New submission from Russell Keith-Magee <russ...@keith-magee.com>:
BPO-41486 added _BlocksOutputBuffer for the bz2, lzma and zlib module.
Part of this patch included a new header file, pycore_blocks_output_buffer.h,
which defines a BUFFER_BLOCK_SIZE constant.
If two or more of the bz2, lzma or zlib modules are compiled as statically
linked modules (i.e., added to Lib/Setup.local), this results in a duplicate
symbol error when the Python executable is linked:
```
duplicate symbol '_BUFFER_BLOCK_SIZE' in:
libpython3.10.a(_bz2module.o)
libpython3.10.a(_lzmamodule.o)
duplicate symbol '_BUFFER_BLOCK_SIZE' in:
libpython3.10.a(_bz2module.o)
libpython3.10.a(zlibmodule.o)
```
----------
components: Extension Modules
messages: 396114
nosy: freakboy3742
priority: normal
severity: normal
status: open
title: Duplicate symbol _BUFFER_BLOCK_SIZE when statically linking multiple
modules
type: compile error
versions: Python 3.10, Python 3.11
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue44458>
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