std: use LFS open64 on Linux

Author: cuviper

src/libstd/sys/unix/fs.rs

@@ -26,10 +26,10 @@ use sys::{cvt, cvt_r};
 use sys_common::{AsInner, FromInner};
 
 #[cfg(target_os = "linux")]
-use libc::{stat64, fstat64, lstat64, off64_t, ftruncate64, lseek64, dirent64, readdir64_r};
+use libc::{stat64, fstat64, lstat64, off64_t, ftruncate64, lseek64, dirent64, readdir64_r, open64};
 #[cfg(not(target_os = "linux"))]
 use libc::{stat as stat64, fstat as fstat64, lstat as lstat64, off_t as off64_t,
-           ftruncate as ftruncate64, lseek as lseek64, dirent as dirent64};
+           ftruncate as ftruncate64, lseek as lseek64, dirent as dirent64, open as open64};
 #[cfg(not(any(target_os = "linux", target_os = "solaris")))]
 use libc::{readdir_r as readdir64_r};
 
@@ -397,7 +397,7 @@ impl File {
                     try!(opts.get_creation_mode()) |
                     (opts.custom_flags as c_int & !libc::O_ACCMODE);
         let fd = try!(cvt_r(|| unsafe {
-            libc::open(path.as_ptr(), flags, opts.mode as c_int)
+            open64(path.as_ptr(), flags, opts.mode as c_int)
         }));
         let fd = FileDesc::new(fd);