From 9ce567efc20e3bfc8409ae92af74ebfc53b83aa8 Mon Sep 17 00:00:00 2001
From: Dan Gohman <dev@sunfishcode.online>
Date: Wed, 24 Feb 2021 10:35:40 -0800
Subject: [PATCH] Cast `libc::STDIN_FILENO` to `RawFd`.

WASI's `RawFd` is a `u32`, while `libc` uses `c_int`.
---
 library/std/src/sys/wasi/ext/io.rs | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/library/std/src/sys/wasi/ext/io.rs b/library/std/src/sys/wasi/ext/io.rs
index d0edfa9f35f..3c480aa8e19 100644
--- a/library/std/src/sys/wasi/ext/io.rs
+++ b/library/std/src/sys/wasi/ext/io.rs
@@ -145,36 +145,36 @@ impl IntoRawFd for fs::File {
 
 impl AsRawFd for io::Stdin {
     fn as_raw_fd(&self) -> RawFd {
-        libc::STDIN_FILENO
+        libc::STDIN_FILENO as RawFd
     }
 }
 
 impl AsRawFd for io::Stdout {
     fn as_raw_fd(&self) -> RawFd {
-        libc::STDOUT_FILENO
+        libc::STDOUT_FILENO as RawFd
     }
 }
 
 impl AsRawFd for io::Stderr {
     fn as_raw_fd(&self) -> RawFd {
-        libc::STDERR_FILENO
+        libc::STDERR_FILENO as RawFd
     }
 }
 
 impl<'a> AsRawFd for io::StdinLock<'a> {
     fn as_raw_fd(&self) -> RawFd {
-        libc::STDIN_FILENO
+        libc::STDIN_FILENO as RawFd
     }
 }
 
 impl<'a> AsRawFd for io::StdoutLock<'a> {
     fn as_raw_fd(&self) -> RawFd {
-        libc::STDOUT_FILENO
+        libc::STDOUT_FILENO as RawFd
     }
 }
 
 impl<'a> AsRawFd for io::StderrLock<'a> {
     fn as_raw_fd(&self) -> RawFd {
-        libc::STDERR_FILENO
+        libc::STDERR_FILENO as RawFd
     }
 }