From 616adc22e109874038ed6b9d1f0d83b3ae0fcbc4 Mon Sep 17 00:00:00 2001
From: topjohnwu <topjohnwu@gmail.com>
Date: Sat, 15 Oct 2022 20:18:20 -0700
Subject: [PATCH] Support Linux < 3.6

---
 native/src/base/files.rs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/native/src/base/files.rs b/native/src/base/files.rs
index df820655a..6fae3224a 100644
--- a/native/src/base/files.rs
+++ b/native/src/base/files.rs
@@ -82,19 +82,19 @@ pub fn realpath(path: &CStr, buf: &mut [u8]) -> isize {
     if let Some(fd) = open_fd!(path, O_PATH | O_CLOEXEC) {
         let mut st1: libc::stat;
         let mut st2: libc::stat;
+        let mut skip_check = false;
         unsafe {
             st1 = std::mem::zeroed();
             if libc::fstat(fd.as_raw_fd(), &mut st1) < 0 {
-                *errno() = ENOENT;
-                return -1;
+                // This shall only fail on Linux < 3.6
+                skip_check = true;
             }
         }
         let len = fd_path(fd.as_raw_fd(), buf);
         unsafe {
             st2 = std::mem::zeroed();
             if libc::stat(buf.as_ptr().cast(), &mut st2) < 0
-                || st2.st_dev != st1.st_dev
-                || st2.st_ino != st1.st_ino
+                || (!skip_check && (st2.st_dev != st1.st_dev || st2.st_ino != st1.st_ino))
             {
                 *errno() = ENOENT;
                 return -1;