[3.10] bpo-41282: Fix broken make install (GH-26329)
#26336
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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'
pythonGH-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>
(cherry picked from commit 563bd5a)
Co-authored-by: Petr Viktorin <encukou@gmail.com>
|
@encukou and @ned-deily: Status check is done, and it's a success ✅ . |
|
@encukou and @ned-deily: Status check is done, and it's a success ✅ . |
ned-deily
approved these changes
May 24, 2021
|
@encukou and @ned-deily: Status check is done, and it's a success ✅ . |
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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 installincorrectly caused all extension modules to be rebuilt again and
with incorrect include file paths.
When building Python, we need two distinct "include" directories:
Note that this doesn't matter except when building Python from source.
Historically:
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
(cherry picked from commit 563bd5a)
Co-authored-by: Petr Viktorin encukou@gmail.com
https://bugs.python.org/issue41282
Automerge-Triggered-By: GH:ned-deily