From ad9a971e83dfe92c0c6d792cbe6859f4a12f82c7 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Wed, 28 Dec 2022 21:44:17 -0800
Subject: [PATCH] Do not use open64 on linux with musl

glibc is providing open64 and other lfs64 functions but musl aliases
them to normal equivalents since off_t is always 64-bit on musl,
therefore check for target env along when target OS is linux before
using open64, this is more available. Latest Musl has made these
namespace changes [1]

[1] https://git.musl-libc.org/cgit/musl/commit/?id=246f1c811448f37a44b41cd8df8d0ef9736d95f4

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 src/util_libc.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/util_libc.rs b/src/util_libc.rs
index 65207fc6..0f4c0e97 100644
--- a/src/util_libc.rs
+++ b/src/util_libc.rs
@@ -139,7 +139,7 @@ impl Weak {
 }
 
 cfg_if! {
-    if #[cfg(any(target_os = "linux", target_os = "emscripten"))] {
+    if #[cfg(any(all(target_os = "linux", not(target_env = "musl")), target_os = "emscripten"))] {
         use libc::open64 as open;
     } else {
         use libc::open;