From d78bf365a6149e4c8c47f469b997c71772d4517e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fabian=20Gr=C3=BCnbichler?= <f.gruenbichler@proxmox.com>
Date: Tue, 16 Dec 2025 08:38:45 +0100
Subject: [PATCH] Enable file locking support for Hurd
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like Illumos (#148322) and aix (#148619), Hurd was missed when originally
introducing locking gates per target OS in #132977. building rustc on Hurd was
broken as a result since 1.91.

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
---
 library/std/src/fs/tests.rs    |  4 ++++
 library/std/src/sys/fs/unix.rs | 10 ++++++++++
 2 files changed, 14 insertions(+)

diff --git a/library/std/src/fs/tests.rs b/library/std/src/fs/tests.rs
index bcaafcfee787a..ec2f2307ca303 100644
--- a/library/std/src/fs/tests.rs
+++ b/library/std/src/fs/tests.rs
@@ -212,6 +212,7 @@ fn file_test_io_seek_and_write() {
         target_os = "cygwin",
         target_os = "freebsd",
         target_os = "fuchsia",
+        target_os = "hurd",
         target_os = "illumos",
         target_os = "linux",
         target_os = "netbsd",
@@ -244,6 +245,7 @@ fn file_lock_multiple_shared() {
         target_os = "cygwin",
         target_os = "freebsd",
         target_os = "fuchsia",
+        target_os = "hurd",
         target_os = "illumos",
         target_os = "linux",
         target_os = "netbsd",
@@ -277,6 +279,7 @@ fn file_lock_blocking() {
         target_os = "cygwin",
         target_os = "freebsd",
         target_os = "fuchsia",
+        target_os = "hurd",
         target_os = "illumos",
         target_os = "linux",
         target_os = "netbsd",
@@ -307,6 +310,7 @@ fn file_lock_drop() {
         target_os = "cygwin",
         target_os = "freebsd",
         target_os = "fuchsia",
+        target_os = "hurd",
         target_os = "illumos",
         target_os = "linux",
         target_os = "netbsd",
diff --git a/library/std/src/sys/fs/unix.rs b/library/std/src/sys/fs/unix.rs
index ee3cb54a5ee6e..670bb425c0a27 100644
--- a/library/std/src/sys/fs/unix.rs
+++ b/library/std/src/sys/fs/unix.rs
@@ -1305,6 +1305,7 @@ impl File {
     #[cfg(any(
         target_os = "freebsd",
         target_os = "fuchsia",
+        target_os = "hurd",
         target_os = "linux",
         target_os = "netbsd",
         target_os = "openbsd",
@@ -1330,6 +1331,7 @@ impl File {
     #[cfg(not(any(
         target_os = "freebsd",
         target_os = "fuchsia",
+        target_os = "hurd",
         target_os = "linux",
         target_os = "netbsd",
         target_os = "openbsd",
@@ -1346,6 +1348,7 @@ impl File {
     #[cfg(any(
         target_os = "freebsd",
         target_os = "fuchsia",
+        target_os = "hurd",
         target_os = "linux",
         target_os = "netbsd",
         target_os = "openbsd",
@@ -1371,6 +1374,7 @@ impl File {
     #[cfg(not(any(
         target_os = "freebsd",
         target_os = "fuchsia",
+        target_os = "hurd",
         target_os = "linux",
         target_os = "netbsd",
         target_os = "openbsd",
@@ -1387,6 +1391,7 @@ impl File {
     #[cfg(any(
         target_os = "freebsd",
         target_os = "fuchsia",
+        target_os = "hurd",
         target_os = "linux",
         target_os = "netbsd",
         target_os = "openbsd",
@@ -1428,6 +1433,7 @@ impl File {
     #[cfg(not(any(
         target_os = "freebsd",
         target_os = "fuchsia",
+        target_os = "hurd",
         target_os = "linux",
         target_os = "netbsd",
         target_os = "openbsd",
@@ -1447,6 +1453,7 @@ impl File {
     #[cfg(any(
         target_os = "freebsd",
         target_os = "fuchsia",
+        target_os = "hurd",
         target_os = "linux",
         target_os = "netbsd",
         target_os = "openbsd",
@@ -1488,6 +1495,7 @@ impl File {
     #[cfg(not(any(
         target_os = "freebsd",
         target_os = "fuchsia",
+        target_os = "hurd",
         target_os = "linux",
         target_os = "netbsd",
         target_os = "openbsd",
@@ -1507,6 +1515,7 @@ impl File {
     #[cfg(any(
         target_os = "freebsd",
         target_os = "fuchsia",
+        target_os = "hurd",
         target_os = "linux",
         target_os = "netbsd",
         target_os = "openbsd",
@@ -1532,6 +1541,7 @@ impl File {
     #[cfg(not(any(
         target_os = "freebsd",
         target_os = "fuchsia",
+        target_os = "hurd",
         target_os = "linux",
         target_os = "netbsd",
         target_os = "openbsd",