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bpo-34814: don't link C extensions to libpython on Unix #9912

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4 changes: 4 additions & 0 deletions Doc/distutils/apiref.rst
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Expand Up @@ -276,6 +276,10 @@ the full reference.
| | simply skip the extension. | |
+------------------------+--------------------------------+---------------------------+

.. versionchanged:: 3.8

On Unix, C extensions are no longer linked to libpython.


.. class:: Distribution

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19 changes: 2 additions & 17 deletions Lib/distutils/command/build_ext.py
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Expand Up @@ -713,20 +713,5 @@ def get_libraries(self, ext):
# don't extend ext.libraries, it may be shared with other
# extensions, it is a reference to the original list
return ext.libraries + [pythonlib]
else:
return ext.libraries
elif sys.platform == 'darwin':
# Don't use the default code below
return ext.libraries
elif sys.platform[:3] == 'aix':
# Don't use the default code below
return ext.libraries
else:
from distutils import sysconfig
if sysconfig.get_config_var('Py_ENABLE_SHARED'):
pythonlib = 'python{}.{}{}'.format(
sys.hexversion >> 24, (sys.hexversion >> 16) & 0xff,
sysconfig.get_config_var('ABIFLAGS'))
return ext.libraries + [pythonlib]
else:
return ext.libraries

return ext.libraries
1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Build/2018-10-16-14-32-00.bpo-34814.qtWVS8.rst
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@@ -0,0 +1 @@
On Unix, C extensions are no longer linked to libpython.