pypa / pypa/setuptools

building python3 dynamic libraries as static on linux

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bug major
Dominant language
Python
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Description

Originally reported by: genomematt (Bitbucket: genomematt, GitHub: genomematt)


setuptools tries to use the non existent dl to determine whether to build a static or dynamic library resulting in always building static libraries.

Eventually results in an OSerror "cannot open shared object file: No such file or directory"

ugly work around for anyone who got here via googling. At top of setup.py add:

#!python

import sys, types
try:
  import dl
except ImportError:
  sys.modules['dl'] = types.ModuleType('dl')
  sys.modules['dl'].RTLD_NOW = None

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the Linux Python 3 build described in the issue and inspect how setuptools chooses between static and dynamic libraries. The issue mentions setup.py and the missing dl import; done means the build produces a usable shared library without the reported OS error.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
build-system
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
38/100

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