![Thomas Petazzoni](/assets/img/avatar_default.png)
Now that the cpython project has a nice Github repository, with tags, it's much nicer to handle the stack of Python patches with Git. The python3 package patches had already been converted, but not the python package patches. Therefore, this commit does the move. There is no functional change, only reformatting of the patches. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Reviewed-by: Yegor Yefremov <yegorslists@googlemail.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
65 lines
2.8 KiB
Diff
65 lines
2.8 KiB
Diff
From f3e0a677c4736f95338825a022a884f8dc7a5c14 Mon Sep 17 00:00:00 2001
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From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Date: Tue, 7 Mar 2017 22:22:19 +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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The _python_sysroot variable is also used to prefix the LIBDIR value
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taken from the sysconfigdata module.
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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---
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Lib/distutils/command/build_ext.py | 5 ++++-
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Lib/distutils/sysconfig.py | 9 +++++++--
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2 files changed, 11 insertions(+), 3 deletions(-)
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diff --git a/Lib/distutils/command/build_ext.py b/Lib/distutils/command/build_ext.py
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index 2c68be3..375b08c 100644
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--- a/Lib/distutils/command/build_ext.py
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+++ b/Lib/distutils/command/build_ext.py
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@@ -240,7 +240,10 @@ class build_ext (Command):
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if (sysconfig.get_config_var('Py_ENABLE_SHARED')):
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if not sysconfig.python_build:
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# building third party extensions
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- self.library_dirs.append(sysconfig.get_config_var('LIBDIR'))
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+ libdir = sysconfig.get_config_var('LIBDIR')
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+ if "_python_sysroot" in os.environ:
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+ libdir = os.environ.get("_python_sysroot") + libdir
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+ self.library_dirs.append(libdir)
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else:
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# building python standard extensions
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self.library_dirs.append('.')
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diff --git a/Lib/distutils/sysconfig.py b/Lib/distutils/sysconfig.py
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index d72b6e5..72151df 100644
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--- a/Lib/distutils/sysconfig.py
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+++ b/Lib/distutils/sysconfig.py
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@@ -19,8 +19,13 @@ import sys
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from distutils.errors import DistutilsPlatformError
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# These are needed in a couple of spots, so just compute them once.
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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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+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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+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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# Path to the base directory of the project. On Windows the binary may
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# live in project/PCBuild9. If we're dealing with an x64 Windows build,
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--
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2.7.4
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