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-rw-r--r--library/std/src/sys/unix/fd.rs4
1 files changed, 3 insertions, 1 deletions
diff --git a/library/std/src/sys/unix/fd.rs b/library/std/src/sys/unix/fd.rs
index 137ca3a7633..30812dabb4e 100644
--- a/library/std/src/sys/unix/fd.rs
+++ b/library/std/src/sys/unix/fd.rs
@@ -47,6 +47,7 @@ const READ_LIMIT: usize = libc::ssize_t::MAX as usize;
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
+    target_os = "watchos",
 ))]
 const fn max_iov() -> usize {
     libc::IOV_MAX as usize
@@ -67,7 +68,8 @@ const fn max_iov() -> usize {
     target_os = "macos",
     target_os = "netbsd",
     target_os = "openbsd",
-    target_os = "horizon"
+    target_os = "horizon",
+    target_os = "watchos",
 )))]
 const fn max_iov() -> usize {
     16 // The minimum value required by POSIX.