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GeezerVison is showing github.com — libffi is linked into _ctypes_test.so but not actually used there · Issue #151422 · python/cpython

libffi is linked into _ctypes_test.so but not actually used there #151422

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libffi is linked into _ctypes_test.so but not actually used there#151422
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buildThe build process and cross-buildThe build process and cross-buildtestsTests in the Lib/test dirTests in the Lib/test dirtopic-ctypestype-refactorCode refactoring (with no changes in behavior)Code refactoring (with no changes in behavior)

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@hoodmane
hoodmane
opened on Jun 12, 2026
Issue body actions

A minor build nit: we link libffi into _ctypes_test.so unnecessarily. Due to a bug in the Emscripten dynamic loader this was preventing _ctypes_test.so from being loaded at all until Emscripten 4.0.19.

Linked PRs

  • gh-151422: Don't link libffi into _ctypes_test.so #151423
  • [3.15] gh-151422: Don't link libffi into _ctypes_test.so (GH-151423) #151516
  • [3.14] gh-151422: Don't link libffi into _ctypes_test.so (GH-151423) #151517

Activity

  1. aisk
    added
    type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error
    on Jun 13, 2026
  2. StanFromIreland
    added
    testsTests in the Lib/test dirTests in the Lib/test dir
    topic-ctypes
    buildThe build process and cross-buildThe build process and cross-build
    type-refactorCode refactoring (with no changes in behavior)Code refactoring (with no changes in behavior)
    and removed
    type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error
    on Jun 13, 2026
  3. hoodmane
    added a commit that references this issue on Jun 13, 2026

    pythongh-151422: Don't link libffi into _ctypes_test.so

    0011b4e
  4. freakboy3742
    added 3 commits that reference this issue on Jun 15, 2026

    gh-151422: Don't link libffi into _ctypes_test.so (#151423)

    8646385

    [3.14] gh-151422: Don't link libffi into _ctypes_test.so (GH-151423) (#…

    aa48555

    [3.15] gh-151422: Don't link libffi into _ctypes_test.so (GH-151423) (#…

    e2c7fa7
  5. freakboy3742
    closed this as completedon Jun 15, 2026
  6. philthompson10
    added a commit that references this issue on Jun 17, 2026

    pythongh-151422: Don't link libffi into _ctypes_test.so (python#151423)

    0140462
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    buildThe build process and cross-buildThe build process and cross-buildtestsTests in the Lib/test dirTests in the Lib/test dirtopic-ctypestype-refactorCode refactoring (with no changes in behavior)Code refactoring (with no changes in behavior)

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