New submission from Duncan Macleod <macleo...@cardiff.ac.uk>:
The `sysconfig.get_platform()` function raises a `ValueError` if the `cflags` config value (e.g. the `CFLAGS` used at build time) includes the text `-arch` where that doesn't refer to the compiler flag of the same name. Consider the following example build: $ sw_vers ProductName: macOS ProductVersion: 11.6.3 BuildVersion: 20G415 $ curl -LO https://www.python.org/ftp/python/3.10.2/Python-3.10.2.tar.xz $ tar -xf Python-3.10.2.tar.xz $ cd Python-3.10.2 $ export CFLAGS="-Itest-arch/fake" # just something that includes -arch $ ./configure --prefix=$(pwd)/test-arch $ make -j Here the build fails with the following error: ./python.exe -E -S -m sysconfig --generate-posix-vars ;\ if test $? -ne 0 ; then \ echo "generate-posix-vars failed" ; \ rm -f ./pybuilddir.txt ; \ exit 1 ; \ fi Traceback (most recent call last): File "/Users/duncanmacleod/src/Python-3.10.2/Lib/runpy.py", line 196, in _run_module_as_main return _run_code(code, main_globals, None, File "/Users/duncanmacleod/src/Python-3.10.2/Lib/runpy.py", line 86, in _run_code exec(code, run_globals) File "/Users/duncanmacleod/src/Python-3.10.2/Lib/sysconfig.py", line 803, in <module> _main() File "/Users/duncanmacleod/src/Python-3.10.2/Lib/sysconfig.py", line 791, in _main _generate_posix_vars() File "/Users/duncanmacleod/src/Python-3.10.2/Lib/sysconfig.py", line 457, in _generate_posix_vars pybuilddir = f'build/lib.{get_platform()}-{_PY_VERSION_SHORT}' File "/Users/duncanmacleod/src/Python-3.10.2/Lib/sysconfig.py", line 744, in get_platform osname, release, machine = _osx_support.get_platform_osx( File "/Users/duncanmacleod/src/Python-3.10.2/Lib/_osx_support.py", line 556, in get_platform_osx raise ValueError( ValueError: Don't know machine value for archs=() generate-posix-vars failed Sorry if this is a duplicate of an existing issue. ---------- components: Library (Lib) messages: 412900 nosy: duncanmmacleod priority: normal severity: normal status: open title: sysconfig.get_platform() raises ValueError on macOS if '-arch' is present in CFLAGS but doesn't refer to the '-arch' compiler flag type: crash versions: Python 3.10 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue46691> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
