Description

carlo-bramini

opened on Apr 7, 2026

Issue body actions

Bug report

Bug description:

Compiling on CYGWIN gives this message on the console:

warning: Your platform does not support any safe implementation of memzero -- consider a pull request!

However, CYGWIN provides explicit_bzero(), actually.
The Modules/_hacl/Lib_Memzero0.c already supports it, so, a tiny fix is required for just adding __CYGWIN__ to the list of supported platforms.

CPython versions tested on:

CPython main branch

Operating systems tested on:

Windows

Linked PRs

• gh-148200: fix warning on missing safe memzero() on CYGWIN #148202
• gh-148200: Update Modules/_hacl/ for Cygwin #149802

Activity

1. carlo-bramini

   added

   type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

   on Apr 7, 2026
2. carlo-bramini

   added 3 commits that reference this issue on Apr 7, 2026

   pythongh-148200: fix warning on missing safe memzero() on CYGWIN

   33376a0

   Fix warning on missing safe memzero() on CYGWIN

   04ab68e

   pythongh-148200: fix warning on missing safe memzero() on CYGWIN

   011af27
3. StanFromIreland

   added

   extension-modulesC modules in the Modules dirC modules in the Modules dir

   OS-unsupported

   on Apr 7, 2026
4. github-project-automation

   added this to Unsupported platformson Apr 7, 2026
5. carlo-bramini

   added 6 commits that reference this issue on Apr 7, 2026

   pythongh-148200: fix warning on missing safe memzero() on CYGWIN

   008a3a1

   pythongh-148200: sync HACL to the updated upstream

   3cb0fe6

   pythongh-148200: sync HACL to the updated upstream

   1e6383f

   pythongh-148200: sync HACL to the updated upstream

   f099b51

   pythongh-148200: sync HACL to the updated upstream

   c8b98c9

   pythongh-148200: sync HACL to the updated upstream

   97d748a
6. carlo-bramini commented on May 13, 2026

   

   carlo-bramini

   on May 13, 2026

   ContributorAuthor

   More actions

   Hello, with the release of the new beta version 3.15.0b1, I'm wondering if it would be possible to sync the sources of hacl from upstream or by applying the linked PR, which does the same thing. Thank you very much.
7. vstinner

   added 3 commits that reference this issue on May 13, 2026

   pythongh-148200: Update Modules/_hacl/ for Cygwin

   1235667

   pythongh-148200: Update Modules/_hacl/ for Cygwin

   ef34850

   gh-148200: Update Modules/_hacl/ for Cygwin (#149802)

   a0551b1
8. vstinner commented on May 15, 2026

   

   vstinner

   on May 15, 2026

   Member

   More actions

   Hello, with the release of the new beta version 3.15.0b1, I'm wondering if it would be possible to sync the sources of hacl from upstream or by applying the linked PR, which does the same thing.

   I wrote #149802 to update Modules/_hacl/. I close the issue.
9. vstinner

   closed this as completedon May 15, 2026
10. github-project-automation

    moved this to Done in Unsupported platformson May 15, 2026
11. vstinner

    added a parent issue on May 15, 2026

    • Enhance Cygwin support #149879

Issue actions