From 61af65485f1dade4aa08d0cf2b24082aeda24c51 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 Signed-off-by: Adam Duskett Refresh for 3.10.0 --- Lib/distutils/command/build_ext.py | 5 ++++- Lib/sysconfig.py | 15 +++++++++++---- 2 files changed, 15 insertions(+), 5 deletions(-) diff --git a/Lib/distutils/command/build_ext.py b/Lib/distutils/command/build_ext.py index 1a9bd12..3cf7d67 100644 --- a/Lib/distutils/command/build_ext.py +++ b/Lib/distutils/command/build_ext.py @@ -234,7 +234,10 @@ class build_ext(Command): if (sysconfig.get_config_var('Py_ENABLE_SHARED')): if not sysconfig.python_build: # building third party extensions - self.library_dirs.append(sysconfig.get_config_var('LIBDIR')) + libdir = sysconfig.get_config_var('LIBDIR') + if "_python_sysroot" in os.environ: + libdir = os.environ.get("_python_sysroot") + libdir + self.library_dirs.append(libdir) else: # building python standard extensions self.library_dirs.append('.') diff --git a/Lib/sysconfig.py b/Lib/sysconfig.py index 95b48f6..9fb1956 100644 --- a/Lib/sysconfig.py +++ b/Lib/sysconfig.py @@ -123,10 +123,17 @@ _SCHEME_KEYS = ('stdlib', 'platstdlib', 'purelib', 'platlib', 'include', _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) _CONFIG_VARS = None _USER_BASE = None -- 2.30.2