kumquat-buildroot/package/python/0007-Adjust-library-header-paths-for-cross-compilation.patch
Thomas Petazzoni 6520762932 python: move to Git formatted patches
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>
2017-03-09 22:35:21 +01:00

65 lines
2.8 KiB
Diff

From f3e0a677c4736f95338825a022a884f8dc7a5c14 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Tue, 7 Mar 2017 22:22:19 +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.
The _python_sysroot variable is also used to prefix the LIBDIR value
taken from the sysconfigdata module.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
Lib/distutils/command/build_ext.py | 5 ++++-
Lib/distutils/sysconfig.py | 9 +++++++--
2 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/Lib/distutils/command/build_ext.py b/Lib/distutils/command/build_ext.py
index 2c68be3..375b08c 100644
--- a/Lib/distutils/command/build_ext.py
+++ b/Lib/distutils/command/build_ext.py
@@ -240,7 +240,10 @@ 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/distutils/sysconfig.py b/Lib/distutils/sysconfig.py
index d72b6e5..72151df 100644
--- a/Lib/distutils/sysconfig.py
+++ b/Lib/distutils/sysconfig.py
@@ -19,8 +19,13 @@ import sys
from distutils.errors import DistutilsPlatformError
# These are needed in a couple of spots, so just compute them once.
-PREFIX = os.path.normpath(sys.prefix)
-EXEC_PREFIX = os.path.normpath(sys.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'))
+else:
+ PREFIX = os.path.normpath(sys.prefix)
+ EXEC_PREFIX = os.path.normpath(sys.exec_prefix)
# Path to the base directory of the project. On Windows the binary may
# live in project/PCBuild9. If we're dealing with an x64 Windows build,
--
2.7.4