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GeezerVison is showing github.com — Check compatibility with macOS deployment target during JIT builds · Issue #134291 · python/cpython

Check compatibility with macOS deployment target during JIT builds #134291

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Check compatibility with macOS deployment target during JIT builds#134291
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zaniebbrandtbucher
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OS-macbuildThe build process and cross-buildThe build process and cross-buildtopic-JITtype-featureA feature request or enhancementA feature request or enhancement

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@zanieb
zanieb
opened on May 19, 2025
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As with #100384, we should ensure that symbols use is guarded or the interpreter will crash at runtime on older macOS platforms.

There are a couple violations for a target of 10.15 (which we agreed on in #128155):

cpython-3.14> Python/jit.c:530:5: error: 'pthread_jit_write_protect_np' is only available on macOS 11.0 or newer [-Werror,-Wunguarded-availability-new]
cpython-3.14>   530 |     pthread_jit_write_protect_np(0);
cpython-3.14>       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
cpython-3.14> /Applications/Xcode_15.2.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.2.sdk/usr/include/pthread.h:588:6: note: 'pthread_jit_write_protect_np' has been marked as being introduced in macOS 11.0 here, but the deployment target is macOS 10.15.0
cpython-3.14>   588 | void pthread_jit_write_protect_np(int enabled);
cpython-3.14>       |      ^
cpython-3.14> Python/jit.c:530:5: note: enclose 'pthread_jit_write_protect_np' in a __builtin_available check to silence this warning
cpython-3.14>   530 |     pthread_jit_write_protect_np(0);
cpython-3.14>       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
cpython-3.14> Python/jit.c:570:5: error: 'pthread_jit_write_protect_np' is only available on macOS 11.0 or newer [-Werror,-Wunguarded-availability-new]
cpython-3.14>   570 |     pthread_jit_write_protect_np(1);
cpython-3.14>       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
cpython-3.14> /Applications/Xcode_15.2.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.2.sdk/usr/include/pthread.h:588:6: note: 'pthread_jit_write_protect_np' has been marked as being introduced in macOS 11.0 here, but the deployment target is macOS 10.15.0
cpython-3.14>   588 | void pthread_jit_write_protect_np(int enabled);
cpython-3.14>       |      ^
cpython-3.14> Python/jit.c:570:5: note: enclose 'pthread_jit_write_protect_np' in a __builtin_available check to silence this warning
cpython-3.14>   570 |     pthread_jit_write_protect_np(1);
cpython-3.14>       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
cpython-3.14> 2 errors generated.

Linked PRs

  • gh-134291: Add unguarded-availability check to JIT builds #134292
  • GH-134291: Support older macOS deployment targets for JIT builds #137211
  • [3.14] GH-134291: Support older macOS deployment targets for JIT builds (GH-137211) #137701

Activity

  1. zanieb
    assigned
    zanieb
    and
    brandtbucher
    on May 19, 2025
  2. zanieb
    added
    buildThe build process and cross-buildThe build process and cross-build
    topic-JIT
    on May 19, 2025
  3. zanieb
    added a commit that references this issue on May 19, 2025

    pythongh-134291: Add `unguarded-availability` check to JIT builds

    be8d888
  4. picnixz
    added
    OS-mac
    type-featureA feature request or enhancementA feature request or enhancement
    on May 19, 2025
  5. brandtbucher
    added a commit that references this issue on Jul 30, 2025

    GH-134291: Support older macOS deployment targets for JIT builds (GH-…

    d591b5e
  6. hugovk
    added a commit that references this issue on Aug 13, 2025

    [3.14] GH-134291: Support older macOS deployment targets for JIT buil…

    2392232
  7. Agent-Hellboy
    added a commit that references this issue on Aug 19, 2025

    pythonGH-134291: Support older macOS deployment targets for JIT builds (

    3dd7f0d

  8. hugovk commented on Aug 21, 2025

    @hugovk
    hugovk
    on Aug 21, 2025
    Member
    More actions

    @zanieb Anything still to do here, or can we close this?

  9. kumaraditya303
    added a commit that references this issue on Sep 9, 2025

    [3.14] pythonGH-134291: Support older macOS deployment targets for JI…

    3210ebf
  10. hugovk
    closed this as completedon Oct 8, 2025
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