Resolved warning C4996: 'fileno': The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name: _fileno.

Author: matt77hias

src/os.cc

@@ -183,11 +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_));
+#elif defined(_WIN32)
+  int fd = _fileno(file_);
 #else
   int fd = fileno(file_);
 #endif