| From e359a7a3c4f9e70360a068bef19c95938fdacede Mon Sep 17 00:00:00 2001 |
| From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> |
| 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 <thomas.petazzoni@free-electrons.com> |
| [adapt for setuptools, rename environment variable, use fixed lib path] |
| Signed-off-by: Jeffery To <jeffery.to@gmail.com> |
| --- |
| Lib/distutils/command/build_ext.py | 5 ++++- |
| Lib/sysconfig.py | 15 +++++++++++---- |
| 2 files changed, 15 insertions(+), 5 deletions(-) |
| |
| --- a/setuptools/_distutils/command/build_ext.py |
| +++ b/setuptools/_distutils/command/build_ext.py |
| @@ -238,7 +238,10 @@ 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 'STAGING_DIR' in os.environ: |
| + libdir = os.environ.get('STAGING_DIR') + '/usr/lib' |
| + self.library_dirs.append(libdir) |
| else: |
| # building python standard extensions |
| self.library_dirs.append('.') |