in the pyconfig.h file.
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Victor Stinner 2022-02-06 13:13:04 +01:00 • committed by GitHub
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@ -604,6 +604,12 @@ Build Changes
``isinf()``, ``isnan()``, ``round()``.
(Contributed by Victor Stinner in :issue:`45440`.)
* Building Python now requires a C99 ``<math.h>`` header file providing
a ``NAN`` constant, or the ``__builtin_nan()`` built-in function. If a
platform does not support Not-a-Number (NaN), the ``Py_NO_NAN`` macro can be
defined in the ``pyconfig.h`` file.
(Contributed by Victor Stinner in :issue:`46640`.)
* Freelists for object structs can now be disabled. A new :program:`configure`
option :option:`!--without-freelists` can be used to disable all freelists
except empty tuple singleton.