diff options
Diffstat (limited to 'package/python3/009-distutils-use-python-sysroot.patch')
| -rw-r--r-- | package/python3/009-distutils-use-python-sysroot.patch | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/package/python3/009-distutils-use-python-sysroot.patch b/package/python3/009-distutils-use-python-sysroot.patch new file mode 100644 index 0000000000..06f203932b --- /dev/null +++ b/package/python3/009-distutils-use-python-sysroot.patch @@ -0,0 +1,57 @@ +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> + +Index: b/Lib/distutils/sysconfig.py +=================================================================== +--- a/Lib/distutils/sysconfig.py ++++ b/Lib/distutils/sysconfig.py +@@ -16,10 +16,17 @@ + from .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) +-BASE_PREFIX = os.path.normpath(sys.base_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) + + # 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, +Index: b/Lib/distutils/command/build_ext.py +=================================================================== +--- a/Lib/distutils/command/build_ext.py ++++ b/Lib/distutils/command/build_ext.py +@@ -239,7 +239,10 @@ + 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('.') |
