From 47cb789332e80d51699ab95ef610a69f5556d44d Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Thu, 13 Jul 2023 00:34:45 +0900
Subject: [PATCH] [ruby/etc] Declare `getlogin` even if unistd.h is not
 available

Although MinGW provides this header but not the function, Windows
version ruby provides the function.

https://github.com/ruby/etc/commit/f7fa1884fa
---
 ext/etc/etc.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/ext/etc/etc.c b/ext/etc/etc.c
index cf969038ff..78657b43d0 100644
--- a/ext/etc/etc.c
+++ b/ext/etc/etc.c
@@ -14,8 +14,6 @@
 #include <sys/types.h>
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
-#else
-char *getlogin(void);
 #endif
 
 #ifdef HAVE_GETPWENT
@@ -56,6 +54,7 @@ static VALUE sGroup;
 #  include <stdlib.h>
 # endif
 #endif
+char *getlogin(void);
 
 #define RUBY_ETC_VERSION "1.4.2"