sys-fs/zfs: Cherry-pick musl S_IFMT patch from upstream for 2.3.2

Closes: https://bugs.gentoo.org/956272
Signed-off-by: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
Part-of: https://github.com/gentoo/gentoo/pull/42121
Closes: https://github.com/gentoo/gentoo/pull/42121
Signed-off-by: Sam James <sam@gentoo.org>

sys-fs/zfs/files/2.3.2-musl_S_IFMT.patch

@@ -0,0 +1,40 @@
+https://github.com/openzfs/zfs/pull/17294 (merged)
+
+From 634c172ee89f5303493a75dc7ff55e0a355b503a Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Jos=C3=A9=20Luis=20Salvador=20Rufo?=
+ <salvador.joseluis@gmail.com>
+Date: Fri, 2 May 2025 23:49:25 +0200
+Subject: [PATCH] tests: fix `S_IFMT` undeclared at `statx.c`
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+`S_IFMT` is declared in `sys/stat.h`, but we cannot include this header
+because it redeclares the `statx` function with different argument
+types. Therefore, we define `S_IFMT` ourselves, in the same way as the
+other definitions.
+
+Reviewed-by: Rob Norris <robn@despairlabs.com>
+Reviewed-by: George Melikov <mail@gmelikov.ru>
+Reviewed-by: Alexander Motin <mav@FreeBSD.org>
+Signed-off-by: José Luis Salvador Rufo <salvador.joseluis@gmail.com>
+Closes #17293
+Closes #17294
+---
+ tests/zfs-tests/cmd/statx.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/tests/zfs-tests/cmd/statx.c b/tests/zfs-tests/cmd/statx.c
+index 89939f6efb40..1acc7e58c5ce 100644
+--- a/tests/zfs-tests/cmd/statx.c
++++ b/tests/zfs-tests/cmd/statx.c
+@@ -109,6 +109,9 @@ _statx(int fd, const char *path, int flags, unsigned int mask, void *stx)
+ #ifndef STATX_DIOALIGN
+ #define	STATX_DIOALIGN	(1<<13)
+ #endif
++#ifndef S_IFMT
++#define	S_IFMT 0170000
++#endif
+ 
+ typedef struct {
+ 	int64_t		tv_sec;

sys-fs/zfs/zfs-2.3.2.ebuild

@@ -111,6 +111,7 @@ RESTRICT="test"
 
 PATCHES=(
 	"${FILESDIR}"/2.1.5-dracut-zfs-missing.patch
+	"${FILESDIR}"/2.3.2-musl_S_IFMT.patch
 )
 
 pkg_pretend() {