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bpo-45522: Allow to disable freelists on build time (GH-29056)

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Freelists for object structs can now be disabled. A new ``configure``
option ``--without-freelists`` can be used to disable all freelists
except empty tuple singleton. Internal Py*_MAXFREELIST macros can now
be defined as 0 without causing compiler warnings and segfaults.

Signed-off-by: Christian Heimes <christian@python.org>
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Christian Heimes 2021-10-21 16:12:20 +03:00 • committed by GitHub
parent 5a14f71fe8
commit 9942f42a93
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15 changed files with 218 additions and 35 deletions
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PC/pyconfig.h
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@ -463,6 +463,9 @@ Py_NO_ENABLE_SHARED to find out. Also support MS_NO_COREDLL for b/w compat */
/* Use Python's own small-block memory-allocator. */
#define WITH_PYMALLOC 1
/* Define if you want to compile in object freelists optimization */
#define WITH_FREELISTS 1
/* Define if you have clock. */
/* #define HAVE_CLOCK */