From 2e36b1e0d569cb935e8f1d557d6d58ca3757d37e Mon Sep 17 00:00:00 2001
From: zaniebot <242828183+zaniebot@users.noreply.github.com>
Date: Wed, 21 Oct 2026 18:19:30 +0000
Subject: [PATCH 1/2] Accept the musl `getdents64` buffer type

---
 .../Build/2026-10-21-18-00-00.gh-issue-0.musl-getdents64.rst    | 2 ++
 Modules/_posixsubprocess.c                                      | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)
 create mode 100644 Misc/NEWS.d/next/Build/2026-10-21-18-00-00.gh-issue-0.musl-getdents64.rst

diff --git a/Misc/NEWS.d/next/Build/2026-10-21-18-00-00.gh-issue-0.musl-getdents64.rst b/Misc/NEWS.d/next/Build/2026-10-21-18-00-00.gh-issue-0.musl-getdents64.rst
new file mode 100644
index 00000000000000..cd6515261cb52b
--- /dev/null
+++ b/Misc/NEWS.d/next/Build/2026-10-21-18-00-00.gh-issue-0.musl-getdents64.rst
@@ -0,0 +1,2 @@
+Fix building :mod:`subprocess` with musl headers that declare the
+``getdents64`` buffer as a pointer to ``struct dirent``.
diff --git a/Modules/_posixsubprocess.c b/Modules/_posixsubprocess.c
index 2291280ec117f2..420a4769db184c 100644
--- a/Modules/_posixsubprocess.c
+++ b/Modules/_posixsubprocess.c
@@ -436,7 +436,7 @@ _close_open_fds_safe(int start_fd, int *fds_to_keep, Py_ssize_t fds_to_keep_len)
         Py_ssize_t bytes;
         while (1) {
 #ifdef HAVE_GETDENTS64
-            bytes = getdents64(fd_dir_fd, buffer, sizeof(buffer));
+            bytes = getdents64(fd_dir_fd, (void *)buffer, sizeof(buffer));
 #else
             bytes = syscall(SYS_getdents64, fd_dir_fd,
                             (struct py_dirent64 *)buffer, sizeof(buffer));

From 6e40b9ea21f91b582cad7749898068314a300710 Mon Sep 17 00:00:00 2001
From: zaniebot <242828183+zaniebot@users.noreply.github.com>
Date: Wed, 21 Oct 2026 19:07:11 +0000
Subject: [PATCH 2/2] Remove `NEWS` entry with an invalid issue number

---
 .../Build/2026-10-21-18-00-00.gh-issue-0.musl-getdents64.rst    | 2 --
 1 file changed, 2 deletions(-)
 delete mode 100644 Misc/NEWS.d/next/Build/2026-10-21-18-00-00.gh-issue-0.musl-getdents64.rst

diff --git a/Misc/NEWS.d/next/Build/2026-10-21-18-00-00.gh-issue-0.musl-getdents64.rst b/Misc/NEWS.d/next/Build/2026-10-21-18-00-00.gh-issue-0.musl-getdents64.rst
deleted file mode 100644
index cd6515261cb52b..00000000000000
--- a/Misc/NEWS.d/next/Build/2026-10-21-18-00-00.gh-issue-0.musl-getdents64.rst
+++ /dev/null
@@ -1,2 +0,0 @@
-Fix building :mod:`subprocess` with musl headers that declare the
-``getdents64`` buffer as a pointer to ``struct dirent``.