New submission from Christian Heimes <[email protected]>:
"sysconfig --generate-posix-vars" creates pybuilddir.txt and a
platform-specific sysconfig data file like
build/lib.linux-x86_64-3.11/_sysconfigdata__linux_x86_64-linux-gnu.py
When creating a cross-compile build of Python, sysconfig mixes data from the
cross compile build and the host build. It creates a pybuilddir.txt and
build/lib directory with correct values (e.g. wasm32-unknown-emscripten) but
sysconfigdata file with name values from the host Python PYTHON_FOR_BUILD (e.g
x86_64-unknown-linux-gnu).
$ cat pybuilddir.txt
build/lib.wasm32-unknown-emscripten-3.11
$ ls build/lib.wasm32-unknown-emscripten-3.11/_sysconfigdata*
build/lib.wasm32-unknown-emscripten-3.11/_sysconfigdata__linux_x86_64-linux-gnu.py
$ grep CC
build/lib.wasm32-unknown-emscripten-3.11/_sysconfigdata__linux_x86_64-linux-gnu.py
'CC': 'gcc',
$ grep ^CC Makefile
CC= emcc
----------
components: Build, Cross-Build
messages: 407141
nosy: Alex.Willmer, christian.heimes
priority: normal
severity: normal
status: open
title: sysconfig --generate-posix-vars creates wrong file when cross compiling
type: behavior
versions: Python 3.11
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Python tracker <[email protected]>
<https://bugs.python.org/issue45909>
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