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GeezerVison is showing github.com — gh-144121: Allow overriding COMPILER with UNVERSIONED_COMPILER by mcepl · Pull Request #144124 · python/cpython

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@mcepl

@mcepl mcepl commented Jan 21, 2026 •
edited by bedevere-app Bot
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Introduce UNVERSIONED_COMPILER variable in Makefile.pre.in to allow overriding the COMPILER macro definition during the build of Python/getcompiler.o.

This enables reproducible builds by providing a way to set a generic compiler identification string (e.g., "[GCC]") instead of the default versioned one.

The rule is made conditional on UNVERSIONED_COMPILER being defined.

References: https://discuss.python.org/t/unversioned-compiler-symbol-for-getcompiler-c/91735
Fixes: #144121

  • Issue: Make COMPILER definition in getcompiler.c optionally static for reproducible builds #144121

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@mcepl
mcepl requested review from AA-Turner, emmatyping and erlend-aasland as code owners January 21, 2026 18:29
@bedevere-app bedevere-app Bot added the awaiting review label Jan 21, 2026
@mcepl mcepl changed the title Allow overriding COMPILER with UNVERSIONED_COMPILER gh-144124: Allow overriding COMPILER with UNVERSIONED_COMPILER Jan 21, 2026
@mcepl
mcepl force-pushed the COMPILER-getcompiler.c branch from 6f12a2b to a787988 Compare January 21, 2026 18:31
@mcepl mcepl changed the title gh-144124: Allow overriding COMPILER with UNVERSIONED_COMPILER gh-144121: Allow overriding COMPILER with UNVERSIONED_COMPILER Jan 21, 2026
@bedevere-app bedevere-app Bot mentioned this pull request Jan 21, 2026
Make COMPILER definition in getcompiler.c optionally static for reproducible builds #144121
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@mcepl
mcepl force-pushed the COMPILER-getcompiler.c branch 2 times, most recently from 51bb66b to 39f408f Compare January 21, 2026 18:34
@hugovk hugovk added the build The build process and cross-build label Jan 21, 2026
@mcepl
mcepl force-pushed the COMPILER-getcompiler.c branch from c3fe01e to 382b56d Compare January 26, 2026 15:00
@github-actions

github-actions Bot commented May 5, 2026

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This PR is stale because it has been open for 30 days with no activity.
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@github-actions github-actions Bot added the stale Stale PR or inactive for long period of time. label May 5, 2026
@mcepl
mcepl force-pushed the COMPILER-getcompiler.c branch from 382b56d to f5e8c6b Compare May 5, 2026 14:11
@github-actions github-actions Bot removed the stale Stale PR or inactive for long period of time. label May 17, 2026
@mcepl
mcepl requested a review from itamaro as a code owner July 14, 2026 08:11
@vstinner vstinner mentioned this pull request Oct 8, 2026
gh-158948: Generate Modules/getbuildinfo.h #158951
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@vstinner

vstinner commented Oct 8, 2026

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I created #158951 which will make it easier to override build information strings, such as the compiler string. But the change itself doesn't add this ability.
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@mcepl
Allow overriding COMPILER with UNVERSIONED_COMPILER
0dc146c 
Introduce UNVERSIONED_COMPILER variable in Makefile.pre.in to allow
overriding the COMPILER macro definition during the build of
Python/getcompiler.o.

This enables reproducible builds by providing a way to set a generic
compiler identification string (e.g., "[GCC]") instead of the default
versioned one.

The rule is made conditional on UNVERSIONED_COMPILER being defined.

References: https://discuss.python.org/t/unversioned-compiler-symbol-for-getcompiler-c/91735
Fixes: python#144121
@mcepl
mcepl force-pushed the COMPILER-getcompiler.c branch from cb71f85 to 0dc146c Compare October 23, 2026 18:30
@bedevere-app bedevere-app Bot added the type-feature A feature request or enhancement label Oct 23, 2026
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@erlend-aasland erlend-aasland Awaiting requested review from erlend-aasland erlend-aasland is a code owner
@AA-Turner AA-Turner Awaiting requested review from AA-Turner AA-Turner is a code owner
@emmatyping emmatyping Awaiting requested review from emmatyping emmatyping is a code owner
@itamaro itamaro Awaiting requested review from itamaro itamaro is a code owner

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awaiting review build The build process and cross-build type-feature A feature request or enhancement

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Make COMPILER definition in getcompiler.c optionally static for reproducible builds

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@mcepl @vstinner @hugovk
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