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