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bpo-35081: Internal headers require Py_BUILD_CORE (GH-10363)

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* All internal header files now require Py_BUILD_CORE or
  Py_BUILD_CORE_BUILTIN to be defined.
* _json.c is now compiled with Py_BUILD_CORE_BUILTIN to access
  pycore_accu.h header.
* Add an example to Modules/Setup to show how to build _json
  as a built-in module; it requires non trivial compiler options.
This commit is contained in:
Victor Stinner 2018-11-09 13:03:37 +01:00 • committed by GitHub
parent 0a18e0510a
commit 130893debf
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16 changed files with 48 additions and 13 deletions
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Include/internal/pycore_accu.h
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@ -9,6 +9,10 @@ extern "C" {
*** Its definition may be changed or removed at any moment.
***/
#if !defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_BUILTIN)
# error "this header requires Py_BUILD_CORE or Py_BUILD_CORE_BUILTIN define"
#endif
/*
* A two-level accumulator of unicode objects that avoids both the overhead
* of keeping a huge number of small separate objects, and the quadratic