From 6f09370028341778c07d822c2c59947bed30fa90 Mon Sep 17 00:00:00 2001
From: David CARLIER <devnexen@gmail.com>
Date: Thu, 7 Oct 2021 20:47:17 +0100
Subject: [PATCH] environ on macos uses directly libc which has the correct
 signature.

---
 library/std/src/sys/unix/os.rs | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/library/std/src/sys/unix/os.rs b/library/std/src/sys/unix/os.rs
index 87893d26912..a596fc67671 100644
--- a/library/std/src/sys/unix/os.rs
+++ b/library/std/src/sys/unix/os.rs
@@ -472,10 +472,7 @@ impl Iterator for Env {
 
 #[cfg(target_os = "macos")]
 pub unsafe fn environ() -> *mut *const *const c_char {
-    extern "C" {
-        fn _NSGetEnviron() -> *mut *const *const c_char;
-    }
-    _NSGetEnviron()
+    libc::_NSGetEnviron() as *mut *const *const c_char
 }
 
 #[cfg(not(target_os = "macos"))]