From 23cc850ff18652c7b75fa423f9dfff5526a239a7 Mon Sep 17 00:00:00 2001
From: newpavlov <newpavlov@gmail.com>
Date: Mon, 19 Aug 2019 10:44:08 +0300
Subject: [PATCH] return 0 from errno function

---
 src/libstd/sys/wasi/os.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libstd/sys/wasi/os.rs b/src/libstd/sys/wasi/os.rs
index 026ff71de345..8411878eeccd 100644
--- a/src/libstd/sys/wasi/os.rs
+++ b/src/libstd/sys/wasi/os.rs
@@ -21,7 +21,7 @@ pub unsafe fn env_lock() -> impl Any {
 }
 
 pub fn errno() -> i32 {
-    panic!("unsupported")
+    0
 }
 
 pub fn error_string(errno: i32) -> String {