55 lines
2.3 KiB
Diff
55 lines
2.3 KiB
Diff
From 9f58bc7a648990d89258191c39651c075ce1c1c7 Mon Sep 17 00:00:00 2001
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From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Date: Wed, 23 Dec 2015 11:33:14 +0100
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Subject: [PATCH] Adjust library/header paths for cross-compilation
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When cross-compiling third-party extensions, the get_python_inc() or
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get_python_lib() can be called, to return the path to headers or
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libraries. However, they use the sys.prefix of the host Python, which
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returns incorrect paths when cross-compiling (paths pointing to host
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headers and libraries).
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In order to fix this, we introduce the _python_sysroot, _python_prefix
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and _python_exec_prefix variables, that allow to override these
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values, and get correct header/library paths when cross-compiling
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third-party Python modules.
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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[ Adam Duskett: ported to Python 3.10.0 ]
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Signed-off-by: Adam Duskett <aduskett@gmail.com>
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[ Adam Duskett: ported to Python 3.12.1 ]
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Signed-off-by: Adam Duskett <adam.duskett@amarulasolutions.com>
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---
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Lib/sysconfig.py | 15 +++++++++++----
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1 file changed, 11 insertions(+), 4 deletions(-)
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diff --git a/Lib/sysconfig.py b/Lib/sysconfig.py
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index 122d441bd19..a4922c429a3 100644
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--- a/Lib/sysconfig.py
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+++ b/Lib/sysconfig.py
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@@ -169,10 +169,17 @@ def joinuser(*args):
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_PY_VERSION = sys.version.split()[0]
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_PY_VERSION_SHORT = f'{sys.version_info[0]}.{sys.version_info[1]}'
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_PY_VERSION_SHORT_NO_DOT = f'{sys.version_info[0]}{sys.version_info[1]}'
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-_PREFIX = os.path.normpath(sys.prefix)
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-_BASE_PREFIX = os.path.normpath(sys.base_prefix)
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-_EXEC_PREFIX = os.path.normpath(sys.exec_prefix)
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-_BASE_EXEC_PREFIX = os.path.normpath(sys.base_exec_prefix)
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+if "_python_sysroot" in os.environ:
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+ _sysroot=os.environ.get('_python_sysroot')
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+ _PREFIX = os.path.normpath(_sysroot + os.environ.get('_python_prefix'))
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+ _EXEC_PREFIX = os.path.normpath(_sysroot + os.environ.get('_python_exec_prefix'))
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+ _BASE_PREFIX = _PREFIX
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+ _BASE_EXEC_PREFIX = _EXEC_PREFIX
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+else:
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+ _PREFIX = os.path.normpath(sys.prefix)
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+ _EXEC_PREFIX = os.path.normpath(sys.exec_prefix)
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+ _BASE_PREFIX = os.path.normpath(sys.base_prefix)
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+ _BASE_EXEC_PREFIX = os.path.normpath(sys.base_exec_prefix)
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# Mutex guarding initialization of _CONFIG_VARS.
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_CONFIG_VARS_LOCK = threading.RLock()
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_CONFIG_VARS = None
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--
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2.43.0
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