cpython/Misc/NEWS.d/next/Build
Petr Viktorin 563bd5a4dc
bpo-41282: Fix broken make install (GH-26329)
A previous commit broke a check in sysconfig when building cpython itself.
This caused builds of the standard library modules to search a wrong
location (the installed location rather than the source directory) for
header files with the net effect that a ``make install``
incorrectly caused all extension modules to be rebuilt again and
with incorrect include file paths.

When building Python, we need two distinct "include" directories:
- source .h files
- install target for .h files

Note that this doesn't matter except when building Python from source.

Historically:
- source .h files were in the distutils scheme under 'include'
- the install directory was in the distutils.command.install scheme
    under 'headers'

GH-24549 merged these; sysconfig is now the single source of truth and
distutils is derived from it.

This commit introduces a "secret" scheme path, 'headers', which contains
the install target. It is only present when building Python.
The distutils code uses it if present, and falls back to 'include'.

Co-authored-by: Ned Deily <nad@python.org>
2021-05-24 18:48:44 -04:00
..
2021-05-24-03-31-17.bpo-41282.L8nP44.rst bpo-41282: Fix broken make install (GH-26329) 2021-05-24 18:48:44 -04:00
README.rst Link to blurb on PyPI in the NEWS.d READMEs. (#3323) 2017-09-05 10:38:05 -07:00

Put news entry `blurb`_ files for the *Build* section in this directory.

.. _blurb: https://pypi.org/project/blurb/