From e046530eb6de28842dd75e9b0bfbba261dbf9f97 Mon Sep 17 00:00:00 2001
From: Gavin Hayes <gavin@computoid.com>
Date: Mon, 17 Oct 2022 14:25:33 -0400
Subject: [PATCH] F_SETFL is not implemented on nt

---
 libc/calls/fcntl-nt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libc/calls/fcntl-nt.c b/libc/calls/fcntl-nt.c
index 20c94be4e..a4ef82aea 100644
--- a/libc/calls/fcntl-nt.c
+++ b/libc/calls/fcntl-nt.c
@@ -140,7 +140,7 @@ textwindows int sys_fcntl_nt(int fd, int cmd, uintptr_t arg) {
       // O_DSYNC / O_RSYNC / O_SYNC maybe if we fsync() everything
       // O_DIRECT | O_RANDOM | O_SEQUENTIAL | O_NDELAY possible but
       // not worth it.
-      return einval();
+      return enosys();
     } else if (cmd == F_GETFD) {
       if (g_fds.p[fd].flags & O_CLOEXEC) {
         return FD_CLOEXEC;