From a84a9b1819f9569715c6e6ebc0b2accdb8f12e23 Mon Sep 17 00:00:00 2001
From: Matthias Moulin <matthias.moulin@gmail.com>
Date: Sun, 7 Apr 2024 12:50:27 +0200
Subject: [PATCH] Resolved warning C4996: 'fileno': The POSIX name for this
 item is deprecated. Instead, use the ISO C and C++ conformant name: _fileno.

---
 src/os.cc | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/src/os.cc b/src/os.cc
index 70a4a04c4d3d3..253b8c4d8b4af 100644
--- a/src/os.cc
+++ b/src/os.cc
@@ -183,13 +183,9 @@ void buffered_file::close() {
 
 int buffered_file::descriptor() const {
 #ifdef FMT_HAS_SYSTEM
-  // fileno is a macro on OpenBSD.
-#  ifdef fileno
-#    undef fileno
-#  endif
-  int fd = FMT_POSIX_CALL(fileno(file_));
+  int fd = FMT_POSIX_CALL(_fileno(file_));
 #else
-  int fd = fileno(file_);
+  int fd = _fileno(file_);
 #endif
   if (fd == -1)
     FMT_THROW(system_error(errno, FMT_STRING("cannot get file descriptor")));