Rollup merge of rust-lang#124649 - Meziu:master, r=ChrisDenton

matthiaskrgr · web-flow · commit a7f4a2edc67e · 2024-05-03T15:26:11.000+02:00
Fix HorizonOS build broken by rust-lang#124210 HorizonOS (for the Tier-3 target `armv6k-nintendo-3ds`) does not support `dirfd()`, as many other similar targets.
diff --git a/library/std/src/sys/pal/unix/fs.rs b/library/std/src/sys/pal/unix/fs.rs
@@ -860,6 +860,7 @@ impl Drop for Dir {
             target_os = "hurd",
             target_os = "espidf",
             target_os = "fuchsia",
+            target_os = "horizon",
         )))]
         {
             let fd = unsafe { libc::dirfd(self.0) };

Original file line number	Diff line number	Diff line change
`@@ -860,6 +860,7 @@ impl Drop for Dir {`
`860`	`860`	`target_os = "hurd",`
`861`	`861`	`target_os = "espidf",`
`862`	`862`	`target_os = "fuchsia",`
	`863`	`+ target_os = "horizon",`
`863`	`864`	`)))]`
`864`	`865`	`{`
`865`	`866`	`let fd = unsafe { libc::dirfd(self.0) };`