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Title: [3.15] gh-126877: Fix the configure check for Tcl/Tk with optimizing compilers (GH-153543) by miss-islington · Pull Request #153553 · python/cpython · GitHub

Open Graph Title: [3.15] gh-126877: Fix the configure check for Tcl/Tk with optimizing compilers (GH-153543) by miss-islington · Pull Request #153553 · python/cpython

X Title: [3.15] gh-126877: Fix the configure check for Tcl/Tk with optimizing compilers (GH-153543) by miss-islington · Pull Request #153553 · python/cpython

Description: The check assigned the addresses of Tcl_Init() and Tk_Init() to unused variables, which optimizing compilers can eliminate, so it linked even when the libraries were missing. Call the functions instead. (cherry picked from commit ff0a9ae) Co-authored-by: Serhiy Storchaka storchaka@gmail.com Co-authored-by: Claude Opus 4.8 noreply@anthropic.com Issue: gh-126877

Open Graph Description: The check assigned the addresses of Tcl_Init() and Tk_Init() to unused variables, which optimizing compilers can eliminate, so it linked even when the libraries were missing. Call the functions in...

X Description: The check assigned the addresses of Tcl_Init() and Tk_Init() to unused variables, which optimizing compilers can eliminate, so it linked even when the libraries were missing. Call the functions in...

Opengraph URL: https://github.com/python/cpython/pull/153553

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[3.15] gh-126877: Fix the configure check for Tcl/Tk with optimizing compilers (GH-153543) https://github.com/python/cpython/pull/153553/files#top
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5e49eaa gh-126877: Fix the configure check for Tcl/Tk with optimizing compile… serhiy-storchaka Jul 11, 2026 https://github.com/python/cpython/pull/153553/commits/5e49eaa4f69a74090bf53ea48c2e4700b709971a
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